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ELSA LANCOM Business LC-4X00 Manual

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  • Page 1 ELSA LANCOM Business...
  • Page 2 The reproduction and distribution of the documentation and software supplied with this product and the use of its contents is subject to written authorization from ELSA. We reserve the right to make any alter- ations that arise as the result of technical development.
  • Page 3 Preface Thank you for placing your trust in this ELSA product. By selecting the ELSA LANCOM Business you have chosen a router which you can use to connect local area networks or single workstations with other networks via ISDN lines.

  • Page 5: Table Of Contents

    This is what you need for remote configuration........17 This is how you prepare the remote configuration........17 The first remote connection using a dial-up connection ( ELSA LANconfig ) 17 The first remote connection using a PPP client and telnet....... 17 Limiting remote configuration..............
  • Page 6 Everything ok? Checking the line with LCP..........51 Assigning IP addresses via PPP ..............52 Callback functions..................53 Fast ELSA callback ..................56 Callback as specified in RFC 1570 (PPP LCP extensions)......56 Channel bundling with MLPPP..............57 IPX routing......................58 Naming IPX addresses ................
  • Page 7 Installation ....................97 Faxing with the ELSA CAPI Faxmodem............. 97 The least-cost router................... 97 Workshop ......................... 103 Configuration using ELSA LANconfig and the wizards......103 Configuration without wizards..............103 Which device are you using? ..............104 Additional information ................104 Internet applications..................
  • Page 8 Status/Config-statistics ................R30 Status/Queue-statistics ................R30 Status/Connection-statistics ..............R31 Status/Info-connection ................R32 Status/Layer-connection................. R33 Status/Call-info-table ................R33 Status/Remote-statistics ................ R34 Status/S0-bus ..................R35 Status/Channel-statistics ............... R35 Status/Time-statistics................R36 Status/LCR-statistics ................R37 Status/Delete-values ................R37 Setup......................... R37 Setup/WAN-module ..................R38 ELSA LANCOM Business...
  • Page 9 Firmware ......................R80 Other ......................... R82 Novell SAP numbers (on CD only) ................R83 TCP/IP ports (on CD only)..................R87 ELSA LANCOM Business internal (on CD only) ..........R91 Script processing ....................R91 General....................R91 The script list................... R92 CompuServe select ................. R92 Online trace outputs ..................
  • Page 10 Content ELSA LANCOM Business...

  • Page 11: Introduction

    All these applications are making the use of ISDN router solutions more attractive than ever. ISDN routers from ELSA connect local networks with the Internet and act as a communications center for handling fax and voice mail services in small and medium- sized companies.
  • Page 12 These functions are made possible by using the LANCAPI . LANCAPI is a special form of the CAPI 2.0 interface that applications such as ELSA- RVS-COM or ELSA-ZOC can use to access the router.

  • Page 13: What Does The Elsa Lancom Business Offer

    400%. Multiple-channel management Four ISDN connections or a total of eight B channels are available when using the ELSA LANCOM Business 4100 . It is possible to specify the order in which the channels will be used for each connection. For example, certain channels can be set aside for RAS access, or others enabled for Internet access.
  • Page 14 With the LANmonitor you have status information of the ELSA LANCOM permanently on your monitor. For each device on the local network, the LANmonitor displays the most important information, e.g.: Connection status for each B channel...
  • Page 15 Remote configuration using PPP One special configuration feature of the routers from ELSA which cannot and should not be setup locally is its ability to be configured remotely via the Windows Dial-Up Network.
  • Page 16 LANCAPI , the PC forwards the fax via the network to the router which establishes the connection to the recipient. The ELSA CAPI Faxmodem furthermore provides a Windows fax driver (fax class 1) as an interface between the ELSA LANCAPI and applications, permitting the use of standard fax programs with an ELSA LANCOM Business .
  • Page 17 DNS server The ELSA LANCOM Business also has the functions of a DNS server available to it. You can thus create associations between IP addresses and the names of computers or networks in order to directly provide the correct route for requests for known computer names.

  • Page 18: The Elsa Lancom Business Takes The Stage

    Operating states and messages can be displayed in three different modes. Use the keys to select the display mode, confirm messages and scroll through the multi-line display. The precise function of each button for the ELSA LANCOM 's various operating modes is described in chapter 'Configuration modes'.
  • Page 19 Introduction LAN-Link green Connection to LAN is established and ready LAN-FDpx green Router is transmitting and receiving data simultaneously LAN-Fast green ELSA LANCOM is operating at 100Mbit ELSA LANCOM Business...
  • Page 20 ¿ ´ ² ¶ º four ISDN S ports ( ELSA LANCOM Business 4100 ) Status LEDs for the four S connections: status Bus not activated flashing rapidly Bus with D channel active, no TEI assigned D channel detected, bus not activated...

  • Page 21: Node Or Hub

    Reorient or relocate the receiving antenna. Increase the distance between this equipment and the receiver. Connect the equipment to an outlet on a circuit other than that to which the receiver is connected. Consult your dealer or an experienced radio/TV technician. ELSA LANCOM Business...
  • Page 22 Introduction ELSA LANCOM Business...

  • Page 23: Configuration Modes

    This section will show you the programs and routes you can use to access the device and set it up. And, if the team at ELSA has produced new firmware with new features for your use, we will show you how to load the new software.

  • Page 24: Requirements For Outband Configuration

    ELSA LANconfig . ELSA LANconfig will now Programs ELSAlan automatically search for ELSA LANCOM devices in the local area network (but not on the serial ports). New devices can be found with Device Find Search at all serial ports. ELSA LANconfig displays new routers in the list by their devices types.

  • Page 25: The User-Friendly Method: Inband

    Just click on the Browse button or call up the command with Device Find to initiate a search for a new router manually. ELSA LANconfig will then prompt for a location to ELSA LANCOM Business...

  • Page 26: Start Up Inband Configuration Using Telnet

    You will only need to specify the local area network if using the inband solution, and then you're off. Once ELSA LANconfig has finished its search, it displays a list of all the devices it has found, together with their names and, perhaps a description, the IP address and its status.

  • Page 27: This Is What You Need For Remote Configuration

    ISDN interface to which the ELSA LANCOM is connected. If you wish, you can also enter the time period after which an idle connection is to be disconnected automatically.

  • Page 28: Limiting Remote Configuration

    Configuration modes Open a telnet session to the ELSA LANCOM . Use the following IP address for this purpose: – '172.17.17.18', if you have not defined an IP address for the PPP client. The ELSA LANCOM automatically uses this address if no other address has been defined.
  • Page 29 Configuration modes Alternatively, enter the following command: passwd You will then be prompted to enter and confirm a new password. ELSA LANCOM Business...

  • Page 30: Configuration Commands

    24.12.1998 18:00:00 language sets the language for the current Languages currently supported: configuration session. English (language English) German (language German) exit, quit, x configuration is terminated. ELSA LANCOM Business...

  • Page 31: New Firmware With Firmsafe

    /se/snmp/admin "" New firmware with FirmSafe The software in the ELSA routers is constantly being updated. We have fitted the devices with a flash ROM which makes child's play of updating the operating software so that you can enjoy the benefits of new features and functions. No need to change the EPROM, no need to open up the case: simply load the new release and you're away.

  • Page 32: How To Load New Software

    ELSA LANconfig then tells you the version number and the date of the firmware in the description and offers to upload the file. The firmware you already have installed will be replaced by the selected release by clicking Open.
  • Page 33 10.0.0.1 and saves it as file1 in the current directory tftp 10.0.0.1 put file1 writeconfig : Writes the configuration from file1 to the device with the address 10.0.0.1 tftp 10.0.0.1 get dir/status/verb file2 : Saves the current connection information in file2 ELSA LANCOM Business...

  • Page 34: Configuration Using Snmp

    The SNMP capabilities of the agents are specified in so-called MIBs = Management Information Bases. The firmware of ELSA routers includes an implementation for an SNMP V.1 agent (in accordance with RFC 1157). A part of MIB-2 and a private MIB, included in the product as a separate file, are supported.
  • Page 35 If you need to delete a row, you have to change the index entry value, i.e. the value in the first column, to its current value. For example: You want to delete the 3rd row from following IP routing table. IP-address IP netmask Router-name Distance 192.168.0.0 255.255.0.0 0.0.0.0 172.16.0.0 255.240.0.0 0.0.0.0 ELSA LANCOM Business...

  • Page 36: The Management Information Base (Mib)

    This compiler converts the MIB file into a form that can be used by the manager. The current ELSA MIB can be found both included with the product on CD and in the ELSA online media. ELSA LANCOM Business...

  • Page 37: What's Happening On The Line

    PPP. Experienced users may interpret these outputs to trace any errors occurring in the establishment of a connection. A particular advantage of this is: The errors being tracked may stem from the configuration of your own ELSA LANCOM or that of the remote site.
  • Page 38 ... brings up the following display for the trace: command All trace outputs Display Status and error outputs Protocol ELSA and PPP outputs TCP-IP IP-Rt., IP-RIP, ICMP and ARP outputs IPX-SPX IPX-Tr., RIP, SAP, IPX-Wd., SPX-Wd., and NetBIOS outputs Time...

  • Page 39: Elsa Lanmonitor

    ELSA LANmonitor The ELSA LANmonitor includes a small monitoring tool with which you can view the most important information on the status of your router on your monitor at any time under Windows operating systems. Many of the internal messages generated by the device are converted to plain text, thereby helping you to troubleshoot.
  • Page 40 To break the connection manually, click on the active channel with the right mouse button. If, in addition to the information in the ELSA LANmonitor device list, you wish to see a minimized status window in the form of an LC display, right-click on the name of the device and select Line Display.
  • Page 41 If you would like a log of the LANmonitor output in file form, select 'Options' from the 'View' menu and go to the 'Log' tab. Enable logging and specify whether LANmonitor should create a log file daily, monthly, or on an ongoing basis. ELSA LANCOM Business...
  • Page 42 Configuration modes ELSA LANCOM Business...

  • Page 43: Operating Modes And Functions

    Needless to say, the parameters that you have set should not be modified by unauthorized persons. The ELSA LANCOM Business thus offers a variety of options to protect die configuration. ELSA LANCOM Business...

  • Page 44: Password Protection

    The circle of authorized users can be expanded by inputting further entries. The filter entries can describe both individual computers and whole networks. The access list can be found in the ELSA LANconfig in the 'TCP/IP' configuration section on the 'General' tab, or in the menu.

  • Page 45: Security For Your Lan

    Security for your LAN You certainly would not like any outsider to have easy access to or to be able to modify the data on your company's servers. The ELSA LANCOM Business offers you various ways of restricting access from outside:...

  • Page 46: Callback

    Access to your own network is granted if the call number appears in the number list, or the caller is called back if the callback option is activated. If the ELSA LANCOM is set to provide security using the telephone number, any calls from remote sites with unknown numbers are denied access.

  • Page 47: The Hiding Place-Ip Masquerading (Nat, Pat)

    “firewall function“. The use of IP masquerading is set individually for each route in the routing table. The routing table can be found in the ELSA LANconfig in the 'TCP/IP' configuration section on the 'Routing' tab, or in the /Setup/IP-router-module/IP-routing-table menu.

  • Page 48: Time-Dependent Connection Control

    Only the router functions are protected by the charge and time monitoring functions! Connections via LANCAPI are not affected. Settings in the charge module The interface settings for the ELSA LANconfig can be found in the 'Management' configuration section on the 'Charging' tab, or under /Setup/Charges-module during telnet or terminal sessions.

  • Page 49: Isdn Connections

    Name list The name list in the ELSA LANconfig can be found in the 'Communication' configuration section on the 'Remote Sites' tab, or under /Setup/WAN-module/Name-list during telnet or terminal sessions.

  • Page 50: Interface Settings

    – Callback using the fast ELSA process – Callback after name verification – Await the callback from the remote station using the fast ELSA process Interface settings The interface settings for the ELSA LANconfig can be found in the 'Management'...

  • Page 51: Router Interface Settings

    This function must be supported by the network operator. LANCAPI interface settings The LANCAPI interface settings for the ELSA LANconfig can be found in the 'LANCAPI' configuration section on the 'General' tab, or under /Setup/LANCAPI-module/ during telnet or terminal sessions.

  • Page 52: Layer List

    'Subscriber Number' field if no number has been specified in the CAPI application. Layer list The list of communications layers in the ELSA LANconfig can be found in the 'Communication' configuration section on the 'General' tab, or under /Setup/WAN- during telnet or terminal sessions.

  • Page 53: Round-Robin List

    Operating modes and functions Round-robin list The round-robin list in the ELSA LANconfig can be found in the 'Communication' configuration section on the 'Remote Sites' tab, or under /Setup/WAN-module/ during telnet or terminal sessions. RoundRobin-list If a remote station can be reached using several numbers, enter the first number in the name list and the rest in the round-robin list.

  • Page 54: Ppp List

    Back-up channels Number of channels to be opened over dial-up lines when a leased line is down. PPP list The PPP list in the ELSA LANconfig can be found in the 'Communication' configuration section on the 'Protocols' tab, or under during /Setup/WAN-module/PPP-list telnet or terminal sessions.

  • Page 55: Call Acceptance

    Operating modes and functions Call acceptance The call acceptance settings for the ELSA LANconfig can be found in the 'Communication' configuration section on the 'Call Accepting' tab, or under /Setup/ during telnet or terminal sessions. WAN-module/Protect Use the call-acceptance settings to determine the circumstances under which the unit will accept incoming calls.

  • Page 56: Setting Up Fixed Connections

    If applicable, the number of channels to be used for a backup connection should be entered here (also the same on both sides of the connection). Remote site Order Back-up channels FVG0 1-1;1-2 ELSA LANCOM Business...
  • Page 57 Short hold 2 Layer-name Callback FVG0 123456 MLHDLC Enter the required number of channels in the channel list and specify the channels to be used. No backup channel is specified. Remote site Order Back-up channels FVG0 1-1;1-2;2-1 ELSA LANCOM Business...

  • Page 58: Dial-Up Via Gsm

    GSM mobile phones. GSM access is set up in the same way as any other remote access, using the convenient wizard in ELSA LANconfig , for example. The layer used must then be adapted to the appropriate protocol. Layer name...

  • Page 59: The Protocol

    ISDN adapters Internet access (when sending addresses) PPP as implemented in the ELSA LANCOM can be used synchronously or asynchronously and over both a transparent HDLC connection and an X.75 connection. The phases of PPP negotiation Establishment of a connection using PPP always begins with a negotiation of the parameters to be used for the connection.

  • Page 60: The Ppp List

    You can specify a custom definition of the PPP negotiation for each of the remote stations that contact your net. The PPP list can be found in the ELSA LANconfig in the 'Communication' configuration section on the 'Protocols' tab, or in the /Setup/WAN- menu.

  • Page 61: Everything Ok? Checking The Line With Lcp

    PPP connections. The default settings should generally suffice. These parameters can only be modified via SNMP or TFTP (using the ELSA LANconfig configuration program)! Username The name with which your router logs onto the remote station.

  • Page 62: Assigning Ip Addresses Via Ppp

    IP address. In the event that a remote station does not have an IP address of its own (e.g. an individual computer belonging to a teleworker), the ELSA LANCOM can assign an IP address for the duration of the connection to permit communications.

  • Page 63: Callback Functions

    LANCOM is used to provide access to the Internet for a local area network. In this case it is possible to configure the ELSA LANCOM so that it has no valid Internet IP address of its own but has one assigned to it by the Internet provider for the duration of the connection.
  • Page 64 The party called knows the callback numbers and only calls these back. It is possible to use the CBCP from a PC running Windows 95, Windows 98 or Windows NT to establish a connection to the ELSA LANCOM have it call you back. The ELSA LANCOM Business...
  • Page 65 'Name' for this setting and no call number may be specified in the name list. Following the authentication process, the dialog box below will appear in Windows 95 in which the user can specify his call number: ELSA LANCOM Business...

  • Page 66: Fast Elsa Callback

    Callback as specified in RFC 1570 (PPP LCP extensions) There are five methods of demanding a callback specified in RFC 1570. All versions are accepted by the ELSA LANCOM . All versions will be processed in the same way, however: The ELSA LANCOM drops the connection to the remote station after authentication and then calls it back three seconds later.

  • Page 67: Channel Bundling With Mlppp

    2 options in the layer list, the timeouts in the names list, the setting for the Y connection in the interface table and the setting for the channel table. ELSA LANCOM Business...

  • Page 68: Ipx Routing

    The IPX router transmits data from networks using IPX/SPX as the network protocols (e.g. Novell networks). A remote network is notified to the computers in the local network by its entry in the IPX routing table. A maximum of 16 different networks can be entered in the routing table. ELSA LANCOM Business...

  • Page 69: Naming Ipx Addresses

    Binding Propagated Backoff BRANCH01 00000245 802.3 Route BRANCH02 00000320 SNAP Filt. HEAD OFFICE 00000420 802.2 Filt. Remote site: The name of the remote station registered as the device name in the corresponding router on the remote side. ELSA LANCOM Business...

  • Page 70: What Happens When Data Is Transmitted On An Ipx Network

    The servers also regularly transmit information regarding which services they offer and which other networks they can reach. They use the special data packets complying with the Service Advertising Protocol or the Routing Information Protocol (RIP). ELSA LANCOM Business...

  • Page 71: Rip And Sap Tables

    The same routing information is then sent in the RIP packets to each router, albeit with a higher tic and hop count ( Setup/IPX-module/LAN- activate). This marks these routes as a sort of stand-by config/RIP-SAP-scal. in the event that all channels are busy on the device addressed. ELSA LANCOM Business...

  • Page 72: Redundant Routes

    The entries in the routing table determine which other networks will be accessible. However, they are then also accessible for data packets which are not actually required in the network of the remote station. These packets can also lead to unwanted connections being established which cost money. ELSA LANCOM Business...
  • Page 73 – A LAN and WAN filter table can be used to tell the router not to include information on routes to particular networks or on certain available services in ELSA LANCOM Business...

  • Page 74: Ip Routing

    An IP router works between networks which use TCP/IP as the network protocol. This only allows data transmissions to destination addresses entered in the routing table. This chapter explains the structure of the IP routing table of an ELSA router, as well as the additional functions available to support IP routing.
  • Page 75 (up to 14). ”Unfavorable“ routes like this will only be used if no other route to the remote station in question can be found. The routing table can be found in the ELSA LANconfig in the 'TCP/IP' configuration section on the 'Routing' tab, or in the /Setup/IP-router-module/IP- menu.
  • Page 76 Internet (private address spaces, e.g. 10.0.0.0), for example, are excluded from transmission. Examples with explanatory notes: IP address Netmask Router Dist. This is what happens: 192.168.1.9 255.255.255.255 FIELD SERVICE The FIELD SERVICE remote station can be reached at IP address 192.168.1.9. ELSA LANCOM Business...

  • Page 77: Tcp/Ip Packet Filters

    Data for particular ports can also be blocked from entering the LAN from the WAN in the same way. The filter tables can use the filter type along with the definition of the port ranges and associated protocols to determine whether the data in question ELSA LANCOM Business...

  • Page 78: Proxy Arp

    The IP router has two separate filter tables, for packets coming from the LAN and from the WAN. These filter tables can be found in the ELSA LANconfig in the 'TCP/IP' configuration section on the 'Filtering' tab, or in the /Setup/IP-router-table/ menus.

  • Page 79: Dynamic Routing With Ip Rip

    Dynamic routing with IP RIP In addition to the static routing table ELSA routers also have a dynamic routing table containing up to 128 entries. Unlike the static table, you do not fill this out yourself, but leave it to be dealt with by the router itself.
  • Page 80 LANCAPI or a/b ports). – The existing connection is using all B channels (channel bundling). To take advantage of this function, enable the 'IP RIP' option (in ELSA LANconfig in the 'TCP/IP' configuration section on the 'Router' tab or in the Setup/IP Router- menu for other configuration modes).

  • Page 81: Ip Masquerading (Nat, Pat)

    LAN router appears on the Internet with an IP address. This IP address is allocated to the router either permanently by the NIC or temporarily by an Internet provider. All the other computers on the network then ”conceal“ themselves behind this one IP address. Aside ELSA LANCOM Business...
  • Page 82 The response to this new packet is now sent to the IP address of the router with the new sender port number. The entry in the internal table allows the router to assign this response to the original sender again. You can view these tables in detail in the router statistics (see also 'Status'). ELSA LANCOM Business...

  • Page 83: Dns Forwarding

    FTP server. The router knows the intranet address of the server from the entry in the service table (in ELSA LANconfig in the 'TCP/IP' configuration section on the 'Masq.' tab or in the Setup/IP-router-module/Masquerading/Service-table menu).

  • Page 84: Policy-Based Routing

    DNS server in the workstations, the request is handled as follows: Initially the router checks whether a DNS server has been entered in its own settings (in ELSA LANconfig in the 'TCP/IP' configuration section on the 'Addresses' tab or in the / menu).

  • Page 85: The Router As Dhcp Server

    DHCP – 'on', 'off' or 'auto'? The DHCP server in the routers of ELSA can be set to three different states: 'on': The DHCP server is permanently active. The configuration of the server (validity of the address pool) is checked when this value is entered.

  • Page 86: How Are The Addresses Assigned

    The DHCP server also checks whether the address selected is still available in the local network. As soon as the uniqueness of an address has been established, the requesting computer is assigned the address found. ELSA LANCOM Business...
  • Page 87 For each request, a host can ask for a specific period of validity. However, a DHCP server can also assign the host a period of validity that differs from what it requested. The DHCP module provides two settings for influencing the period of validity: Maximum lease time in minutes ELSA LANCOM Business...
  • Page 88 IP address, the MAC address, the validity, the name of the computer (if available) and the type of address assignment. The 'Type' field specifies how the address was assigned. This field can assume the following values: The computer has made its initial request. The DHCP server verifies the uniqueness ELSA LANCOM Business...

  • Page 89: Configuring The Router As A Dhcp Server

    DHCP operation. Configuration using ELSA LANconfig and the wizards The ELSA LANconfig includes a wizard to help you with the required settings: Connect the unconfigured router to your local network using a network cable. If you are connecting the device to a hub, the node/hub switch must be set to 'Node'. If you are connecting the router directly to the network adapter of a computer in your network, set the switch to the 'Hub' position.
  • Page 90 Install the ELSA LANconfig on a computer in the network. Start the ELSA LANconfig from the 'ELSAlan' program group. When loading, the ELSA LANconfig , will detect an unconfigured router in the network and will launch the wizard for the basic settings.

  • Page 91: Dns Server

    Manual configuration If configuration using the ELSA LANconfig wizard is not for you, set the parameters for the DHCP server manually: in ELSA LANconfig in the 'TCP/IP' configuration section on the 'DHCP' tab or in the / menu).

  • Page 92: Setting Up The Dns Server

    In addition, computers with fixed IP addresses can also enter themselves in the NetBIOS table and thus be known by their names and addresses. The DNS server in the ELSA LANCOM Business can also be used as an extremely convenient filter mechanism. Requests for domains can be prohibited throughout the LAN, for subnetworks, or even for individual computers—simply by specifying...
  • Page 93 '10.0.0.99'. The mail program will then look for that IP address. With the proper entries in the IP routing table and name list, a connection is automatically established to the network in the headquarters, and finally to the mail server. ELSA LANCOM Business...

  • Page 94: Netbios Proxy

    '0.0.0.0' for all networks. NetBIOS proxy With the NetBIOS proxy function, a ELSA LANCOM Business can also route NetBIOS packets or respond locally as a proxy. As a result, it is now possible to economically link Microsoft Networks using the router function.

  • Page 95: Handling Of Netbios Packets

    An ELSA LANCOM Business can either route or spoof the NetBIOS packets to prevent the establishment of unnecessary connections: In the NetBIOS module, it is possible to specify the remote stations to which the name information should be transferred via NetBIOS to ensure the routing of those packets that are actually required.

  • Page 96: Which Preconditions Must Be Fulfilled

    Networks. If multiple Microsoft Networks are to be interconnected using routers, NetBIOS must be based on a routable protocol in the ELSA LANCOM Business, such as The routing of NetBIOS packets in the ELSA LANCOM Business is based on TCP/IP due to its superior filter mechanisms.
  • Page 97 Specify whether other users in the Microsoft Network should be allowed access to the printer and/or files of this workstation. All users intending to access shared resources must log on with their names and passwords when booting Windows. ELSA LANCOM Business...

  • Page 98: Linking Two Microsoft Networks Via Isdn

    The following steps must be performed for both sides of the connection. Set up both networks for a LAN-LAN interconnection via TCP/IP as described in the Workshop. We recommend using the convenient ELSA LANconfig wizard. Check the settings of the IP filter. This filter must capture all NetBIOS packets to be...
  • Page 99 DEFAULT route. This has been preset in the unit's factory defaults. Next, enter the remote station for routing via NetBIOS. Change over to the ELSA LANconfig 'NetBIOS' configuration section and create a new entry in the 'NetBIOS over IP Routing' table.

  • Page 100: Dial-Up Procedure For A Remote Access Station

    Accessing a Microsoft Network with a single computer via remote access can also be taken care of quickly. The ELSA LANCOM Business and the remote access computer must be prepared for network access as described in the Workshop. In this case as well, check the IP filters in the ELSA LANCOM Business (See 'Connecting two Windows networks via ISDN').
  • Page 101 The connection is not established automatically. RAS users must first establish a connection to the ELSA LANCOM Business via Dial-Up Networking. Once the connection has been established, RAS users can access computers in the...

  • Page 102: Ip Pooling For Dial-Up Access

    For example, faxes are sent by simulating an ISDN fax machine at the workstation. The PC uses LANCAPI to transfer the fax across the network to a ELSA LANCOM Business , which establishes the connection to the recipient via ISDN.
  • Page 103 Installing the LANCAPI client The LANCAPI is made up of two components, a server (in the ELSA LANCOM Business ) and a client (on the PCs). The LANCAPI client must be installed on those computers in the LAN that will be using the LANCAPI functions.
  • Page 104 LANCAPI ? Set the relevant parameters as follows: Start ELSA LANconfig which can be found in the 'ELSAlan' program group. Open the configuration of the router by double-clicking on the device name in the list and select the 'LANCAPI' section.
  • Page 105 Switch to the 'Availability' tab. Here you can determine how the ELSA LANCOM Business should respond if a connection is to be established via the LANCAPI (incoming...

  • Page 106: Elsa Capi Faxmodem

    For the LANCAPI , select the entry 'ISDN WAN Line 1'. ELSA CAPI Faxmodem The ELSA CAPI Faxmodem provides a Windows fax driver (Fax Class 1) as an interface between the ELSA LANCAPI and applications, permitting the use of standardfax programs with an ELSA LANCOM Business .

  • Page 107: Installation

    Operating modes and functions Installation The ELSA CAPI Faxmodem can be installed from the CD setup. Always install the ELSA CAPI Faxmodem together with the current version of ELSA LANCAPI . After restarting, the ELSA CAPI Faxmodem will be available to your system. Under Windows 95 or Windows...
  • Page 108 Next, decide how these rates and rate zones can be best organized in the ELSA LANCOM Business LCR table. A variety of approaches are possible: Obvious options for saving telephone charges can be entered directly: –...
  • Page 109 Setting up the least-cost router Two essential questions must be clarified with regard to configuring the least-cost router: Which operating modes of the ELSA LANCOM Business should the services of the least-cost router use? Which calls should be routed over which provider?
  • Page 110 (see also 'Time for the Selection' further below). Build the LCR table one step at a time and check your results. Open the ELSA LANmonitor, for example, and establish connections to the remote stations to be...
  • Page 111 Display). Time for the selection It goes without saying that the internal clock of the ELSA LANCOM Business must be set properly to ensure that the least-cost router correctly applies the information in the table. The router can also help itself in this respect as well, however: It can synchronize its internal clock with the time in the ISDN, either when switched on, or during each call establishment.
  • Page 112 Operating modes and functions ELSA LANCOM Business...

  • Page 113: Workshop

    Our development team is constantly seeking to incorporate new features into the software and to make the use of ELSA LANconfig even simpler. This may result in minor differences between the appearance of screens as depicted in the Workshop and their actual appearance in the software;...

  • Page 114: Which Device Are You Using

    Which device are you using? You can work through the tasks in Workshop described using a number of models from the ELSA LANCOM family. Any restrictions with regard to specific models are indicated by the corresponding symbols shown next to the text.

  • Page 115: Internet Access For All Pcs On The Lan

    ”hidden“ by IP masquerading behind the registered IP address of the router. This process has even more benefits: IP masquerading makes Internet access simple. Only one device needs to be configured. And the ELSA LANconfig setup wizards will even help you do this. IP masquerading makes Internet access cost-effective.
  • Page 116 4711000 Really easy access to the Internet using ELSA LANconfig and its wizards Various wizards have been put together in the ELSA LANconfig which make all the settings in the ELSA LANCOM software required to configure the ELSA LANCOM for...
  • Page 117 (here for example the preset DEFAULT layer) enables the router in the central office to call the routers at the ISP: cd Setup/WAN-module/Name-list ELSA LANCOM Business...
  • Page 118 '2'. Setting the option for IP masquerading to 'ON' hides all the computers in the LAN behind the router's address so that they will not appear on the Internet. ELSA LANCOM Business...

  • Page 119: Intranet With Its Own Web Server On The Internet

    What's left to do? Obviously the computers in the LAN will also need to know that the ELSA LANCOM is the gateway to the Internet. This will require the router's Intranet address being specified as the default gateway and DNS server for the workstation computers.
  • Page 120 The table below shows how all the important data are assigned as used in the example. We recommend that you create a table such as this for each application. It will assist ELSA LANCOM Business...
  • Page 121 A new entry in the name list ('Communication' configuration section, 'Remote sites' tab) with identification of the remote station and the layers to be used enables the router to establish a leased-line connection with the correct settings. It is not necessary to enter a subscriber number. ELSA LANCOM Business...
  • Page 122 (configuration area 'TCP/IP', 'Routing' tab) so that any packet destined for addresses which cannot be reached locally is routed into the Internet (DEFAULT route) to allow your company's employees to access the Internet. cd Setup/IP-router-module set IP-routing-table 255.255.255.255 0.0.0.0 leased- line connection 2 ON ELSA LANCOM Business...
  • Page 123 Internet. This will require the router's Intranet address being specified as the default gateway on the workstation computers. The IP address of the relevant server at the ISP is also identified as the DNS server. ELSA LANCOM Business...

  • Page 124: Lan To Lan Couplings

    When an employee starts up a browser on a workstation computer and enters a web address (ELSA, for instance), the DNS server specified in the operating system will try to determine the associated IP address. The router, being the Internet gateway, passes this request on to the ISP DNS server, which finally determines the IP address for this name (e.g.

  • Page 125: Networks Connected With The Ip Router

    An example of the task In this example the central office has six branches. A ”small“ router that connects to the ELSA LANCOM Business in the central office via ISDN dial-up connections is located in each of the branch offices.
  • Page 126 IP routing made simple with ELSA LANconfig and the wizards For the configuration on LAN to LAN coupling, there is a wizard in ELSA LANconfig which makes all required settings in the software for you and takes the peculiarities of TCP/IP networks into account.
  • Page 127 B1 and B2 hold times, the router automatically disconnects every connection if there is no data flow on this line for 20 seconds. Every network should bear its own telephone costs, therefore the call-back entry remains set to OFF: cd /Setup/WAN-module/Name-list ELSA LANCOM Business...
  • Page 128 If the connections to the branch networks should use specific B channels, to keep other channels free for RAS access, for example, create an entry for each remote station defining the permissible channels in the channel list of the central router. cd /Setup/WAN-module/Channel-list ELSA LANCOM Business...
  • Page 129 IP addresses and netmasks of all branches with the remote station (without IP masquerading!): Finally activate the IP router only, and the first ELSA LANCOM is ready for connection to the other networks.

  • Page 130: Networks Connected With The Ipx Router

    An example of the task In this example the central office has four branches. A ”small“ router that connects to the ELSA LANCOM Business in the central office via ISDN dial-up connections is located in each of the branch offices.
  • Page 131 Step by step: What settings are made in the routers? In the following configuration steps, beginning with the router in the central office, we show exactly the settings and provide information on the deviations in the other devices. ELSA LANCOM Business...
  • Page 132 (here for example the preset DEFAULT layer) enable the router in the central office to call the routers in the other branch ELSA LANCOM Business...
  • Page 133 /Setup/IPX-module/LAN-config set network 00000003 and 00000004 set Binding auto The bindings, e.g. 'SNAP', and network numbers must be explicitly stated for the branch office networks in Glasgow and London, as these networks do not have a server: ELSA LANCOM Business...

  • Page 134: Remote Access

    The callback function uses the names and call numbers entered to give the open sesame to specified users only. And telephone charges are calculated at head office, simplifying the billing process. ELSA LANCOM Business...

  • Page 135: Remote Access With Tcp/Ip

    Networking using the TCP/IP protocol. The routing should also support NetBIOS packets to ensure that field staff members can also take advantage of Windows network file and printer sharing. A ELSA LANCOM Business is installed on the company's LAN to call back the workstation computers on demand.
  • Page 136 Workshop Remote access made simple with ELSA LANconfig and its wizards For the configuration of individual access accounts, there is a wizard in ELSA LANconfig which makes all required settings in the software for you and takes the peculiarities of TCP/IP networks into account.
  • Page 137 You must still clarify the addresses. To enable the router router in its own TCP/IP network to be found, it needs a free IP address from the company network. It receives this when the Intranet address and associated netmask are entered: cd /Setup/TCP-IP-module set Intranet address 10.1.100.100 ELSA LANCOM Business...
  • Page 138 – New connection in Dial-Up Networking with the call number of the router – Terminal adapter or ISDN card set to PPPHDLC – PPP selected as the Dial-Up server type, 'Enable software compression' and 'Require data encryption' unchecked ELSA LANCOM Business...
  • Page 139 Workshop – TCP/IP selected as the network protocol – Assignment of IP address and name server address checked, 'IP header compression' unchecked ELSA LANCOM Business...

  • Page 140: The Least-Cost Router

    In this chapter we will show you an example of how you can make significant savings with regard to connect charges. Once it has been set up, the least-cost router automatically selects the most economical provider and attempts to establish the connection using that provider's network. ELSA LANCOM Business...
  • Page 141 Business The two employees in this office use the following functions of the ELSA LANCOM Business : They were able to setup their access to the Internet through a provider in a flash with the ELSA LANconfig and its wizards.
  • Page 142 Workshop Configuring the least-cost router with the ELSA LANconfig With the following steps you can turn your ELSA LANCOM Business into a bargain hunter: Open up the configuration of the device in ELSA LANconfig by double-clicking the entry in the device list and select the 'least-cost router' configuration area.
  • Page 143 0:00 am – 11:59 02429 Every day 0:00 am – 11:59 02465 Every day 0:00 am – 11:59 02423 Every day 0:00 am – 11:59 02471 Every day 0:00 am – 11:59 02456 Every day 0:00 am – 11:59 ELSA LANCOM Business...
  • Page 144 That's it! Now you have configured your least-cost router very precisely. Initially, you can use ELSA LANmonitor to check if the LCR is doing its job properly and keep an eye on your telephone bill at the end of the month. You may find some additional prefixes you could add to the LCR table if you receive itemized bills.
  • Page 145 '01090' and '01070' are tried. If they are also not available, the connection will be made via the normal telephone company. Create all the entries in accordance with this example, using the tables in ELSA LANconfig as a reference. ELSA LANCOM Business...
  • Page 146 Workshop ELSA LANCOM Business...

  • Page 147: Appendix

    Evaluation of remote-side subscriber number; PAP and CHAP, PPP authenti- functions: cation mechanisms; automatic firewall callback via CLIP, PPP or ELSA pro- tocol; filter options in IP, IPX and bridge mode; protection of configuration using access lists and passwords, recording of most recent connection information, IP masquerading, encryption in development.

  • Page 148: Pin Assignments

    Accessories: Power adapter, ISDN line connection cable, cable for outband interface, twisted-pair cable (CAT-5), detailed documentation and ELSA LANCOM CD-ROM Software: ELSA LANconfig , ELSA LANmonitor , ELSA LANCAPI , TFTP client, ELSA-RVS-COM office communications suite, ELSA-ZOC terminal pro- gram, LapLink for Windows remote maintenance software, CompuServe...

  • Page 149: Warranty Conditions

    Appendix Warranty conditions The ELSA AG warranty, valid as of June 01, 1998, is given to purchasers of ELSA products in addition to the warranty conditions provided by law and in accordance with the following conditions: Warranty coverage The warranty covers the equipment delivered and all its parts. Parts will, at our sole discretion, be replaced or repaired free of charge if, despite proven proper handling and adherence to the operating instructions, these parts became defective due to fabrication and/or material defects.
  • Page 150 ELSA Monitor, damage to the cathode ray tube (CRT) has been caused especially by mechanical load (e.g. from shock to the pitch mask assembly or damage to the glass tube), by...

  • Page 151: Declaration Of Conformity

    DECLARATION OF CONFORMITY Diese Erklärung gilt für folgendes Erzeugnis: This declaration is valid for the following product: Geräteart: ISDN Router Type of Device: Typenbezeichnung: ELSA Lancom Business Product Name: EG-Baumusterprüfbescheinigungs Nr.: D801080L Registration No.: Benannte Stelle: CETECOM ICT Services GmbH Notified Body: Hiermit wird bestätigt, daß...
  • Page 152 Appendix ELSA LANCOM Business...

  • Page 153: Glossary

    B-chan. – ISDN data transfer channel (64 CLIP – Caller Line Identification Parameter = kbps); an ISDN basic rate interface has one D Subscriber number of the caller that can be channel and two B channels. transmitted in the ISDN. ELSA LANCOM Business...
  • Page 154 DNS server. Firewall – Mechanism to protect intranets Domain – A domain is a logically limited from unauthorized access; the ELSA LANCOM section of a network such as corporate net- supports IP masquerading, port filtering and work or an Internet provider.
  • Page 155 No- vell networks. Line on demand – Establishment of a con- nection as required. In the ELSA LANCOM , IPX address – Consists of the ­ node ID, the receipt of data packets from the LAN de- IPX network address and socket;...
  • Page 156 Node – A node is a device connected to a MPPC – Microsoft Point-to-Point Compres- network that either sends or receives data. sion; data compression process (currently not These can be individual ELSA LANCOMs , supported by the ELSA LANCOM ). workstations, servers or printers shared by network participants.
  • Page 157 (in this case, Netware IPX). (such as HP Openview or Cabletron Spec- RoundRobin – A process for dialing up a log- trum); not specific to any manufacturer; ELSA ical remote station (e.g. company headquar- LANCOM supports SNMP Version 1. ters) using a variety of numbers for different Socket –...
  • Page 158 TICS – System time unit of the ELSA LAN- Signaling channel – ISDN signaling chan- nel (also ­D channel), for the transfer of con- trol information (e.g. the signaling of an Transceiver –...
  • Page 159 It is supported by many standard termi- nal programs, but has since been superseded by more modern high-performance protocols such as ZModem. Y connection – Simultaneous connection to two different remote stations, each using one B channel of the same ISDN S connection. ELSA LANCOM Business...
  • Page 160 Glossary ELSA LANCOM Business...

  • Page 161: Index

    Charge monitoring ........4 Charge units ..........37 B channel ............30 Charges ........37, 97, R50, R55 connection status ........4 Charging information ....... R41 Backoff ............R53 Charging unit ..........R41 BACP .............3 CLI ............36, R46 Barring ............34 ELSA LANCOM Business...
  • Page 162 Data transmission in an IPX network ..60 Dynamic Host Configuration Protocol ..75 Days of the week ........98 Dynamic IP routing table ......R67 DDI numbers ..........R43 Dynamic routing ......... 65 Default layer ..........18 Dynamic short-hold ........R41 ELSA LANCOM Business...
  • Page 163 Index Flash ROM ..........21 ELSA CAPI Faxmodem ........6 Flash ROM memory ........5 ELSA-RVS-COM ..........2 ELSA-ZOC .............2 Gateway ......... 37, 74, 77 E-mail ............2 Group table ..........R73 Encaps ............R43 Groups ............85 End address ..........76 GSM ............. 7 End-address pool ........R70...
  • Page 164 IPX watchdog ..........R50 Limiting charges ......... 37 IPX watchdogs ..........64 Line display ..........30 ISDN cable ............3 Line management ........ 2, 114 ISDN dial-up connections ......37 Link status LED ........... 11 ISDN layers ..........R43 Local calls ..........99 ELSA LANCOM Business...
  • Page 165 Number list ..........R46 Name information ........85 Name list ..........R41 Objects ............25 Name server ..........R59 Office communications ......92 Name verification ........R46 Online banking ..........1 Names ............85 Online media ..........15 Naming IP addresses ........59 ELSA LANCOM Business...
  • Page 166 SAP services ..........R56 PPP negotiation ........18, R58 SAP tables ..........61 Prefix ............97 Scaling ............. R51 Preselection ..........97 Scope ID ........... R72 Priority control ..........96 Scopes ............85 Prohibited address ranges ......R62 Script list ..........R46, R92 ELSA LANCOM Business...
  • Page 167 Special prefixes ..........99 Table SAP ..........R55 Speed ............R44 TCP ...........R64, R68 Split horizon ..........62 TCP aging minute(s) ......... R60 Spoofing .......... R55, R57 TCP max. connections ......R60 SPX watchdog ..........R51 TCP/IP ........... 15, 64 SPX watchdogs ...........64 ELSA LANCOM Business...
  • Page 168 Wildcards ........... 84 ICMP ............R103 Windows Internet Name Service Server ... 85 IP-RIP .............R102 Windows network ........78 IP-Rt............R101 Windows networks ........6 IPX watchdogs ........R100 WINS address ..........78 IPX-NetBIOS ..........R101 WINS server ..........85 IPX-Rt............R98 ELSA LANCOM Business...
  • Page 169 Index WWW ............37 X.75 data protection .........R44 X.75 secured format .........R44 XModem .............22 Y connection ..........57 Y connections ...........R40 ELSA LANCOM Business...
  • Page 170 Index ELSA LANCOM Business...

  • Page 171: Description Of The Menu Options (On Cd Only)

    You can access the menus when configuring via Telnet or terminal programs and via SNMP (also see 'Configuration Modes'). When configuring with ELSA LANconfig , you are provided with an integrated help system that gives you brief descriptions of the individual parameters.
  • Page 172 IP-router-module IPX-statistics SNMP-module TCP-IP-statistics DHCP-module IP-router-statistics NetBIOS-module Config-statistics Config-module Queue-statistics LANCAPI-module Conn.-statistics LCR-module Info-connection DNS module Layer-connection Time-module Call-info-table Firmware Remote-statistics Version-table -bus Table-firmsafe Channel-statistics Mode-firmsafe Time-statistics Timeout-firmesafe LCR-statistics Test-firmware Delete-values Firmware-upload Other Manual-dialing Boot-system Reset-system Upload-system ELSA LANCOM Business...

  • Page 173: Status

    Statistics on the last 100 connections -bus Status of the S interface Channel-statistics Information of the status of the individual channels. Time-statistics Time module information LCR-statistics Least-cost router information Delete-values Deletes all values except tables with substatistics. ELSA LANCOM Business...

  • Page 174: Display And Keyboard

    In the event of changes to the status of a channel, the table will jump to the current entry if no cursor key has been used for at least 5 seconds. The status of the channel is displayed in plain text, e.g.: CH11: Connection LC_PPP CH12: Remote station LC_PPP not responding ELSA LANCOM Business...

  • Page 175: Status/Connection

    The time can be read from the ISDN (ISDN time, see also Setup/time module) or set manually (with the 'time' command). Status/Operating-time The operating time of the router since it was last started is displayed here in days hours, minutes and seconds. ELSA LANCOM Business...

  • Page 176: Status/Wan-Statistics

    Below is a detailed description of the meaning of each field: Designates the associated channel. CRx-bytes Number of bytes received (compressed) Rx-bytes Number of bytes received (uncompressed) Tx-bytes Number of bytes sent (uncompressed) CTx-bytes Number of bytes sent (compressed) ELSA LANCOM Business...
  • Page 177 Stack-error Number of transmission errors that occurred while sending Tx-error Number of stack errors for data received. Stack errors are caused when frames are received that cannot be assigned to an internal processing procedure (e.g. IP router). ELSA LANCOM Business...

  • Page 178: Status/Lan-Statistics

    Display of correct Ethernet connection (data transfer possible). Corresponds to the 'Link' LED on the device. Negotiation done The negotiation of the transfer mode between the router and the remote station is complete. This is only relevant if Setup/LAN/Connection is set to 'Auto'. ELSA LANCOM Business...

  • Page 179: Status/Ppp-Statistics

    Statistics relating to the status of PPP protocol negotiation for each interface LCP-statistics Displays PPP/LCP statistics PAP-statistics Displays PPP/PAP statistics CHAP-statistics Displays PPP/CHAP statistics CBCP-statistics Displays PPP/CBCP statistics IPXCP-statistics Displays PPP/IPXCP statistics IPCP-statistics Displays PPP/IPCP statistics CCP-statistics Displays PPP/CCP statistics ML-statistics Displays PPP/ML statistics ELSA LANCOM Business...
  • Page 180 LCP frames exchanged during PPP negotiation are recorded in statistics and displayed by type and quantity. If the LCP does not change to the OPEN state for a connection, these statistical values provide information on errors that occurred during the initial phase of ELSA LANCOM Business...
  • Page 181 (refer also to Chapter 'Point-to-Point Protocol'). Below is a detailed description of the meanings of the parameters for these statistics: Rx-discarded Number of PAP packets discarded Rx-request Number of PAP request packets received Rx-success Number of PAP success packets received ELSA LANCOM Business...
  • Page 182 Number of PAP failure packets received Tx-retry Number of times PAP request packets resent Tx-request Number of PAP request packets sent Tx-success Number of PAP success packets sent Tx-failure Number of PAP failure packets sent Delete-values Deletes PAP statistics ELSA LANCOM Business...
  • Page 183 Number of configure request packets sent for IPXCP Tx-config-ack. Number of configure acknowledge packets sent for IPXCP Tx-config-nak. Number of configure negative acknowledge packets sent Tx-config-reject Number of configure reject packets sent for IPXCP Tx-terminate- Number of terminate request packets sent for IPXCP request ELSA LANCOM Business...
  • Page 184 Number of CBCP packets discarded Rx-acknowledge Number of CBCP acknowledge packets received Tx-request Number of CBCP request packets sent Tx-response Number of CBCP response packets sent TX-acknowledge Number of CBCP acknowledge packets sent Request-discarded Number of CBCP request packets discarded ELSA LANCOM Business...
  • Page 185 Number of CCP queries sent after releasing the compression. Tx-terminate-ack. Number of CCP confirmations sent for releasing the compression. Number of CCP queries rejected because the ELSA LANCOM does not wish Tx-code-reject to use compression (by layer list settings). Tx-reset-request Number of CCP queries sent after synchronizing the compression (e.g.
  • Page 186 The two submenus have the same layout: /Rx- and Tx-options Display Information on packet sizes, control characters, security procedures and callback IPXCP Information on addresses and routing procedures in the IPX network IPCP Information on addresses in the IP network ELSA LANCOM Business...

  • Page 187: Status/Ipx-Statistics

    The routing protocol in use is given here (RIP/SAP or nothing), in the Rx what the method remote station has assigned to us and in the Tx the one that the ELSA LANCOM assigns to the remote station. Finally, IPCP has the negotiated IP options, again separated according to the channel:...
  • Page 188 Propagate-LAN-filters Number of IPX propagated packets from the LAN that were recei- ved/filtered Propagate-LAN-tx Number of IPX propagated packets sent to the LAN Propagate-LAN-socket-errors Number of IPX propagated packets from the LAN filtered by sok- ket filter ELSA LANCOM Business...
  • Page 189 Number of SAP packets with defective content received from the LAN SAP-LAN-tx Number of SAP packets sent to the LAN SAP-WAN-rx Number of SAP packets received from the WAN SAP-WAN-errors Number of SAP packets with defective content received from the WAN ELSA LANCOM Business...
  • Page 190 Number of packets from internal modules to the IPX router Networks Table of networks in the IPX routing table with node IDs Establish-table Table of the last 20 packets that required a connection Delete-values Deletes IPX router statistics ELSA LANCOM Business...
  • Page 191 WORK), the binding that was detected is displayed here. Propagate Filter flag for IPX type 20 (propagated) frames. For remote WAN stations, this cor- responds to the entry in the routing table. For the LAN, a route is always entered here. ELSA LANCOM Business...

  • Page 192: Status/Tcp-Ip-Statistics

    Number of ARP requests and responses received from the WAN ARP-WAN-tx Number of ARP requests and responses sent to the WAN ARP-WAN-errors Number of ARP requests incorrectly received from the WAN Table-ARP Displays ARP table Delete-values Deletes ARP statistics ELSA LANCOM Business...
  • Page 193 Number of ICMP packets received from the WAN ICMP-WAN-tx Number of ICMP packets sent to the WAN ICMP-WAN-checksum-errors Number of ICMP packets incorrectly received from the WAN ICMP-WAN-service-errors Number of non-supported ICMP packets received from the WAN Delete-values Deletes ICMP statistics ELSA LANCOM Business...
  • Page 194 Number of TFTP packets repeatedly sent to the LAN TFTP-LAN-connections Number of TFTP connections established to the LAN TFTP-WAN-rx Number of TFTP packets received from the WAN TFTP-WAN-rx-read-request Number of TFTP read requests received from the WAN ELSA LANCOM Business...
  • Page 195 Number of DHCP packets received that were not intended for this server DHCP-assigned Number of addresses currently assigned DHCP-MAC-conflicts Number of assignments rejected because IP addresses were in use Table-DHCP Table containing assignments of IP addresses to MAC addresses Delete-values Deletes DHCP statistics ELSA LANCOM Business...
  • Page 196 NBNS query (P node behavior). W-Nodes This type of node is not permissible according to RFC, but was introduced nevertheless by Microsoft as a hybrid node. ELSA LANCOM Business...
  • Page 197 Address of the computer that last requested this name This list is sorted according to the frequency of requests. When the table is full, the names that have not been requested for the longest period will be deleted to make room for new entries. ELSA LANCOM Business...

  • Page 198: Status/Ip-Router-Statistics

    An IP router establish table might have the following appearance: Time Dest.-address Src.-address Prot. D-port S-port 1T; 16:45:01 192.120.131.40 192.120.130.10 4711 1T; 10:45:10 192.120.131.50 192.120.130.10 8123 ELSA LANCOM Business...
  • Page 199 The associated RIP table contains all of the routes learned from the network. The router itself maintains this table; you cannot modify it manually. An IP-RIP table might have the following appearance: IP-address IP-netmask Time Distance Router 223.245.254.0 255.255.255.0 192.38.9.100 223.245.257.0 255.255.255.0 192.38.9.200 ELSA LANCOM Business...

  • Page 200: Status/Config-Statistics

    Number of login attempts while the login lock was active Delete-values Deletes the config statistics Status/Queue-statistics These statistics allow you to observe the flow of the individual packets through the various modules of the ELSA LANCOM . /Queue-statistics Statistics on the queue LAN-heap-packets Number of buffers available...

  • Page 201: Status/Connection-Statistics

    For each available interface, the Status/Conn.-statistics menu option provides statistics on the connections established via this interface. The table maintained here has the following layout: Connection Active Passive Errors Con.-Time Charge Ch01 No connection Ch02 No connection ELSA LANCOM Business...

  • Page 202: Status/Info-Connection

    Connection, Callback, Bundle and Reserved. The Bundle status is indicated in the display ELSA LANCOM Business 4100 by the addition of a “/2“ in columns 15 and 16 of the associated display line. Bundle is displayed for the second interface either when a bundle connection has been activated via the first interface or when a leased- line connection with two B channels has been set.

  • Page 203: Status/Layer-Connection

    Time when the call came. Either the device operating time or the system time of the ISDN is displayed (if made available from the ISDN terminal). Designates the associated interface. CLIP-Caller Call number (CLIP) of the caller ELSA LANCOM Business...

  • Page 204: Status/Remote-Statistics

    /SETUP/WAN-MODULE/ROUTER-INTERFACE-LIST/ MSN-EAZ in order for a call to be correctly answered from an external station. Status/Remote-statistics This table shows the last hundred connections of the ELSA LANCOMs with information on the remote station. The table has the following layout: Conn.-start...

  • Page 205: Status/S0-Bus

    Status/Channel-statistics This table shows information on the current status of the two B channels. information from this table is primarily used for output via ELSA LANmonitor . Therefore, some values are shown simply as bits with no further explanation. The table has the following layout:...

  • Page 206: Status/Time-Statistics

    PBX possibly also the caller's name, etc. Status/Time-statistics This menu has information on the current time in the device and on the path over which the ELSA LANCOM Business has obtained the time. The menu has the following layout: /Time statistics...

  • Page 207: Status/Lcr-Statistics

    Description of the menu options Status/LCR-statistics This menu has information on the current time in the device and on the path over which the ELSA LANCOM Business has obtained the time. The menu has the following layout: /LCR-statistics Least-cost router statistics...

  • Page 208: Setup/Wan-Module

    System configuration DHCP-module DHCP server settings NetBIOS-module Settings for the NetBIOS proxy Config-module Configuration module settings LANCAPI-module ELSA LANCAPI settings LCR-module Least-cost router settings DNS module DNS server settings Time-module Time module settings Name Here you can enter the device name (maximum 16 characters). The set of characters available includes uppercase and lowercase letters as well as some special characters.
  • Page 209 Global dialing prefix for all modules of the devices. The digits entered here (maximum 8) are automatically prefixed to the selected call number in every call. Use this prefix when, for example, the router is connected to a PBX. ELSA LANCOM Business...
  • Page 210 Description of the menu options This table contains the interface settings that apply to the router modules of the ELSA Router- interface-list LANCOM . MSN/EAZ CLIP 123456 Below is a detailed description of the meaning of each field: Designates the associated interface.
  • Page 211 If charging information is transmitted over the ISDN network during the connec- tion, the ELSA LANCOM will make full use of every charging unit and will only terminate the connection just before the beginning of the next unit. This function is also referred to as dynamic short-hold.
  • Page 212 This means that the caller is not charged. Windows NT) If the remote station is not specified in the number list, a callback will be negotiated in a protocol negotiation (ELSA or PPP). A charge of one unit is incurred for this. Name This setting forces a protocol negotiation.
  • Page 213 This entry is also used when a group 0 leased-line connection is established. If the DEFAULT entry is not present, a B channel protocol developed by ELSA is used as the default. The user may delete or change any of the layers predefined here.
  • Page 214 X.75 data protection. L2-Opt. The L2-opt. enables the setting of an option for the data transfer setting under Lay-2 with an additional ELSA LANCOM . none No data compression or channel bundling is performed.
  • Page 215 CHAP ******* 0 ELSA Not all parameters can be reached via the telnet configuration. Use ELSA LANconfig so far as possible. Below is a detailed description of the meaning of each field: Device-name In the Device-name column, you can enter the name with which the remote station...
  • Page 216 Some Internet providers (e.g. CompuServe) conduct a script-controlled log-on procedure before a PPP negotiation. In order to be able to establish this type of connection as well, a simple script processing procedure is also implemented in the ELSA LANCOM (see 'Script processing').
  • Page 217 'No remote station' is displayed, because a name cannot be entered here. Therefore, this function must not be used from the keyboard of the ELSA LANCOM . If you attempt to establish a connection to a logical remote station for which no call number is specified in the name list, the 'No number' error message is displayed.

  • Page 218: Setup/Lan-Module

    Default setting; enables the Autosense function of the network chip. This auto- matically sets the router to the port in use without requiring manual configuration of this item. 10BTX 10BASE-T in half-duplex mode FD10BTX 10BASE-T in full-duplex mode 100BTX 100BASE-T in half-duplex mode FD100BTX 100BASE-T in full-duplex mode ELSA LANCOM Business...

  • Page 219: Setup/Ipx-Module

    This option allows you to display the router’s own Ethernet address. The value displayed here was set at the factory and cannot be changed. The Ethernet address is displayed as a 12-digit hexadecimal value, with the first six digits '00a057' standing for an ELSA device.
  • Page 220 This setting is especially economical but steps must be taken in the server to ensure that users are logged off at specific times in order to prevent the usage of too many user licenses. ELSA LANCOM Business...
  • Page 221 In addition, in the event that all channels are busy, the routes that are no longer available will be propagated as 'DOWN'. Because one or more broadcasts are ELSA LANCOM Business...
  • Page 222 Route, the packets are forwarded to all currently available remote stations, i.e., there must be a connection to the remote station, or there must be at least one channel available for establishing a connection the remote station. ELSA LANCOM Business...
  • Page 223 The flags can be used to determine where these networks are located with relation to the particular router (local or remote). The entry direct indicates whether this network is directly the local or remote network. DOWN indicates ELSA LANCOM Business...
  • Page 224 This option allows you to set the number of times the RIP table will be updated until an entry in the RIP table ages, i.e. until the route recorded there is marked as 'not reachable (down)'. You can enter a value from 1 to 60; the default value is 3. ELSA LANCOM Business...
  • Page 225 512 entries. It is sorted first by service type and then by server name. A SAP table might, for example, have the following appearance: Type Server-name Network Node-ID Socket Hops Time Flags 0004 000000c1 000000000001 0451 local 0047 00000001 0000c0123456 8060 local 0107 000000c1 000000000001 8104 local ELSA LANCOM Business...
  • Page 226 This option allows you to set the number of times the SAP table will be updated until an entry in the SAP table ages, i.e. until the service recorded there is marked as “not reachable (down)”. You can enter a value from 1 to 60; the default value is 3. ELSA LANCOM Business...

  • Page 227: Setup/Tcp-Ip-Module

    ARP table for mapping an IP address onto a MAC address ARP-aging-min. Dwell time for entries in the ARP table TCP-aging-min. Time limit for configuration connections that are inactive TCP-max.-conn. Max. number of simultaneous configuration connections to the ELSA LANCOM ELSA LANCOM Business...
  • Page 228 (terminal program). If both an IP address and an Intranet address have been entered, the network defined by an IP address and IP network mask must contain only workstations (i.e. no routers). ELSA LANCOM Business...
  • Page 229 Any requests from devices with different IP addresses are ignored. If a complete network has access enabled to an ELSA LANCOM , this can be done as follows for a class C network:...
  • Page 230 Possible settings are from 1 to 99 minutes; The default setting is 15 minutes. TCP-max.-conn. The maximum number of allowable connections possible at the same time can be set here. DEFAULT setting is '0', meaning the same as “any number“. ELSA LANCOM Business...

  • Page 231: Setup/Ip-Router-Module

    Static: IP masquerading is switched on and functions with assignment of a static IP address previously assigned by the remote station. In this procedure the router queries the IP address entered under 'Setup/TCP-IP-module' at the remote station ELSA LANCOM Business...
  • Page 232 – The local network address is 192.120.130.0. – Three terminal units must be available via proxy ARP with the IP addresses 192.120.130.10, 192.120.130.11 and 192.120.130.12 via an ELSA LANCOM 'Leeds'. – Two destination networks 192.120.131.0 and 192.120.132.0 can be accessed by the remote stations 'GLASGOW' and 'LONDON'.
  • Page 233 Type 255.255.255.255 0.0.0.0 Alway s-filt. The table fields have the following meaning: Idx. Unique index. This entry is required to enable the filters to be distinguished. The index may be four characters long and selected as desired. ELSA LANCOM Business...
  • Page 234 The WAN port filters are defined in a table similar to the LAN filter table: Idx. D-st. D-end S-st. S-end Dst.-address Dst-netmask Prot 0.0.0.0 0.0.0.0 The fields in the table have the same meaning as in the LAN filter table, with the following exception: Dst-address, Dst-netmask ELSA LANCOM Business...
  • Page 235 End of the address pool for IP pooling. pool Setup/IP-router-module/Routing-method The router offers two methods for IP routing, which can be separately set for IP and ICMP packets. Both methods are based on the evaluation of the field 'Type-of-service' in the IP header. ELSA LANCOM Business...
  • Page 236 RIP-1: RIP-1 and RIP-2 packets are received but only RIP-1 packets are sent. R1-comp: RIP-1 and RIP-2 packets are received. RIP-2 packets are sent as an IP broadcast. RIP-2: Same as R1-comp except that all RIP packets are sent to the IP multicast address 224.0.0.9. ELSA LANCOM Business...
  • Page 237 The use of inverse masquerading makes 'services' (e.g. a file server) selectively visible in the Internet by entering specified ports in the service table in the IP network, while all other services and computers remain invisible from the local network (see also 'IP Masquerading (NAT, PAT)'). ELSA LANCOM Business...
  • Page 238 The different columns have the following meaning: Intranet-addr.: IP address of the computer in the local network S-port: Source port for this entry Protocol: Protocol used (TCP/UDP/ICMP) Timeout: Time in seconds until the entry is removed from the table ELSA LANCOM Business...

  • Page 239: Setup/Snmp-Module

    This command logs on applications with the router to retain targeted trap information. monitor The ELSA LANmonitor , for example, queries the channel statistics in this way and converts them to a graphic display (under Windows). In principle, any SNMP manager can use this command to obtain information from the router.

  • Page 240: Setup/Dhcp-Module

    Description of the menu options This entry indicates, for example, that an ELSA LANmonitor has logged on to the router. Setup/DHCP-module This menu allows you to enter settings for the DHCP server. The menu has the following layout: /DHCP-server-module DHCP server settings...
  • Page 241 The 'Type' field specifies how the address was assigned. This field can assume the following values: – new: The computer has made its initial request. The DHCP server verifies the uniqueness of the address that is to be assigned to the computer. ELSA LANCOM Business...

  • Page 242: Setup/Netbios-Module

    All remote stations that are to provide or receive NetBIOS information must be entered in the remote-table. When the NetBIOS module is switched on, NetBIOS packets from remote stations other than those specified will be rejected automatically. The remote- table has the following structure: Name Type GLASGOW Router or workstation ELSA LANCOM Business...
  • Page 243 0x0004 This identifies an entry that still needs to be transferred. 0x0008 This identifies an entry that is queued for deletion, i.e. the name has not yet been refreshed after the establishment of a connection. 0x0010 Reserved ELSA LANCOM Business...

  • Page 244: Setup/Config-Module

    Switch for configuring from the LAN side WAN-config Switch for configuring from the WAN side Password-required Password required on/off if there is no password Farconfig-(EAZ-MSN) Subscriber number for remote configuration via PPP Maximum-connections Maximum number of simultaneous connections ELSA LANCOM Business...
  • Page 245 The default value is 5. A lower value may cause the log-in block to be activated with only one access on an older ELSA LANconfig! In this case obtain an updated ELSA LANconfig version over our online media.

  • Page 246: Setup/ Lancapi -Module

    The priority for a port controls the option for breaking outgoing connections via the LANCAPI router connections. Option '1' does not break router connections, the setting '2' breaks only auxiliary connections of a router connection with channel bundling, the selection '3' also breaks main channels of a router connection. ELSA LANCOM Business...

  • Page 247: Setup/Lcr-Module

    '02' between one and twelve o'clock to the provider with the network identification number '01030'. If this number is busy, the network identification numbers '01090' and '01070' will be attempted. If they are also not available, the connection will be made via the normal telephone company. ELSA LANCOM Business...

  • Page 248: Setup/Dns-Module

    64 entries Leasetime Specifies the name validity information to be given to a requesting computer. Default: 2000 DNS-table The DNS table contains a simple association of local names to IP addresses. The table is sorted alphabetically by names. ELSA LANCOM Business...

  • Page 249: Setup/Time-Module

    The least-cost router in the device requires correct time information to calculate the call number diversions via call-by-call provider. Precise time information is also desirable for some statistics. The time may be set manually (with the 'time' command) or automatically read from the ISDN network. ELSA LANCOM Business...

  • Page 250: Firmware

    Time in minutes required to test new firmware Test-firmware Tests the inactive firmware Firmware-upload Initiates a firmware upload Version table The version table displays the firmware version and serial number of the device. Module Version Serial-number LANCOM Business 4100 1.60.0012 / 30.06.1999 8427.000.020 ELSA LANCOM Business...
  • Page 251 'manual': The third option allows you to set a period (Timeout firmsafe) beforehand for testing the new firmware. The device will start with the new firmware and wait for the preset period until the loaded firmware is manually activated and therefore becomes permanently effective. ELSA LANCOM Business...

  • Page 252: Other

    This option starts a firmware upload (refer to chapter 'How to set up new software'). The flash ROM technology permits flexible and service-friendly handling of the system software by allowing different firmware versions to be read in. It also allows devices can be retrofitted for all future options. ELSA LANCOM Business...

  • Page 253: Novell Sap Numbers (On Cd Only)

    Console 002e ARCserve 5.0 / Palindrome 010f Novell SNA Gateway Backup Director 4.x (PDB4) 0111 Test Server 0045 DI3270 Gateway 0112 Print Server (HP) 0047 Advertising Print Server 0114 CSA MUX (f/Communicati- 004a NetBlazer Modems ons Executive) ELSA LANCOM Business...
  • Page 254 Banyan ENS for Netware Cli- ent NLM 0175 Compaq 0304 Novell SAA Gateway 0180 XTree Server or XTree Tools 0308 COM or VERMED 1 018A NASI services broadcast ser- ver (Novell) 030a Galacticomm's Worldgroup Server 01b0 GARP Gateway (net research) ELSA LANCOM Business...
  • Page 255 Microsoft Internet Informa- 1037 040D LVERRMAN Running on a tion Server Novell Server 1900 076C Xerox 1038 040E LVLIC Running on a Novell Server 1947 079b Shiva LanRover/E 115 1044 0414 Kyocera 1958 079c Shiva LanRover/T 115 ELSA LANCOM Business...
  • Page 256 Ocean Isle Reachout Remote Control 61727 f11f Site Lock Metering VAP/NLM 61951 f1ff Site Lock 62723 f503 Microsoft SQL Server 63749 f905 IBM Time and Place/2 appli- cation 64507 fbfb TopCall III fax server 65535 ffff Any Service or Wildcard ELSA LANCOM Business...

  • Page 257: Tcp/Ip Ports (On Cd Only)

    NeWS domain sgmp nameserver tcprepo nameserver snmp snmp-trap bootp print-srv tftp vmnet load finger vmnet0 ELSA LANCOM Business...
  • Page 258 10001 monitor poker 10002 garcon rscs2 10002 maitrd gateway 10003 busboy rscs3 10003 acctmaster remp 10004 acctslave rscs4 10004 acct rscs5 10005 acctlogin rscs6 10006 acctprinter rscs7 10007 elcsd rscs8 10008 acctinfo rscs9 10009 acctslave2 rscsa 10010 ELSA LANCOM Business...
  • Page 259 TCP/IP ports Capab. Port no. Protocol rscsb 10011 qmaster 10012 qmaster 10012 ELSA LANCOM Business...
  • Page 260 TCP/IP ports ELSA LANCOM Business...

  • Page 261: Elsa Lancom Business Internal (On Cd Only)

    If there is no user name in the PPP table, the device name of the ELSA LANCOM is forwarded as the user name. Once the script is complete, a PPP negotiation is started or the login procedure is concluded.

  • Page 262: The Script List

    Script CSERVE#1 <>[Host]<CIS>[User] CSERVE#2 $U[Password]$P[PPP]$C In the ELSA LANconfig the script list is on the 'Communication' tab. CompuServe select The settings required for selection on the CompuServe network via X.75, asynchronous PPP and script control with an example. Layer list: WAN-layer Encaps.

  • Page 263: Online Trace Outputs

    General With so-called 'online trace outputs' (control outputs) the user can receive information on internal processes of a working ELSA LANCOM . Such information can aid in finding erroneous configurations easily and securely, both from ELSA LANCOM and from other devices connected with an ELSA LANCOM .

  • Page 264: Control Of Trace Outputs

    ELSA LANCOM Business internal The online trace outputs are controlled by a newly implemented command in the remote configuration, which is evaluated by the command interpreter and gives a direct acknowledgment of the settings that have been made to the user. Changes to these settings are effective immediately and generate or suppress the corresponding outputs directly.

  • Page 265: Examples For Control Of Trace Outputs

    Activates all trace outputs, but deactivates outputs from the ICMP protocol. trace ppp elsa Shows the status of the PPP and ELSA trace outputs. trace # ipx-rt display Toggles the trace outputs of the IPX router and the display out- puts.
  • Page 266 Display all online trace outputs Display Display 'status' and 'error' Protocol Display 'ELSA', 'PPP' and 'SCRPT' TCP-IP Display 'IP-Rt.', 'IP-RIP', 'ICMP', 'ARP' and 'IP-MASQ' IPX-SPX Display 'IPX-Rt.', 'RIP', 'SAP', 'IPX-Wd.', 'SPX-Wd.' and 'NetBIOS'...
  • Page 267 Ch01: No response The remote station dialed did not react to the call. Online trace'PPP' The point-to-point protocol consists of a collection of subprotocols, of which ELSA LANCOM detects and manages the following: The link control protocol The password authentication protocol...
  • Page 268 The IPX router has received a frame from an internal process (in this case from the entity of the routing information protocol) whose target address is assigned to a logical remote station (ELSA.SUP.TEST) and therefore is sent to a WAN interface. LAN RX...
  • Page 269 ELSA LANCOM Business internal SrcAddr: 00000001 0123456789ab 0455 Filter The IPX router has received a NetBIOS frame (IPX-socket 455) from the local network, which is to be forwarded as broadcast ffffffffffff to all stations in network 00000001. Because a filter has been set on the socket, the frame is rejected by the router.
  • Page 270 SrcAddr: 00000002 00a057123456 0451 Spoof The ELSA LANCOM has received an IPX watchdog from the node 00a057123456, which was intended for checking a remote workstation. Because the remote network with the workstation is active, the IPX watchdog is answered locally by ELSA LANCOM to avoid establishing a connection unnecessarily.
  • Page 271 ELSA LANCOM Business internal R101 – The IPX watchdog is forwarded (establishes a connection) Route: – The IPX watchdog is rejected and not answered Filter: – The IPX watchdog target network is not available. Dst Net DOWN Error: Online trace 'SPX watchdogs' The processing of 'SPX watchdog' packets by the outputs under SPX-Wd.
  • Page 272 R102 ELSA LANCOM Business internal The source port is 1197, the target port 23 (telnet), a bit is not set in the TOS. The field TOS may accept the following values (or a combination of them): D--- Low delay -T--...
  • Page 273 An ARP request for the IP address 194.162.38.171 has been received from computer 194.162.38.162. The MAC address of the source computer is saved in the ARP table. In addition, the queried computer is the ELSA LANCOM . Then an ARP response is sent back on the LAN interface.
  • Page 274 The outputs under 'DHCP' describe the procedures in the Dynamic Host Configuration Protocol. The queries from DHCP clients and the answer from the DHCP servers are then displayed in the ELSA LANCOM . The display is in the following format: Format: [DHCP Client Message] [DHCP Server Message]...

  • Page 275: Policy-Based Routing

    IP packets (these ”policies“). To make the in-band configuration easier on wide-area networks with heavy data traffic and to improve the cooperation of ELSA LANCOM with 'ping' and 'traceroute' mechanisms, two methods for the IP routing have been introduced. Both methods are based on the evaluation of the 'Type of Service' field in the IP header.

  • Page 276: Examples

    R106 ELSA LANCOM Business internal is sent first. On the other hand, there is the possibility that a packet already in the send queue will be removed from it again to make room for the IP packet that is to be sent (see above).

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