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ELSA Lancom DSL/10 Office Manual

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  • Page 1 ELSA LANCOM DSL/10 Office...
  • 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 alterations that arise as the result of technical development.
  • Page 3 Thank you for placing your trust in this ELSA product. By selecting the ELSA LANCOM DSL/10 Office you have chosen a router which you can use to connect local area networks or single workstations to the Internet via an xDSL connection.

  • Page 5: Table Of Contents

    Make basic settings with ELSA LANconfig ..........8 Configuring the basic settings using telnet..........10 Configuration modes ....................11 Many paths lead to the ELSA LANCOM DSL/10 Office ........11 The user-friendly method: inband............... 11 Preconditions..................... 11 Alternatively: Address administration with the DHCP server ....12 Beginning configuration using ELSA LANconfig........
  • Page 6 Status/LAN-statistics................R6 Status/PPP-statistics................. R8 Status/TCP-IP-statistics ................R13 Status/IP-router-statistics............... R18 Status/Config-statistics ................R20 Status/DSL-statistics ................R20 Status/DSL-statistics/PPPoE-statistics........... R21 Status/Queue-statistics ................R22 Status/Connection-statistics ..............R23 Status/Info-connection ................R23 Status/Remote-statistics ................ R23 Status/Channel-statistics ............... R24 Status/Time-statistics................R25 Status/Delete-values ................R25 ELSA LANCOM DSL/10 Office...
  • Page 7 Setup......................... R25 Setup/WAN-module ................R26 Setup/Charges-module ................R29 Setup/LAN-module ................. R30 Setup/TCP-IP module ................R31 Setup/IP-router-module ................R34 Setup/SNMP-module................R42 Setup/DHCP-server-module..............R43 Setup/DNS module ................. R45 Setup/Config-module................R46 Setup/Time-module ................R47 Firmware ......................R47 Other ......................... R49 ELSA LANCOM DSL/10 Office...
  • Page 8 VIII Contents ELSA LANCOM DSL/10 Office...

  • Page 9: Introduction

    One new technology is transmission by xDSL, which covers the “last mile” over conventional copper wires. The ELSA LANCOM DSL/10 Office gives you a router that has been specially developed for xDSL terminals. ELSA LANCOM DSL/10 Office can connect individual workstations or entire local networks to the Internet.

  • Page 10: What Does The Elsa Lancom Dsl/10 Office Offer

    100Base-T port. The connection automatically determines the speed at which the local network is running. WAN connection The ELSA LANCOM DSL/10 Office can be connected to the Ethernet interface of an xDSL connection. Status displays LED indicators on the front of your device allow you to monitor the xDSL and Ethernet connection, thus simplifying the process of diagnosing any systems failures.
  • Page 11 To prevent unpleasant surprises from unexpectedly high telephone bills at the end of the month, you can preset the number of online minutes allowed for a specified period (e.g. 10 hours in 6 days) while using a ELSA LANCOM DSL/10 Office. Access protection...
  • Page 12 The DNS server can also access the name and IP information from the DHCP server. The DNS server can also serve as an effective filter for the users in your local network. Access to specified domains can be denied to individual computers or complete networks. ELSA LANCOM DSL/10 Office...

  • Page 13: Installation

    Configuration interface cable Configuration cable adapter Documentation CD containing ELSA LANconfig, other software and electronic documentation Please contact your dealer directly if anything is missing. Introducing the ELSA LANCOM DSL/10 Office This section introduces the unit's hardware. It covers the unit's display elements and connection options.
  • Page 14 This LED shows the status of the DSL connection to the switching center: ELSA LANCOM DSL/10 Office has not requested a login at the switching center ELSA LANCOM DSL/10 Office has requested a login at the switching center; it is logging in green...

  • Page 15: How To Connect The Router

    10Base-T terminal for xDSL or cable modem How to connect the router Connect the router ELSA LANCOM DSL/10 Office to the LAN. Plug the network cable (supplied) into the 10/100Base-T network terminal of the device and into a free network connector on your local network (or into a free socket on a hub in your LAN).

  • Page 16: Software Installation

    ELSA LANconfig or with telnet. Make basic settings with ELSA LANconfig The first time ELSA LANconfig is run, the new access point is detected on the TCP/ IP network and can immediately be configured. A wizard is automatically started to help you with the basic settings of the device or it can even the complete setup itself.
  • Page 17 DHCP server or not. You can find more information on the general structure of networks and setting IP addresses in the electronic documentation on the ELSA LANCOM CD. The functions of the DHCP server are described later in this manual.

  • Page 18: Configuring The Basic Settings Using Telnet

    Installation Configuring the basic settings using telnet If you do not wish to or cannot use ELSA LANconfig (e.g. because you have installed a different operating system), you can also make the basic settings over a telnet connection. Start the telnet connection to the address '10.0.0.254' if you have not previously used IP addresses in your network, or to address 'x.x.x.254', where 'x.x.x' stands for the address...

  • Page 19: 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 20: Alternatively: Address Administration With The Dhcp Server

    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 21: Start Up Inband Configuration Using Telnet

    MENU, dir/status/wan-statistics displays the <VALUE> or <TABLE> VALUE or TABLE current WAN statistics cd <MENU> or <TABLE> switches to the MENU or TABLE cd setup/tcp-ip-module (or cd se/tc specified for short) switches to the TCP/IP module ELSA LANCOM DSL/10 Office...

  • Page 22: New Firmware With Firmsafe

    /se/snmp/admin "" New firmware with FirmSafe The software in the ELSA devices 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 23: How To Load New Software

    If the newly installed release contains parameters which are not present in the device's current firmware, the device will add the missing values using the default settings. ELSA LANconfig In the ELSA LANconfig configuration tool, highlight the desired device in the selection list and click on Edit Firmware Management Upload New Firmware, or click directly on the Firmware Upload button.
  • Page 24 Configuration modes 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 25: 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 26: Accessing Tables And Parameters Using Snmp

    SNMP itself has no mechanisms intended for deleting. You therefore have to use a trick to delete entries from tables. 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. ELSA LANCOM DSL/10 Office...
  • Page 27 There should now be a new column with the new index and the value for another column. Values for all columns of the row can also be entered and all columns can be set simultaneously with Set All. ELSA LANCOM DSL/10 Office...

  • Page 28: The Management Information Base (Mib)

    SNMP management software. 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.

  • Page 29: Operating Modes And Functions

    Needless to say, the parameters that you have set should not be modified by unauthorized persons. The ELSA LANCOM DSL/10 Office thus offers a variety of options to protect die configuration.

  • Page 30: Login Barring

    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 31: The Hiding Place-Ip Masquerading (Nat/Pat)

    The telephone charges can be controlled by limiting the maximum connection time. This requires setting up a time budget for a specified period. In the router's default state, for example, connections may only be established for a maximum of 10 hours within 6 days. ELSA LANCOM DSL/10 Office...

  • Page 32: Settings In The Charge Module

    The charge and time monitoring of the router functions can be disabled by entering a budget of 0 units or 0 minutes. Settings in the charge module The interface settings for the ELSA LANconfig can be found in the 'Management' configuration section on the 'Charges' tab, or under /Setup/Charge-module during telnet or terminal sessions.
  • Page 33 The following sections introduce the names and PPP list and briefly describe the parameters they contain, describe their connections to other lists and their parameters, and how they are configured in the software. For further information on the IP routing table, see the 'IP routing' section. ELSA LANCOM DSL/10 Office...

  • Page 34: Name-List

    Operating modes and functions Name-list The name list in the ELSA LANconfig can be found in the 'Communication' configuration section on the 'Remote Stations' tab, or under /Setup/WAN-module/Name List during telnet or terminal sessions. To define the available remote stations, enter them in the name list with a suitable name...

  • Page 35: Ppp-List

    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 36 Operating modes and functions The routing table can be found in the ELSA LANconfig in the 'TCP/IP' configuration section on the 'Router' tab, or in the menu. /Setup/IP Router/IP Routing This, then, is how an IP routing table might look:...

  • Page 37: Local Routing

    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 38 In doing so, it includes the routes from the dynamic table which it does not know itself or which indicate a shorter distance than its own (static) route with the routes from its own static table. ELSA LANCOM DSL/10 Office...

  • Page 39: Ip Masquerading (Nat, Pat)

    FTP server on the LAN, from the point of view of this computer the router appears to be the FTP server. The router reads the IP address of the FTP server in the LAN 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 menu).

  • Page 40: Dns Forwarding

    ”What IP address belongs to www.domain.com?” 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). If it finds one it retrieves the Setup/TCP-IP-module required information from this server.

  • Page 41: Automatic Address Administration With Dhcp

    Using this protocol, a DHCP server in a TCP/IP-based LAN can dynamically assign the necessary addresses to the individual stations. The DHCP server As a DHCP server, the ELSA LANCOM DSL/10 Office can administer the IP addresses in its TCP/IP network. In doing so, it passes the following parameters to the workstation computers:...

  • Page 42: How Are The Addresses Assigned

    In this case, the broadcast address to be used is entered in the DHCP module. The default setting for the broadcast address should be changed by experienced network specialists only. ELSA LANCOM DSL/10 Office...
  • Page 43 If a computer uses parameters other than those assigned to it (e.g. a different default gateway), these parameters must be set directly on the workstation computer. The computer then ignores the corresponding parameters assigned to it by the DHCP server. ELSA LANCOM DSL/10 Office...

  • Page 44: Dns

    Internet communications, to return the correct IP address for a request such as 'www.elsa.de' for example. However, it's also useful to be able to clearly associate IP addresses to computer names within a local network or in a LAN interconnection.

  • Page 45: Setting Up The Dns Server

    IP addresses current. The DNS server in the ELSA LANCOM DSL/10 Office 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 the domain name.
  • Page 46 '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 DSL/10 Office...
  • Page 47 If your LAN uses subnetting, you can also apply filters to individual departments by carefully selecting the IP addresses and subnet masks. The IP address '0.0.0.0' stands for all computers in the network, and the subnet mask '0.0.0.0' for all networks. ELSA LANCOM DSL/10 Office...
  • Page 48 Operating modes and functions ELSA LANCOM DSL/10 Office...

  • Page 49: Appendix

    158 x 40 x 125 mm (W x H x D) Package contents Power adapter, cable for outband interface, two LAN twisted-pair cables, detained documentation and ELSA LANCOM CD ELSA LANconfig, ELSA LANmonitor for status display, terminal program ELSA-ZOC Approvals: in preparation: Germany, Switzerland and all other EU countries...

  • Page 50: Declaration Of Conformity

    On behalf of the manufacturer / importer: ELSA AG Sonnenweg 11 D-52070 Aachen abgegeben durch: / this declaration is submitted by: Aachen, 23. August 1999 i.V. Stefan Kriebel Aachen, 23 August 1999 Bereichsleiter Entwicklung VP Engineering ELSA LANCOM DSL/10 Office...

  • Page 51: 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 52 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 53: Index

    Dynamic assignment of the IP address ..R35 Computer names .......... 36 Dynamic Host Configuration Protocol ..33 Config-aging-minute(s) ....... R47 Dynamic IP routing table ......R40 Configuration ..........3 Dynamic routing ........... 27 Commands ..........13 ELSA LANCOM DSL/10 Office...
  • Page 54 Inband ............11 Lock-minutes ..........R47 Inband configuration ........11 Login ............15 Install software ..........14 Login barring ..........22 Installation ............2 Login block ..........R47 Interfaces ............7 Login-errors ..........R47 Internet ............2 ELSA LANCOM DSL/10 Office...
  • Page 55 Agents ............17 Outband configuration ........11 Manager ............ 17 MIB ............17 Software update ..........3 Package contents ........... 5 Source port ..........R37 PAP ............. R27 Spare-heap-blocks ........R30 password ............ R32 Start address ..........34 ELSA LANCOM DSL/10 Office...
  • Page 56 TCP/IP networks ........... 36 Wildcards ............. 39 TCP-aging-minute(s) ........R34 winipcfg ............9 Technical data ..........41 WWW ............23 Teleworkers ..........R38 Telnet ............3 XModem ............16 Telnet server ..........R32 Terminal program ........... 3 ELSA LANCOM DSL/10 Office...

  • Page 57: Description Of The Menu Options (On Cd Only)

    Description of the menu options Description of the menu options The menu tree for ELSA LANCOM configuration is divided up into status information, setup parameters, firmware information and 'other'. In order to help you familiarize yourself with the system, you will first be given an overview of the menu structure.
  • Page 58 Operating-time LAN-module WAN-statistics TCP-IP-module LAN-statistics IP-router-module PPP-statistics SNMP-module TCP-IP-statistics DHCP-module IP-router-statistics DNS module Config-statistics Config-module DNS-statistics Time-module Queue-statistics Firmware Connections-statistics Version-table Info-connection Table-firmsafe Remote-statistics Mode-firmsafe Channel-statistics Timeout-firmesafe Time-statistics Test-firmware Delete-values Firmware-upload Other Manual-dialing Boot-system Reset-system System-upload ELSA LANCOM DSL/10 Office...

  • Page 59: Status

    Information on the last connection for each interface Remote-statistics Statistics on the last 100 connections Channel-statistics Information of the status of the individual channels. Time-statistics Time module information Delete-values Deletes all values in the substatistics except tables ELSA LANCOM DSL/10 Office...

  • Page 60: Status/Connection-State

    Number of packets discarded due to an error/lack of resources WAN-heap-packets Number of buffers in use WAN-queue-packets Number of buffers available WAN-queue-errors Number of packets discarded due to a lack of buffers Throughput-statistics Statistics for bytes transferred at the moment Delete-values Deletes WAN statistics ELSA LANCOM DSL/10 Office...
  • Page 61 Number of data packets transferred with priority handling (urgent queue) Error-statistics For each available interface, the Status/WAN-statistics/Error-statistics menu option provides statistics on the transmission errors that have occurred on this interface. The table maintained here has the following layout: Rx-l1-error Rx-l2-error Rx-l3-error Stack-error Tx-error Ch01 ELSA LANCOM DSL/10 Office...

  • Page 62: Status/Lan-Statistics

    Number of data packets incorrectly received LAN-tx-errors Number of data packets incorrectly sent LAN-stack-errors Number of packets without a suitable receive module (IP router) LAN-NIC-errors Number of data packets discarded by the NIC LAN-heap-packets Number of buffers available ELSA LANCOM DSL/10 Office...
  • Page 63 Number of directly addressed packets received from the LAN WAN-rx-broadcasts Number of broadcasts received from the WAN WAN-rx-multicasts Number of multicasts received from the WAN WAN-rx-unicasts Number of unicasts received from the WAN Delete-values Deletes LAN statistics ELSA LANCOM DSL/10 Office...

  • Page 64: Status/Ppp-Statistics

    Status of the 'Link Control Protocol' subprotocol. The possible values are: Initial, Starting, Stopping, Stopped, Closing, Closed, ReqSent, AckRcvd, AckSent and Opened. IPCP Similarly to 'LCP', displays the status of the 'IP Control Protocol' subprotocol. Similarly to 'LCP', displays the status of the 'Compression Control Protocol' subprotocol. ELSA LANCOM DSL/10 Office...
  • Page 65 Number of protocol reject packets sent for PPP Tx-echo-request Number of echo request packets sent for LCP Tx-echo-reply Number of echo response packets sent for LCP Tx-discard-request Number of discard request packets sent for LCP Delete-values Deletes LCP statistics ELSA LANCOM DSL/10 Office...
  • Page 66 Number of times the CHAP challenge packets were resent Tx-challenge Number of CHAP challenge packets sent Tx-response Number of CHAP response packets sent Tx-success Number of CHAP success packets sent Tx-failure Number of CHAP failure packets sent Delete-values Deletes CHAP statistics ELSA LANCOM DSL/10 Office...
  • Page 67 Number of CCP queries rejected because the remote station will not or cannot apply compression. Rx-reset-request Number of CCP queries after synchronizing the compression (e.g. after transfer errors) Rx-reset-ack. Number of confirmed CCP queries after synchronizing the compression ELSA LANCOM DSL/10 Office...
  • Page 68 Tx-terminate-ack. Number of CCP confirmations sent for releasing the compression. Tx-code-reject Number of CCP queries rejected because the ELSA LANCOM does not wish to use compression (by layer list settings). Tx-reset-request Number of CCP queries sent after synchronizing the compression (e.g. after transfer errors) Tx-reset-ack.

  • Page 69: Status/Tcp-Ip-Statistics

    IP-address Again the Rx options have the addresses that were assigned by the remote station and the Tx options have those that the ELSA LANCOM assigned to the remote station DNS-default (e.g. the IP address of the dial-up node at the Internet provider can easily be read in the Tx options).
  • Page 70 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 DSL/10 Office...
  • Page 71 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 DSL/10 Office...
  • Page 72 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 Server-flags DHCP server status (on/off) Delete-values Deletes DHCP statistics. ELSA LANCOM DSL/10 Office...
  • Page 73 Domain Name of the requested computer Requests Total number of requests for this name since its appearance in the table Time Time of the last request IP-address Address of the computer that last requested this name ELSA LANCOM DSL/10 Office...

  • Page 74: Status/Ip-Router-Statistics

    The establish table contains the last 100 entries, which provide information on the system time, destination and source addresses, IP protocol, destination port and source port of the data packets that should have caused a connection to be established. ELSA LANCOM DSL/10 Office...
  • Page 75 Number of IP-RIP packets sent Table-RIP Routing table of routes learned through RIP broadcast Table-RIP The associated RIP table contains all of the routes learned from the network. The router itself maintains this table; you cannot modify it manually. ELSA LANCOM DSL/10 Office...

  • Page 76: Status/Config-Statistics

    The DSL statistics show information on data transfer on the DSL terminal. The displayed values on sent and received packets, packet types etc. aid in the search for errors between the LANCOM DSL/10 Office and the connected xDSL or cable modem. /DSL-statistics...

  • Page 77: Status/Dsl-Statistics/Pppoe-Statistics

    Number of PPP Active Discovery Terminates received (end of session) Tx-potocol Number of protocol packets sent Rx-protocol Number of protocol packets received Tx-data Number of user data packets sent Rx-data Number of user data packets received ELSA LANCOM DSL/10 Office...

  • Page 78: Status/Queue-Statistics

    Name of selected access concentrator Service Name of negotiating service 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 79: Status/Connection-Statistics

    Device-name Indicates the logical name of the remote station (if it can be detected). SH-time Indicates the short timeout for the connection. Status/Remote-statistics This table shows the last hundred connections of the ELSA LANCOMs with information on the remote station. ELSA LANCOM DSL/10 Office...

  • Page 80: Status/Channel-Statistics

    Status/Channel-statistics This table shows information on the current status of the DSL channel. The 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 81: Status/Time-Statistics

    System configuration Name Entering the device name WAN-module WAN settings Charges-module Charge management settings LAN-module LAN settings TCP-IP-module TCP/IP module settings IP-router-module IP router module settings SNMP-module Settings for configuration via SNMP DHCP-module DHCP server settings ELSA LANCOM DSL/10 Office...

  • Page 82: Setup/Wan-Module

    The name list is also used for the callback function. The name list can contain 16 different device names and might, for example, have the following appearance: Device-name SH-time AC-name Service name AACHEN BERLIN ELSA LANCOM DSL/10 Office...
  • Page 83 CHAP ******* 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 84 If nothing is entered here, the values 0,0,0 appear in the display but the default values 10, 5, 2 are still used. These parameters can only be changed via SNMP or TFTP (using the ELSA LANconfig configuration program)! Username The user name (max.

  • Page 85: Setup/Charges-Module

    Boot-system option in the Other menu or by entering a new charges budget. This table can be used only for setting the budget units; all other entries are automatically managed by the system. Entering zero budget minutes deactivates charge monitoring. ELSA LANCOM DSL/10 Office...

  • Page 86: Setup/Lan-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 87: Setup/Tcp-Ip Module

    255.255.255.0 (class C network). A network mask of 255.255.255.255 means that there is only one computer in this network (the router itself). This setting (an IP address registered in the Internet with a fully assigned network mask) can be used for ELSA LANCOM DSL/10 Office...
  • Page 88 The term "internal functions" refers to the following: Telnet server: the configuration interface based on the telnet protocol TFTP server: the configuration interface based on the TFT protocol SNMP: the configuration interface based on the SNMP ELSA LANCOM DSL/10 Office...
  • Page 89 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 90: Setup/Ip-Router-Module

    Negative filter table for the TCP/UDP destination ports of WAN packets Proxy-ARP Activates/deactivates the proxy ARP function Loc.-routing Activates/deactivates local routing Routing-method Routing method for IP packets RIP-config Settings for IP-RIP operation Masquerading Settings for IP masquerading ELSA LANCOM DSL/10 Office...
  • Page 91 IP routing table (the router name 0.0.0.0 means that packets to these addresses are not transmitted). The IP routing table below is provided by way of example and also shows the default settings: ELSA LANCOM DSL/10 Office...
  • Page 92 If packets with the entered ports are received from the LAN side, they will not be forwarded (always filter) unless a connection is currently in place (connect filter) or unless they can be routed over other than the DEFAULT route (I-Net filter). ELSA LANCOM DSL/10 Office...
  • Page 93 The default filter is entered in the above table. It suppresses the unwanted and cost- intensive connections in Windows networks on IP. These networks regularly send items such as DNS queries to the local network, which are routed to the Internet without this filter. ELSA LANCOM DSL/10 Office...
  • Page 94 LAN, the default setting is 'Off'. 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 DSL/10 Office...
  • Page 95 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 DSL/10 Office...
  • Page 96 The use of inverse masquerading makes 'services' (e.g. a file server) selectively visible in Service-table 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 ELSA LANCOM DSL/10 Office...
  • Page 97 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 DSL/10 Office...

  • Page 98: Setup/Snmp-Module

    This command removes the entries from the monitor table. Monitor-table The monitor table has the following structure: IP-address Port MAC-address Timeout 10.0.0.53 1057 0080c76da46e This entry indicates, for example, that an ELSA LANmonitor has logged on to the router. ELSA LANCOM DSL/10 Office...

  • Page 99: Setup/Dhcp-Server-Module

    A valid address is then taken from the pool for the IP address. If the computer was already assigned an IP address at some point in the past, it requests this same address ELSA LANCOM DSL/10 Office...
  • Page 100 – unkn.: While verifying uniqueness, it was determined that the address has already been assigned to another computer. Unfortunately, the DHCP server has no means of obtaining additional information on this computer. ELSA LANCOM DSL/10 Office...

  • Page 101: Setup/Dns Module

    0.0.0.0 prohibits the domain for all networks. The table has the following layout: Name Domain IP-address Netmask F001 *xxx* 0.0.0.0 0.0.0.0 Clear IDs can be freely selected and assigned to the filters in the 'Idx.' field. ELSA LANCOM DSL/10 Office...

  • Page 102: Setup/Config-Module

    Off. This specifies whether a new password should be requested every time a remote Password- required configuration is begun (On), or the password request should be suppressed (Off). The default setting for this option is On. ELSA LANCOM DSL/10 Office...

  • Page 103: Setup/Time-Module

    The default value is 5. A lower value may cause the login 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 104 – In contrast to the first option, the firmsafe will wait until it has successfully logged on over outband or inband (by telnet). In contrast to the first option, the firmsafe will wait until it has successfully logged on (by telnet). The new ELSA LANCOM DSL/10 Office...

  • Page 105: 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 DSL/10 Office...
  • Page 106 Description of the menu options ELSA LANCOM DSL/10 Office...

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