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Black Box LRA3000A Manual

Black Box LRA3000A Manual

T1 and e1 remote access concentrators
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T1 and E1 Remote Access Concentrators
CUSTOMER
SUPPORT
INFORMATION
t o r
e n t r a
C o n c
c e s s
t e A c
e m o
T 1 R
D u a l
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: info@blackbox.com
T
E N E
A 1
A R E
W ID E
S T S
U T
P IN O
L N K
S T S
E T
R E S
MAY 2000
LRA3000A
LRA3001A
LRA3002A
LRA3003A
A 2
C P U
A R E
W ID E
P W R
N C
A S Y
L N K
O
T E L C
S T S
L N K
S T S

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  • Page 1 Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 SUPPORT Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 INFORMATION Web site: www.blackbox.com • E-mail: info@blackbox.com...
  • Page 2 FCC, IC, AND VCCI RFI STATEMENTS; EU DECLARATION OF CONFORMITY FEDERAL COMMUNICATIONS COMMISSION (FCC), INDUSTRY CANADA (IC), AND VOLUNTARY CONTROL COUNCIL FOR INTERFERENCE (VCCI) RADIO-FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
  • Page 3 T1 AND E1 REMOTE ACCESS CONCENTRATORS NORMAS OFICIALES MEXICANAS ELECTRICAL-SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3.
  • Page 4 (5). If too many devices are attached, they may not ring properly. 6. In the event of an equipment malfunction, all repairs should be performed by Black Box. It is your responsibility to tell us that your equipment needs to be serviced.
  • Page 5 (extension cord). Be aware that compliance with the above conditions may not prevent degradation of service in some situations. Repairs to certified equipment should be made by an authorized maintenance facility—in this case, Black Box. Any equipment malfunctions, or any repairs or alterations you make to this equipment, may give the telecommunications company cause to ask you to disconnect the equipment.
  • Page 6 1.544-MBPS/SUBRATE AFFIDAVIT AFFIDAVIT FOR THE CONNECTION OF CUSTOMER EQUIPMENT TO 1.544-MBPS AND/OR SUBRATE DIGITAL SERVICES For the work to be performed in the certified territory of Telco’s name: ________________________________________, State/province of: _____________________________________, Country of : __________________________________________, I, _________________________, of _______________________, (Name of Authorized Representative and Customer Name) _____________________________________________________, _________________________, (Customer’s Address and Telephone Number)
  • Page 7 TRADEMARKS USED IN THIS MANUAL BLACK BOX and the logo are registered trademarks of Black Box Corporation. AT&T is a registered trademark, and Definity is a trademark, of AT&T. VT100 is a trademark of Compaq Computer Corporation.

  • Page 8: Table Of Contents

    TABLE OF CONTENTS Contents Chapter Page 1. Specifications ............................9 2. Introduction ............................12 3. Installation ............................14 3.1 The Complete Concentrator Package ..................14 3.2 Arranging ISDN Service ....................... 14 3.3 Setting the Pinout Switch for Your WAN Interface (T1 Models Only) ........15 3.4 Placement ............................
  • Page 9 6.3.3 Remote-Router Configuration for Standard IP .............. 100 6.4 ISDN Bridge ..........................101 6.4.1 Concentrator Configuration for ISDN Bridging ............103 6.4.2 CSM Configuration for ISDN Bridging (CSM Only) ............. 104 7. Troubleshooting ..........................105 7.1 Calling Black Box ........................105 7.2 Shipping and Packaging ......................105...

  • Page 10: Specifications

    MIBs: Modem MIB, MIB-II, DSX1 MIB, DS0 MIB, SNMP MIBs, RMON MIBs, interfaces MIB Interfaces — WAN: LRA3000A, LRA3002A: ISDN T1 PRI (including CT1 if CAS is enabled) through integral CSU and digital modems; LRA3001A, LRA3003A: ISDN E1 PRI (including R2 if CAS is enabled) through digital modems;...
  • Page 11 Framing: Multi-framing with CRC4, double framing; Line coding: HDB3; R2 channel-associated signaling: ITU, Mexico (Telmex™), Brazil, Indonesia, or India (for other countries, call Black Box Tech Support) Routing — IP: Default route, static routes, RIP v1 and v2; All other routing protocols are supported for bridging only Authentication —...
  • Page 12 (1) RJ-45 female console port, labeled ASYNC; (1) RJ-45 female LAN port, labeled ENET; (1) RJ-48C female WAN port, labeled WIDE AREA 1; LRA3000A, LRA3003A only: (1) RJ-48C female WAN port, labeled WIDE AREA 2 MTBF — 50,000 hours (calculated estimate) Temperature Tolerance —...

  • Page 13: Introduction

    HTML documentation included on CD with the Concentrator. Also, you might want to check our Black Box Web site (www.blackbox.com) for material that might be more up-to- date than what you received, including software or firmware updates, updated MIBs, and revised HTML documentation.
  • Page 14 CHAPTER 2: Introduction The figure below shows the Concentrator’s front panel, where most of its connectors and indicators are. The connectors are discussed in more detail in the next chapter of this manual, and the LED indicators are discussed in the Concentrator’s HTML documentation. PINOUT WIDE AREA 1 ENET...

  • Page 15: Installation

    • (1) CD of HTML documentation. • This manual. If anything is missing or arrives damaged, please call Black Box right away. 3.2 Arranging ISDN Service Before you install your Remote Access Concentrator, we recommend that you contact your telco or service provider and arrange for ISDN service compatible with the Concentrator: 1.

  • Page 16: Setting The Pinout Switch For Your Wan Interface (T1 Models Only)

    The default pinout for both ports (WIDE AREA 1 and WIDE AREA 2) is for North American use. If the LRA3000A or LRA3002A is used in Japan, a ModTap™ adapter is required for the WIDE AREA 2 port to have a correct pinout.

  • Page 17: Placement

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 3.4 Placement Installation sites must be within reach of the network cabling and must meet the following requirements: • A properly grounded AC power receptacle must be within 7 feet (2.1 m) of the location. •...
  • Page 18 CHAPTER 3: Installation 2. With the Concentrator’s faceplate (the front of the unit) towards you, take the Rackmount Kit’s brackets and place one on either side of the Concentrator, so that the front end of each bracket lines up with the faceplate.
  • Page 19 T1 AND E1 REMOTE ACCESS CONCENTRATORS 5. Fasten the bracketed Concentrator assembly to the vertical frame of a 19" rack using your own mounting screws, bolts, cage nuts, etc., as shown below. Concentrator in 19" rack Mounting Mounting screws screws...

  • Page 20: Making Cable Connections

    CHAPTER 3: Installation 3.6 Making Cable Connections 3.6.1 C (ASYNC) C ONSOLE ONNECTIONS Serial ports Console connection Front panel Concentrator RJ-45 to DB9 Adapter RJ-45 console cable The Remote Access Concentrator’s RJ-45 female RS-232 console port (labeled ASYNC) is the gateway to the Concentrator’s local management (configuration) utility.
  • Page 21 T1 AND E1 REMOTE ACCESS CONCENTRATORS In certain unusual circumstances, you might need to connect an analog modem to the Concentrator’s console port. (This type of connection would allow you to remotely administer the Concentrator by dialing in to the modem.) To do this, you’ll need a special cable cross-pinned like this: Signal Concentrator...

  • Page 22: Lan (Enet) Connections

    CHAPTER 3: Installation 3.6.2 LAN (ENET) C ONNECTIONS The Concentrator’s Ethernet port (labeled ENET) is an RJ-45 socket configured as a 10BASE-T hub port. (Refer to the Concentrator’s HTML documentation for complete information about this port and its associated STS LED.) When connecting the Concentrator to another hub (a common scenario), you’ll need a crossover cable.

  • Page 23: Wan (Wide Area) Connections

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 3.6.3 WAN (WIDE AREA) C ONNECTIONS CAUTION! Do not plug a WAN cable into either of the Concentrator’s WIDE AREA ports until you are sure that the encoding, framing, T1 LBO, and switch type that the Concentrator is configured for match the line’s actual values.

  • Page 24: Connecting To Ac Power

    Concentrator should be flashing green, indicating normal operation. If a minute passes and the CPU LED is still not flashing green, contact Black Box Tech Support. 4. If you’re using both power supplies: Unplug the first power cord, then repeat steps 1 through 3 for the other cord.

  • Page 25: Configuration

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4. Configuration 4.1 The Information You’ll Need Before you configure the Remote Access Concentrator, you’ll need to gather the following information and write it down on a copy of the worksheet printed on the next page: •...
  • Page 26 CHAPTER 4: Configuration Table 4-1. Configuration Worksheet Record some of the most important Remote Access Concentrator configuration settings here. Concentrator information: 1. IP address: _________________________________________ 2. Phone number: ______________________________________ 3. RADIUS or CSM on same subnet as Concentrator? If not, provide gateway: ___________________________ 4.

  • Page 27: The Local Management Utility

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.2 The Local Management Utility You’ll configure the Remote Access Concentrator with its Local Management utility. This utility is accessible through the Concentrator’s local console (ASYNC) port or through a remote (Telnet) connection. For initial configuration, you must use the local console port to access Local Management.
  • Page 28 CHAPTER 4: Configuration Configuration menu; see Section 4.3.2. For security reasons, we suggest making this change at the time of the initial installation.) The next screen presented is the Module Menu: Select Module Configuration (see Section 4.3) for menus of options for setting up your Concentrator. Select Network Tools (see Section 4.4) for a prompt at which you can enter a number of commands to control the Concentrator’s configuration and operation.

  • Page 29: Module Configuration

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3 Module Configuration When you select Module Configuration from the main Local Management menu (see Section 4.2), you’ll see this screen if the Remote Access Concentrator is set to its default values:...
  • Page 30 CHAPTER 4: Configuration If Channel Associated Signaling (CAS) has been enabled in the Network Tools menu (see Section 4.3.6), you’ll see this version of the screen: Select any of the Module Configuration options to set up a wide variety of features: •...

  • Page 31: Ip Configuration

    You can also select Flash Download from this menu if you want to upgrade the Concentrator’s firmware. See Section 4.3.8. (Call Black Box Tech Support if you’re not sure whether you need an upgrade or not.) The other option on this menu, SNMP Traps, is not supported at this time.

  • Page 32: A Ip Lan Interface

    CHAPTER 4: Configuration 4.3.1.A IP LAN Interface Configuring its LAN interface allows the Remote Access Concentrator to route IP data. Routing Information Protocol (RIP) can be enabled on the interface to allow the exchange of routing information among IP devices, automating the maintenance of routing tables. To configure the IP LAN Interface, take these steps: 1.
  • Page 33 T1 AND E1 REMOTE ACCESS CONCENTRATORS 5. Select the RIP Send Control. This determines how RIP update messages are sent on the interface. Choices are: • RIP1 COMPATIBLE RIP V2 version packets are sent using RFC 1058 subsumption rules with standard broadcast addressing. This choice allows RIP-1 routers to receive RIP update messages from the Concentrator.

  • Page 34: B Default Lan Route

    CHAPTER 4: Configuration 4.3.1.B Default LAN Route The Default LAN Route is a special static route that can be useful when there are a large number of networks accessible through a gateway. All IP packets received having a destination IP address without an explicit routing- table entry will be sent to the default route.
  • Page 35 T1 AND E1 REMOTE ACCESS CONCENTRATORS 4. Enter the Metric value. This is the administrative distance to the destination. The administrative distance is typically measured by the hop count (the number of routers) between the Concentrator and the destination. If multiple routes exist to the same destination, the route with the lowest metric value will be chosen as its primary route.

  • Page 36: C Static Lan Routes

    CHAPTER 4: Configuration 4.3.1.C Static LAN Routes The LAN routes that the Remote Access Concentrator uses to get to subnets reachable through a WAN device are configured using CSM or RADIUS. Routes behind LAN-attached routers are discovered with RIP. And the Concentrator’s LAN-interface configuration specifies its LAN subnet.
  • Page 37 T1 AND E1 REMOTE ACCESS CONCENTRATORS 4. Enter the Next Hop Address. This is the address for the next-hop gateway that provides access to the target subnet or host. The IP address of the Next Hop must be on the subnet connected to the Concentrator’s LAN interface.

  • Page 38: Snmp Community Names

    CHAPTER 4: Configuration 4.3.2 SNMP C OMMUNITY AMES Use this menu to change the Remote Access Concentrator’s passwords from their initial factory-default values. For security reasons, we suggest making this change at the time of your initial Concentrator installation. Take these steps: 1.

  • Page 39: Authentication Settings

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.3 A UTHENTICATION ETTINGS To configure the Remote Access Concentrator’s Authentication Settings, take these steps: 1. Select Module Configuration from the Local Management utility’s Module Menu. 2. Select Authentication Settings from the Module Configuration menu. This screen will appear: 3.
  • Page 40 CHAPTER 4: Configuration 6. Enter the System Secret. This is the Concentrator’s own CHAP secret, used in authentication negotiation not only with CSM but also whenever the Concentrator calls out to remote devices that use CHAP. 7. Enter the System Password. This is the Concentrator’s PAP secret, used for authentication negotiation when the Concentrator calls out to a remote device that uses PAP.

  • Page 41: Ppp Settings

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.4 PPP S ETTINGS Through the Concentrator’s PPP settings, you can: • Configure name server information This feature implements RFC 1877—PPP Internet Protocol Control Protocol Extensions for Name Server Addresses—which allows the Concentrator to supply remote devices with primary and secondary Domain Name System (DNS) and NetBIOS Name Server (NBNS) addresses when they dial in to the Concentrator using Windows dialup.
  • Page 42 CHAPTER 4: Configuration 4. To complete the IP Address Pool Configuration, enter a Beginning and Ending address for the IP Address Pool Range and toggle the Enable value to YES. 5. Select SAVE and then RETURN to return to the Module Configuration menu.

  • Page 43: Using A Radius Server As A Device Database

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.5 U RADIUS S SING A ERVER AS A EVICE ATABASE You may use a RADIUS server with a Remote Access Concentrator both for remote device authentication and to maintain accounting information. NOTE If the RADIUS device is not on the same subnet as the Concentrator, you will need to define either a default LAN route (see Section 4.3.1.B) or a static LAN route (see Section 4.3.1.C) to the RADIUS device, and add a matching route on that device (that is, a route from the device to the Concentrator) by issuing a route command at the...

  • Page 44: A Radius Authentication Servers

    CHAPTER 4: Configuration 4.3.5.A RADIUS Authentication Servers If you want to, you can use the Remote Access Concentrator’s software implementation of a RADIUS authentication client with a RADIUS authentication server acting as your device database. As a client, the Concentrator sends access-request packets to designated RADIUS authentication servers to authenticate remote devices.
  • Page 45 T1 AND E1 REMOTE ACCESS CONCENTRATORS 7. Specify the Number of Access Retries that the system will send to the RADIUS authentication server. When a remote device needs to be authenticated, the Concentrator will send an access request to the server. After a set wait-for-response interval elapses—you’ll configure the length of this interval in the next step—...

  • Page 46: B Radius Accounting Servers

    CHAPTER 4: Configuration 4.3.5.B RADIUS Accounting Servers If you want to, you can use the Remote Access Concentrator’s software implementation of a RADIUS accounting client. As a client, the Concentrator sends accounting packets to designated RADIUS accounting servers. When a call is initiated and authenticated successfully, the Concentrator will send an accounting- request “START”...
  • Page 47 T1 AND E1 REMOTE ACCESS CONCENTRATORS 7. Specify the Number of Access Retries that the system will send to the RADIUS accounting server. When a call is initiated, the Concentrator will send an accounting request to the server. After a set wait-for-response interval elapses—you’ll configure the length of this interval in the next step—the system will send an accounting-request retry if the server does not respond.

  • Page 48: C Radius Client Support

    CHAPTER 4: Configuration 4.3.5.C RADIUS Client Support The Remote Access Concentrator’s RADIUS Client supports these features: • Device-level authentication for inbound PPP-IP and PPP-bridge devices. • CHAP or PAP authentication (one or the other is required). • Remote-device IP addresses: Assigned by the RADIUS server or selected by the remote device itself. •...
  • Page 49 T1 AND E1 REMOTE ACCESS CONCENTRATORS Table 4-2. Supported RADIUS-Packet Attributes (continued) Attribute Name Comments Framed-IP-Address Access-Accept may contain this attribute, which indicates the IP address assigned to the remote device. If the attribute is 255.255.255.255, the NAS (Network Access Server—the Concentrator in this case) should allow the user to select an address.
  • Page 50 CHAPTER 4: Configuration Table 4-2. Supported RADIUS-Packet Attributes (continued) Attribute Name Comments Acct-Status-Type In Accounting-Request packet. Indicates whether this is the beginning of the user service (Start) or the end (Stop). Acct-Input-Octets In Accounting-Request packet. Number of octets received from the port over the course of this service being provided.

  • Page 51: Cas Configuration

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.6 CAS C ONFIGURATION You may configure the Remote Access Concentrator to provide channel associated signaling (CAS). Similar to ISDN signaling, CAS signaling methods provide an interface for the telco switch to signal incoming calls (or, with the R2 protocol, both incoming and outgoing calls).
  • Page 52 CHAPTER 4: Configuration 4. Select Module Configuration from the Local Management utility’s Module Menu. The screen below will appear.
  • Page 53 T1 AND E1 REMOTE ACCESS CONCENTRATORS 5. You’ll notice that the Module Configuration menu now includes an option—CAS Configuration— that it didn’t before. (This option only appears after CAS has been enabled in Network Tools and the system has been rebooted.) Select CAS Configuration. This screen will appear: Note that the Number of CAS Lines is not changeable through this menu.
  • Page 54 CHAPTER 4: Configuration 8. There are some CAS protocols (such as R2 Mexico) for which you may designate the number of digits used for the telephone number. To set the digit count, select the General Configuration option by using the arrow keys to move the highlight onto it and pressing Enter. This screen will appear: If Digit Count appears as ENABLED in this menu, you may change the count’s value.

  • Page 55: B Rbs (For T1)

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.6.B RBS (for T1) The T1 models of the Remote Access Concentrator are capable of accepting incoming calls over a channelized T1 (CT1) line provisioned for Robbed Bit Signaling (RBS). RBS is a framing pattern that allows signaling bits to be “robbed”...
  • Page 56 CHAPTER 4: Configuration 4. Select Module Configuration from the Local Management utility’s Module Menu. The screen below will appear.
  • Page 57 T1 AND E1 REMOTE ACCESS CONCENTRATORS 5. You’ll notice that the Module Configuration menu now includes an option—CAS Configuration— that it didn’t before. (This option only appears after CAS has been enabled in Network Tools and the system has been rebooted.) Select CAS Configuration. This screen will appear: Note that the Number of CAS Lines is not changeable through this menu.
  • Page 58 CHAPTER 4: Configuration 8. Select the General Configuration option by using the arrow keys to move the highlight onto it and pressing Enter. This screen will appear: This screen displays Default Info Type and Skip Toning Delay information. Note that the Skip Toning Delay is measured in hundredths of seconds (in this example, 00060 =0.6 seconds).

  • Page 59: General Configuration

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.3.7 G ENERAL ONFIGURATION Use the General Configuration menu of the Remote Access Concentrator’s Local Management utility to set date and time information, as well as to establish the Concentrator’s IP address. Also, if you ever need to restore your Concentrator to its factory-default settings (including its password), select Clear NVRAM from this menu to purge the Concentrator’s nonvolatile RAM.
  • Page 60 CHAPTER 4: Configuration 6. TFTP is used for uploading firmware upgrades to the Concentrator. If your TFTP server is not on the same physical/logical subnet as the Concentrator, you will need to enter its IP address in the TFTP Gateway IP field. Note that you can also set this address in the Concentrator’s Flash Download screen (see Section 4.3.8);...

  • Page 61: Flash Download (Upgrading The Firmware)

    2. Make sure the TFTP server is up and running. 3. If you haven’t done so already, download the archive file that contains the latest version of the Concentrator’s firmware. This should be on the Black Box Web site; if you can’t find it, call Black Box Tech Support.
  • Page 62 CHAPTER 4: Configuration 7. Select Flash Download from the Module Configuration menu. A screen like this will appear: 8. In the Download Server IP field, enter the IP address of the TFTP server to which the firmware upgrade has been copied. 9.

  • Page 63: Network Tools

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.4 Network Tools Network Tools (accessible from the Local Management utility’s Module Menu) is command-line driven. It allows you to enter commands in order to gather information, change system parameters, and/or perform diagnostic procedures. For a listing of all of its available commands, type “help” at its command prompt, or refer to the “LRA3000 Console Commands”...

  • Page 64: Fault Records

    CHAPTER 4: Configuration 4.5 Fault Records You can review the Remote Access Concentrator’s regular log messages by typing in the log start command at the Local Management utility’s Network Tools command prompt; see Section 4.4. These messages might refer you to the Fault Records log for additional information. To access the Fault Records log, select Fault Records from the Local Management utility’s Module Menu.
  • Page 65 2. Get screen captures of the results of the initial log-in screen and inv command output. 3. Forward this information to Black Box Tech Support. When you no longer need the current set of Fault Records, use the CLEAR LOG screen option to empty...

  • Page 66: Integrating The Concentrator Into Your Network

    CHAPTER 4: Configuration 4.6 Integrating the Concentrator Into Your Network There are special configuration considerations you need to keep in mind if you want to integrate the Remote Access Concentrator into a network containing routers. First, you should disable outbound authentication on routers that connect to a Concentrator. This is because leaving outbound authentication enabled on routers that connect to the Concentrator creates a security gap.

  • Page 67: Using Static Routes To Reach Subnets Through Wan Devices

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.6.1 U WAN D SING TATIC OUTES TO EACH UBNETS HROUGH EVICES Some remote devices connecting to the Remote Access Concentrator may actually be routers and not simply dial-up clients. These routers across the WAN are added to either RADIUS or CSM as remote devices. If the routers have one or more subnets reachable behind them, static routes must be configured to those subnets.

  • Page 68: Integrating The Concentrator Into A Standard Ip Network

    CHAPTER 4: Configuration 4.6.2 I IP N NTEGRATING THE ONCENTRATOR NTO A TANDARD ETWORK The illustration below shows how to integrate your Remote Access Concentrator into a standard IP network. Refer to this example as you set up your network, substituting your network’s specifics where applicable. Server 4.4.4.1 Running...
  • Page 69 T1 AND E1 REMOTE ACCESS CONCENTRATORS Remote host 2.2.2.10 to device 4.4.4.1 behind remote router: 1. Configure remote host 2.2.2.10 as a device in the authentication database. 2. Configure Router 3 as a device in the authentication database. 3. Configure a static route to subnet 4.4.4.x through Router 3 in the authentication database. 4.

  • Page 70: Integrating The Concentrator Into An Ip Network As An Internet Gateway

    CHAPTER 4: Configuration 4.6.3 I IP N NTEGRATING THE ONCENTRATOR INTO AN ETWORK AS AN NTERNET ATEWAY The illustration below shows how to integrate your Remote Access Concentrator into an IP network in which the Concentrator is configured as a gateway to the Internet. Refer to this example as you set up your network, substituting your network’s specifics where applicable.

  • Page 71: Integrating The Concentrator Into An Ip Network With Multiple Subnets

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 4.6.4 I IP N NTEGRATING THE ONCENTRATOR NTO AN ETWORK WITH ULTIPLE UBNETS The illustration below shows how to integrate your Remote Access Concentrator into an IP network with multiple LAN subnets. Refer to this example as you set up your network, substituting your network’s specifics where applicable.

  • Page 72: Basic Csm

    CHAPTER 5: Basic CSM 5. Basic CSM This chapter is intended as a brief guide to some important functions of the Remote Access Concentrator’s Connection Services Manager (CSM) software (sold separately as product code LRA300SW). (If you aren’t using CSM, this chapter is irrelevant.) For much more complete information about CSM, see its HTML documentation.

  • Page 73: Csm Configuration

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 5.2 CSM Configuration To configure CSM, these prerequisites need to be in place: 1. The CSM software should be properly installed and running. 2. Make sure that these critical authentication values for the Concentrator have been configured in the Concentrator’s Local Management utility (see Sections 4.3.1.A, 4.3.3, and 4.3.7) and that you set them to match in CSM: •...

  • Page 74: Establishing An Ip-Address Pool

    CHAPTER 5: Basic CSM 5.2.1 E IP-A STABLISHING AN DDRESS To simplify remote-device management, consider using an IP-address pool to dynamically assign IP addresses to remote devices as they connect to the Remote Access Concentrator. In order to use an IP address pool, you must first determine whether or not the Concentrator needs to initiate calls.

  • Page 75: Setting Up The Concentrator As An Access Server

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 5.2.2 S ETTING P THE ONCENTRATOR AS AN CCESS ERVER Take these steps to configure CSM to recognize the Concentrator as its Access Server: 1. From the CSM Connection Manager, select Configure on the menu bar. 2.

  • Page 76: Setting Up Csm For Your Remote Devices

    CHAPTER 5: Basic CSM 5.2.3 S ETTING EMOTE EVICES To configure CSM to recognize your remote devices, these prerequisites need to be in place: 1. The Concentrator should be properly installed and configured through its Local Management utility. 2. The CSM software should be properly installed and configured to recognize the Concentrator (see Section 5.2.2).
  • Page 77 T1 AND E1 REMOTE ACCESS CONCENTRATORS 8. Select the Telephone tab: • Specify whether the connection is ISDN or Digital Modem. • Enter the telephone number of the remote device. Two things to be aware of: • You cannot call out from the Concentrator if you plan to use IP address pooling for this device. •...

  • Page 78: Upgrading The Concentrator's Firmware Through Csm

    CHAPTER 5: Basic CSM 5.3 Upgrading the Concentrator’s Firmware Through CSM There are several methods available for upgrading your Remote Access Concentrator’s firmware. The first time you do so—and each subsequent time you upgrade a single Concentrator—you’ll probably want to use the Concentrator’s Local Management utility as described in Section 4.3.7.

  • Page 79: Using Atftp Server

    3. If you haven’t done so already, download the archive file that contains the latest version of the Concentrator’s firmware. This should be on the Black Box Web site, www.blackbox.com; if you can’t find it, call Black Box Tech Support.
  • Page 80 CHAPTER 5: Basic CSM 12. You should see a message asking you to wait for the Concentrator to reboot. This does not necessarily mean that the download was successful. This only means that the SNMP parameters have been successfully set for a download. After waiting several minutes, click “Refresh”, then check the entry in the Currently Running box to see if the release number for the new firmware upgrade is displayed.

  • Page 81: Using Atftp/Bootp Server

    3. If you haven’t done so already, download the archive file that contains the latest version of the Concentrator’s firmware. This should be on the Black Box Web site, www.blackbox.com; if you can’t find it, call Black Box Tech Support.
  • Page 82 CHAPTER 5: Basic CSM Finish the process by triggering the upgrade with CSM (consult CSM’s HTML documentation as necessary): 10. In the CSM Connection Manager, click the Configure menu, then select Access Server. 11. Double-click the entry for the first Concentrator whose firmware you want to upgrade, then click the HW/FW tab.

  • Page 83: Applications

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6. Applications There are several ways to establish a remote connection to the Remote Access Concentrator. This chapter describes these four remote-access applications, including illustrations and examples of configuration parameters: • Windows Dial-up Networking and a modem (in Section 6.1) •...
  • Page 84 CHAPTER 6: Applications Perhaps this is what the Configuration Worksheet for our example network looks like: Configuration Option Setting IP address for Concentrator 2.2.2.1 Phone number for Concentrator (555) 555-1234 RADIUS or CSM on same subnet as Concentrator? Authentication: CSM secret CSM_sec Concentrator name Conc_LRA3...

  • Page 85: Concentrator Configuration For Windows Dial-Up Networking

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.1.1 C ONCENTRATOR ONFIGURATION FOR INDOWS ETWORKING This section describes using the Remote Access Concentrator’s Local Management utility to configure the Concentrator for the example Windows Dial-up application shown earlier in Section 6.1. Because we’re using the Concentrator’s default values for Line Build Out and switch type, configuration involves only the utility’s Module Configuration menu, not Network Tools.

  • Page 86: Csm Configuration For Windows Dial-Up Networking (Csm Only)

    CHAPTER 6: Applications 6.1.2 CSM C (CSM O ONFIGURATION FOR INDOWS ETWORKING This section describes configuring the Connection Services Manager (CSM) software for the example Windows Dial-up application shown earlier in Section 6.1. This would include: • Establishing a pool of IP addresses to be temporarily assigned to remote devices. The PC using Windows 95 dial-up networking will be one of these remote devices.
  • Page 87 T1 AND E1 REMOTE ACCESS CONCENTRATORS 14. Under the Access tab (Authentication): a. Select PPP as Layer 2 Protocol. b. Enable Authentication. c. Enter the CHAP secret (“secret1”). 15. Click Add to add the device.

  • Page 88: Remote-Device Configuration For Windows Dial-Up Networking

    CHAPTER 6: Applications 6.1.3 R EMOTE EVICE ONFIGURATION FOR INDOWS ETWORKING This section describes configuring the remote device (a PC, in this case) for the example Windows Dial-up application shown earlier in Section 6.1. This would include: • Identifying the new connection; •...
  • Page 89 T1 AND E1 REMOTE ACCESS CONCENTRATORS 12. Optional: If necessary, change the settings of any dialing properties for this connection by clicking the box labeled “Dialing Properties”. 13. Double-click “Connect”. This should place the call.

  • Page 90: Isdn Router Running Nat

    CHAPTER 6: Applications 6.2 ISDN IP Router Running NAT From pool: An address from Server 2.2.2.11 to 2.2.2.25 Running 2.2.2.6 PSTN Router2_nat 2.2.2.1 2.2.2.3 Concentrator 2.2.2.4 Internet 2.2.2.2 2.2.2.5 Remote Network Router 1 (local addresses from Intranet DHCP server) Local Network In this example, multiple PC end stations on a remote subnet need to connect to the local network using an ISDN IP router.
  • Page 91 T1 AND E1 REMOTE ACCESS CONCENTRATORS Perhaps this is what the Configuration Worksheet for our example network looks like: Configuration Option Setting IP address for Concentrator 2.2.2.1 Phone number for Concentrator (555) 555-1234 RADIUS or CSM on same subnet as Concentrator? Authentication: CSM secret CSM_sec...

  • Page 92: Concentrator Configuration For Nat

    CHAPTER 6: Applications 6.2.1 C ONCENTRATOR ONFIGURATION FOR This section describes using the Remote Access Concentrator’s Local Management utility to configure the Concentrator for the example NAT application shown earlier in Section 6.2. Because we’re using values other than the Concentrator’s defaults for Line Build Out and switch type, configuration involves both the utility’s Module Configuration menu and its Network Tools interface.

  • Page 93: Csm Configuration For Nat (Csm Only)

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.2.2 CSM C NAT (CSM O ONFIGURATION FOR This section describes configuring the Connection Services Manager (CSM) software for the example NAT application shown earlier in Section 6.2. This would include: • Establishing a pool of IP addresses to be temporarily assigned to remote devices. The IP router using NAT will be one of these remote devices.
  • Page 94 CHAPTER 6: Applications 14. Under the Access tab (Authentication): a. Select PPP as Layer 2 Protocol. b. Enable Authentication. c. Enter the CHAP secret (“secret1”). 15. Click Add to add the device.

  • Page 95: Remote-Router Configuration For Nat

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.2.3 R EMOTE OUTER ONFIGURATION FOR This section describes configuring the remote router for the example NAT application shown earlier in Section 6.2. This would include: • Enabling IP routing on the router. • Providing authentication information: Configure the router’s name (“Router2_nat”) and secret (“secreta”), which must match the remote-device configuration in CSM.

  • Page 96: Standard Isdn Ip Router

    CHAPTER 6: Applications 6.3 Standard ISDN IP Router Server unnumbered unnumbered Running 2.2.2.6 1.1.1.1 PSTN Router2 2.2.2.1 2.2.2.3 1.1.1.2 Concentrator Remote Network 2.2.2.4 Internet 2.2.2.2 2.2.2.5 Router1 Intranet Local Network In this example, a single PC end station on a remote subnet needs to connect to the local network using an ISDN IP router.
  • Page 97 T1 AND E1 REMOTE ACCESS CONCENTRATORS Perhaps this is what the Configuration Worksheet for our example network looks like: Configuration Option Setting 1 Setting 2 IP address for Concentrator 2.2.2.1 Phone number for Concentrator (555) 555-1234 RADIUS or CSM on same subnet as Concentrator? Authentication: CSM secret...

  • Page 98: Concentrator Configuration For Standard Ip

    CHAPTER 6: Applications 6.3.1 C ONCENTRATOR ONFIGURATION FOR TANDARD This section describes using the Remote Access Concentrator’s Local Management utility to configure the Concentrator for the example standard IP application shown earlier in Section 6.3. Because we’re using the Concentrator’s default values for Line Build Out and switch type, configuration involves only the utility’s Module Configuration menu, not Network Tools.

  • Page 99: Csm Configuration For Standard Ip (Csm Only)

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.3.2 CSM C IP (CSM O ONFIGURATION FOR TANDARD This section describes configuring the Connection Services Manager (CSM) software for the example NAT application shown earlier in Section 6.3. This would include: • Defining the Concentrator as an access server and establish authentication parameters. •...
  • Page 100 CHAPTER 6: Applications 11. Under the Access tab (Authentication): a. Select PPP as Layer 2 Protocol. b. Enable Authentication. c. Enter the CHAP secret (“secret3”). 12. Under the Telephone tab, specify ISDN as the Connect Type. 13. Provide Router2’s telephone number: Click Add, and then enter the number (9-1-888-555-4321). 14.

  • Page 101: Remote-Router Configuration For Standard Ip

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.3.3 R EMOTE OUTER ONFIGURATION FOR TANDARD This section describes configuring the remote router for the example standard IP application shown earlier in Section 6.3. This would include: • Enabling IP routing on the router. •...

  • Page 102: Isdn Bridge

    CHAPTER 6: Applications 6.4 ISDN Bridge Server Running 2.2.2.9 2.2.2.7 PSTN Bridge 2.2.2.1 2.2.2.3 2.2.2.5 Concentrator 2.2.2.4 2.2.2.6 Internet 2.2.2.2 Remote Subnet 2.2.2.8 Router1 Intranet Local Network In this example, multiple PC end stations on a remote subnet need to connect to the local network using an ISDN bridge.
  • Page 103 T1 AND E1 REMOTE ACCESS CONCENTRATORS Perhaps this is what the Configuration Worksheet for our example network looks like: Configuration Option Setting IP address for Concentrator 2.2.2.1 Phone number for Concentrator (555) 555-1234 RADIUS or CSM on same subnet as Concentrator? Authentication: CSM secret CSM_sec...

  • Page 104: Concentrator Configuration For Isdn Bridging

    CHAPTER 6: Applications 6.4.1 C ISDN B ONCENTRATOR ONFIGURATION FOR RIDGING This section describes using the Remote Access Concentrator’s Local Management utility to configure the Concentrator for the example ISDN-bridging application shown earlier in Section 6.4. Because we’re using the Concentrator’s default values for Line Build Out and switch type, configuration involves only the utility’s Module Configuration menu, not Network Tools.

  • Page 105: Csm Configuration For Isdn Bridging (Csm Only)

    T1 AND E1 REMOTE ACCESS CONCENTRATORS 6.4.2 CSM C ISDN B (CSM O ONFIGURATION FOR RIDGING This section describes configuring the Connection Services Manager (CSM) software for the example ISDN-bridging application shown earlier in Section 6.4. This would include: • Defining the Concentrator as an access server and establish authentication parameters. •...

  • Page 106: Troubleshooting

    If you determine that your Remote Access Concentrator is malfunctioning, do not attempt to alter or repair the unit. It contains no user-serviceable parts. Contact Black Box Technical Support at 724-746-5500. Before you do, make a record of the history of the problem. We will be able to provide more efficient and accurate assistance if you have a complete description, including: •...
  • Page 107 NOTES...
  • Page 108 NOTES...
  • Page 109 NOTES...
  • Page 110 © Copyright 2000. Black Box Corporation. All rights reserved. 1000 Park Drive • Lawrence, PA 15055-1018 • 724-746-5500 • Fax 724-746-0746...

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