ADTRAN Stub Routing Manuel d'utilisateur

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Lab 4.9.1 Configuring ISDN BRI
Objective
In this lab, the student will configure two Cisco routers for DDR using ISDN BRI. The student will also
configure PPP CHAP authentication.
Scenario
The International Travel Agency (ITA) wants an ISDN DDR connection configured between a remote
office in Capetown and its corporate office known as SanJose1. For security reasons, and to keep
ISDN charges to a minimum, suggest that only Web, e-mail, FTP, Telnet, and DNS traffic activate
the link from the remote site. Also recommend configuring PPP CHAP authentication. Finally,
Capetown connects to a stub network. For this reason, suggest that static and default routes be used
between both sites.
Step 1
Before beginning this lab, it is recommended that the routers be reloaded after erasing their startup
configuration. This will prevent problems that may be caused by residual configurations.
Build and configure the network according to the diagram, but do not configure the BRI interfaces for
either router yet. Use the Adtran Atlas 550 or similar device to simulate the ISDN cloud. If the Atlas
550 is used, be sure to use straight-through cables. Connect both routers to the respective BRI
module ports of the Atlas 550 as labeled in the diagram.
Configure the hostname and FastEthernet 0/0 interfaces on each router.
Configure both workstations with their respective IP addresses and default gateways. For example,
the router Fa0/0 IP address. Have each host ping their default gateway to verify connectivity.
1 - 7 CCNP 2: Remote Access v 3.0 - Lab 4.9.1 Copyright 2003, Cisco Systems, Inc.
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Résumé du contenu

Page 1 - Scenario

Lab 4.9.1 Configuring ISDN BRI Objective In this lab, the student will configure two Cisco routers for DDR using ISDN BRI. The student will also co

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Step 2 In global configuration mode on SanJose1, use the following to configure the username and password information for the remote router and an ena

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Sa nJose1(config-if)#dialer idle-timeout 60 Next, configure the DDR setting on the BRI interface. Use the dialer-group 1 command as follows, to asso

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The debug isdn q921 command may also be used to troubleshoot Layer 2 issues between the router and the ISDN switch. Once connectivity to the ISDN sw

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Idle timer (120 secs), Fast idle timer (20 secs) Wait for carrier (30 secs), Re-enable (15 secs) Dialer state is idle 4. What is the idle timer set

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Finally, because PPP with CHAP authentication is being used, also debug PPP as follows: SanJose1#debug ppp authentication SanJose1#debug ppp negotiat

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Out 5551000 SanJose1 18 44 15 0 ---------------------------------------------------------------------

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