Cisco Systems 7920 appendix Configuring the Inter−VLAN Router, Router# show vlan

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Troubleshooting

There are no troubleshooting steps for this task.

Configuring the Inter−VLAN Router

This subtask provides the partial configuration required for any Cisco IOS Software−based router that supports 802.1Q trunking over a Fast Ethernet port. If you would like to review the concepts involved in configuring inter−VLAN routing, refer to Routing Between VLANs Overview. General information on VLANs and Trunking can be found on the VLANs (Virtual LANs) & VTP (VLAN Trunking Protocol) Technical Support page.

This partial configuration establishes an 802.1Q trunk between the Catalyst 2924 XL and the inter−VLAN router:

!

ip dhcp smart−relay

!

interface FastEthernet0/0

description Native VLAN Trunk to Cat2924XL ip address 10.21.7.72 255.255.255.0

ip helper−address 10.21.15.10

ip dhcp relay information trusted speed auto

!

interface FastEthernet0/0.1 description VLAN2 Trunk to Cat2924XL encapsulation dot1Q 2

ip address 10.21.8.72 255.255.255.0 ip helper−address 10.21.15.10

ip dhcp relay information trusted

!

!

interface FastEthernet0/0.8 description VLAN9 Trunk to Cat2924XL encapsulation dot1Q 9

ip address 10.21.15.72 255.255.255.0 ip helper−address 10.21.15.10

ip dhcp relay information trusted

!

Verifying

Issue the show vlan 1 command to verify that the native (VLAN1) inter−VLAN router port is configured correctly. In this sample output, you can see that traffic is passing in both directions over this trunk:

Router# show vlan 1

Virtual LAN ID: 1 (IEEE 802.1Q Encapsulation)

vLAN Trunk Interface: FastEthernet0/0

This is configured as native Vlan for the following interface(s): FastEthernet0/0

Protocols Configured: Address:

Received: Transmitted:

IP

10.21.7.72

6315069

5625671

Issue the show vlan 2 command to verify that the VLAN2 inter−VLAN router port is configured correctly. In this sample output, you can see that traffic is passing in both directions over this trunk:

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Contents
Introduction Document IDComponents Used PrerequisitesRequirements Related ProductsConventions Background TheoryUsing Open Authentication and Static WEP Keys Network DiagramConfiguring the Cisco Choose Edit Settings Wizard Step−by−Step InstructionsPage Click the System Parameters tab Click the Network Security tab Click the Phone Settings tab Choose Connection Logout Select Cisco 7920 USB and click Stop When this popup window appears, click OK Verifying Configuring the Cisco Aironet 1200 APTroubleshooting Choose Security Ssid ManagerPage Verifying Using Open Authentication, Static WEP Keys, and VLANs Choose Edit Settings Wizard Page Page When this popup window appears, click Yes Select Cisco 7920 USB and click Stop When this popup window appears, click OK Configuring the Cisco Aironet 1200 AP with a Vlan Step−by−Step Instructions for Configuring Vlan 1 defaultChoose Services Vlan Choose Security Encryption Manager Step−by−Step Instructions for Configuring VLAN2 Verifying Configuring 802.1Q Trunking on the Catalyst 2924 XL 2924XL# show interface fastethernet 2/1 switchport 2924XL# show interface fastethernet 2/3 switchport Configuring the Inter−VLAN Router Router# show vlanUsing Cisco Leap When this popup window appears, click Cancel Click the Network Security tab Select Connection Logout Select Cisco 7920 USB and click Stop When this popup window appears, click OK Configuring the Cisco Aironet 1200 AP for Leap Click Security Server Manager10.21.15.10 Do not check Open Authentication or Shared Authentication Configuring the Cisco Secure Server for Leap Click Submit + Restart Page Page Page Check the Log to CSV Passed Authentications report check box Check the Log to CSV Radius Accounting report check box Troubleshooting Guidelines Click the Passed Authentications active.csv fileCisco 7920 Exhibits Problems After Configuration Changes Cisco 7920 Error Message − Association Failed, No AP FoundCisco 7920 Error Message − No Service IP Config Failed Incorrect WEP KeysCisco 7920 Error Message − Registration Rejected Cisco 7920 Error Message − Connecting to CallManager 0−5IP Routing Problems Click Failed Attempts Leap Authentication FailsCheck for Radius Error Messages on the Cisco Secure Server Click Failed Attempts active.csvCheck for IP Configuration Problems Trunking Native Mode Vlan 1 defaultAppendix Configuring the Cisco 7920 with CallManager General Troubleshooting HintsRelated Information
Related manuals
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