Cisco 870-Series Router Manual PDF (Setup & Configuration Guide)

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Chapter 9

Configuring a Wireless LAN Connection

Configure Bridging on VLANs

Repeat

Step 2

through

Step 7

above for each VLAN that requires a wireless interface.

Step 3

bridge-group

number

Example:

Router(config)#

bridge-group 1

Router(config)#

Assigns a bridge group to the interface.

Step 4

bridge-group

number parameter

Example:

Router(config)#

bridge-group 1

spanning-disabled

Router(config)#

Sets other bridge parameters for the bridging

interface.

Step 5

interface

name number

Example:

Router(config)#

interface bvi 1

Router(config)#

Enters configuration mode for the virtual bridge

interface.

Step 6

bridge

number

route

protocol

Example:

Router (config) #

bridge 1 route ip

Router(config)#

Specifies the protocol for the bridge group.

Step 7

ip address

address mask

Example:

Router(config)#

ip address 10.0.1.1

255.255.255.0

Router(config)#

Specifies the address for the virtual bridge

interface.

Command or Action

Purpose

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Chapter 9

Configuring a Wireless LAN Connection

Configure Radio Station Subinterfaces

Perform these steps to configure subinterfaces for each root station, beginning in global configuration

mode:

Command

Purpose

Step 1

interface

type number

Example:

Router(config)#

interface dot11radio 0.1

Router(config-subif)#

Enters subinterface configuration mode for the

root station interface.

Step 2

description

string

Example:

Router(config-subif)#

description Cisco open

Router(config-subif)#

Provides a description of the subinterface for the

administrative user.

Step 3

encapsulation dot1q

vlanID

[

native

|

second-dot1q

]

Example:

Router(config-subif)#

encapsulation dot1q 1

native

Router(config-subif)#

Specifies that IEEE 802.1Q (dot1q)

encapsulation is used on the specified

subinterface.

Step 4

no cdp enable

Example:

Router(config-subif)#

no cdp enable

Router(config-subif)#

Disables the Cisco Discovery Protocol (CDP) on

the wireless interface.

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Chapter 9

Configuring a Wireless LAN Connection

Configuration Example

Repeat these steps to configure more subinterfaces, as needed.

Configuration Example

The following configuration example shows a portion of the configuration file for the wireless LAN

scenario described in the preceding sections.

!

bridge irb

!

interface Dot11Radio0

no ip address

!

broadcast-key vlan 1 change 45

!

encryption vlan 1 mode ciphers tkip

!

ssid cisco

vlan 1

authentication open

wpa-psk ascii 0 cisco123

authentication key-management wpa

!

ssid ciscowep

vlan 2

authentication open

!

ssid ciscowpa

vlan 3

authentication open

Step 5

bridge-group

number

Example:

Router(config-subif)#

bridge-group 1

Router(config-subif)#

Assigns a bridge group to the subinterface.

Note

When the bridge-group command is

enabled, the following commands are

automatically enabled, and cannot be

disabled. If you disable these commands

you may experience an interruption in

wireless device communication.

bridge-group 1

subscriber-loop-control

bridge-group 1 spanning-disabled

bridge-group 1

block-unknown-source

Step 6

exit

Example:

Router(config-subif)#

exit

Router(config)#

Exits subinterface configuration mode, and

enters global configuration mode.

Command

Purpose

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Chapter 9

Configuring a Wireless LAN Connection

Configuration Example

!

speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0

rts threshold 2312

power local cck 50

power local ofdm 30

channel 2462

station-role root

!

interface Dot11Radio0.1

description Cisco Open

encapsulation dot1Q 1 native

no cdp enable

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 spanning-disabled

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

!

interface Dot11Radio0.2

encapsulation dot1Q 2

bridge-group 2

bridge-group 2 subscriber-loop-control

bridge-group 2 spanning-disabled

bridge-group 2 block-unknown-source

no bridge-group 2 source-learning

no bridge-group 2 unicast-flooding

!

interface Dot11Radio0.3

encapsulation dot1Q 3

bridge-group 3

bridge-group 3 subscriber-loop-control

bridge-group 3 spanning-disabled

bridge-group 3 block-unknown-source

no bridge-group 3 source-learning

no bridge-group 3 unicast-flooding

!

interface Vlan1

no ip address

bridge-group 1

bridge-group 1 spanning-disabled

!

interface Vlan2

no ip address

bridge-group 2

bridge-group 2 spanning-disabled

!

interface Vlan3

no ip address

bridge-group 3

bridge-group 3 spanning-disabled

!

interface BVI1

ip address 10.0.1.1 255.255.255.0

!

interface BVI2

ip address 10.0.2.1 255.255.255.0

!

interface BVI3

ip address 10.0.3.1 255.255.255.0

!

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C H A P T E R

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10

Sample Configuration

This chapter collects the results of the Ethernet WAN interface, DHCP, VLAN, Easy VPN, and wireless

interface configurations made in previous chapters. This allows you to view what a basic configuration

provided by this guide looks like in a single sample,

Example 10-1

.

Note

Commands marked by “(

default

)” are generated automatically when you run the

show running-config

command.

Example 10-1

Sample Configuration

Router#

show running-config

Building configuration...

Current configuration : 3781 bytes

!

version 12.3

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname retail

!

boot-start-marker

boot-end-marker

!

enable password cisco123

!

username jsomeone password 0 cg6#107X

aaa new-model

!

aaa group server radius rad_eap

server 10.0.1.1 auth-port 1812 acct-port 1813

!

aaa authentication login eap_methods group rad_eap

aaa session-id common

ip subnet-zero

ip cef

!

vpdn enable

vpdn-group 1

request-dialin

protocol pppoe

!

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