1240 AG Set-up as Repeater Problems

Unanswered Question
Dec 26th, 2007

I have two Cisco 1240AG routers. One is setup as an AP and the other is setup as a repeater to the host (AP). Both of these have static IP's in the same subnet (192.168.1.X). Once the repeater is powered up it does broadcast the signal and connect fine, but it is spitting out an IP address (169.254.X.X) that will not work within our network. I thought it would spawn DHCP through the host. Does anyone know how I can get the repeater to give an IP address of (192.168.1.X). I have tried entering in commands to point to the DHCP server and also for the DHCP IP pool, but nothing seems to work. Any suggestions would be appreciated.

Thanks!

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Scott Fella Thu, 12/27/2007 - 17:23

How are your ap's configured.... repeater BVI interface is on the native vlan? if you can associate to the root ap and get a dhcp, then at least we know that that side is configured right. Have you confirmed that?

kyatchak1 Fri, 12/28/2007 - 05:58

Yes, the repeater can associate to the root AP, but when I connect a handheld to the repeater it is giving me the wrong IP address. I used an IP-helper command to associate my DHCP server with the repeater, but it still gives me the wrong IP. I need it to configure an IP within the range of 192.168.X.X. It gives me an IP of 269.254.X.X. Since it is giving me an IP in the wrong pool of address's I cannot connect my handhelds to the network from the repeater. This is my first experience with Cisco routers so I do not have as much experience with them...I appreciate any suggestions you can give! Thanks!

Scott Fella Fri, 12/28/2007 - 06:52

Can you have a laptop or one of your handhelds connect to the ROOT AP first and verify that that device associates and get the correct DHCP address?

kyatchak1 Fri, 12/28/2007 - 07:44

Yes, I can connect a laptop and all of my handhelds to the root AP with the correct pool of IP addresses (192.168.X.X). As soon as I connect them to the repeater it spawns a new wrong IP (269.254.X.X)

Thanks!

Scott Fella Fri, 12/28/2007 - 08:05

The SSID you are associated to with your handheld (on the root ap), is that the same SSID your repeater ap is associating to?

kyatchak1 Fri, 12/28/2007 - 08:08

Yes it is...same SSID, same WEP encryption, and same MAC address filters.

Scott Fella Fri, 12/28/2007 - 08:26

The 169.254.x.x is a default ip address the client creates when unable to aquire a dhcp address. I would suggest you post your configurations so people can take a look.

kyatchak1 Fri, 12/28/2007 - 11:31

Below is the config file for my repeater router. If anyone can see where the problem lies I would appreciate it!

!

version 12.3

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname (hidden hostname for security purposes)

!

enable secret 5 (deleted for security purposes)

!

ip subnet-zero

!

!

no aaa new-model

!

dot11 ssid (hidden SSID deleted for security purposes)

authentication open

guest-mode

infrastructure-ssid

!

power inline negotiation prestandard source

!

!

username Cisco password (deleted for security purposes)

username admin password (deleted for security purposes)

!

bridge irb

!

!

interface Dot11Radio0

AP# configure terminal

AP (config) # interface dotllradio 0

AP (config-if) # ssid (hidden SSID deleted for security purposes)

AP (config-ssid) # infrastructure-ssid

AP (config-ssid) # exit

AP (config-if) # station-role repeater

AP (config-if) # dot11 extensions aironet

AP (config-if) # parent (MAC address deleted for security purposes)

AP (config-if) # end

!

encryption key 1 size 128bit (deleted for security purposes) transmit-key

encryption mode wep mandatory

!

ssid (hidden SSID deleted for security purposes)

!

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

station-role repeater

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

bridge-group 1 spanning-disabled

!

interface Dot11Radio1

AP# configure terminal

AP (config) # interface dotllradio 0

AP (config-if) # ssid (hidden SSID deleted for security purposes)

AP (config-ssid) # infrastructure-ssid

AP (config-ssid) # exit

AP (config-if) # station-role repeater

AP (config-if) # dot11 extensions aironet

AP (config-if) # parent (MAC address deleted for security purposes)

AP (config-if) # end

!

encryption key 1 size 128bit (deleted for security purposes) transmit-key

encryption mode wep mandatory

!

ssid (hidden SSID deleted for security purposes)

!

speed basic-6.0 9.0 basic-12.0 18.0 basic-24.0 36.0 48.0 54.0

station-role root

bridge-group 1

bridge-group 1 subscriber-loop-control

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

bridge-group 1 spanning-disabled

!

interface FastEthernet0

no ip address

no ip route-cache

duplex auto

speed auto

bridge-group 1

no bridge-group 1 source-learning

bridge-group 1 spanning-disabled

hold-queue 160 in

!

interface BVI1

ip address 192.168.X.X 255.255.255.0

no ip route-cache

!

ip default-gateway 192.168.X.X

ip http server

no ip http secure-server

ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag

!

!

control-plane

!

bridge 1 route ip

!

!

!

line con 0

line vty 0 4

login local

!

end

kyatchak1 Wed, 01/09/2008 - 05:43

I posted the config file for my repeater router and I am still not sure why DHCP will not work correctly...if you have any ideas for me to try please let me know. Thanks!

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