Cisco AIR-LAP1142N-E-K9 bridge and AP mode configuration

[SDiekmeijer]

Hi all,

I've got 2x 1142N access points. Both are running autonomous software.

they're both connected to Cisco 3750G's  (SW1 and SW2) in the following way:

SW1 - AP1 >>>> AP2-SW2

I'm trying to accomplish 2 things here:

- The AP's need to bridge the two wired LAN's  on the 5Ghz radio (dot11radio1)

- The AP's should try to advertise the same WLAN for Clients on the 2.4ghz radio (dot11radio0).

What works?

- The AP's bridge on the 5Ghz radio, this works fine. Clients can connect to devices across the bridge.

- Wireless clients can connect to fine to the wlan-client ssid on AP1. At AP2 the Dot11radio0 refuses to come up with different errors:

*Mar  1 07:10:50.825: %DOT11-4-NO_VALID_INFRA_SSID: No infrastructure SSID configured. Dot11Radio0 not started.
03:39:22: DOT11 EVENT:disc_start:Could not configure the radio.
*Mar  1 07:10:50.825: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
03:40:22: DOT11 EVENT:disc_config: root set device to 4D
*Mar  1 07:12:01.902: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate: No Response
*Mar  1 07:12:06.912: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associate: Rcvd response from 64d9.896d.cc80 channel 13 2928

I'm using the configuration as per below; anybody got a clue what I'm doing wrong here?

Configuration:

!
! AP1:
!
dot11 syslog
!
dot11 ssid backhaul
   authentication open
!
dot11 ssid wlan-client
   authentication open
   authentication key-management wpa version 2
   guest-mode
   wpa-psk ascii 0 test
!
bridge irb
!
!
interface Dot11Radio0
 description ; 2.4 Ghz radio
 no ip address
 no ip route-cache
 !
 encryption mode ciphers aes-ccm
 !
 ssid wlan-client
 !
 antenna gain 0
 station-role root
 no cdp enable
 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
 no ip address
 no ip route-cache
 !
 ssid backhaul
 !
 antenna gain 0
 no dfs band block
 channel dfs
 station-role root bridge
 bridge-group 1
!
interface GigabitEthernet0
 no ip address
 no ip route-cache
 duplex auto
 speed auto
 no keepalive
 bridge-group 1
 bridge-group 1 spanning-disabled
!
interface BVI1
 ip address dhcp client-id GigabitEthernet0
 no ip route-cache
!

!
! AP2:
!
dot11 ssid backhaul
   authentication open
   infrastructure-ssid
!
dot11 ssid wlan-client
   authentication open
   authentication key-management wpa version 2
   guest-mode
   infrastructure-ssid
   wpa-psk ascii 7 0830747B2C3B34003F3A5A361E032A23313617401711212463
!
bridge irb
!
!
interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption mode ciphers aes-ccm
 !
 ssid wlan-client
 !
 antenna gain 0
 station-role non-root wireless-clients
 bridge-group 1
 bridge-group 1 subscriber-loop-control
!
interface Dot11Radio1
 no ip address
 no ip route-cache
 !
 ssid backhaul
 !
 antenna gain 0
 station-role workgroup-bridge
 bridge-group 1
!
interface GigabitEthernet0
 no ip address
 no ip route-cache
 duplex auto
 speed auto
 no keepalive
 bridge-group 1
 bridge-group 1 spanning-disabled
!
interface BVI1
 ip address dhcp client-id GigabitEthernet0
 no ip route-cache
!
!

[Stephen Rodriguez]

On AP 2 you need to remove the Infrastructure-ssid command under the wlan-client SSID.  That command is for telling the AP that it uses that SSID to connect to another radio.

HTH,

Steve

[SDiekmeijer]

Hi Steve,

I did that. Then i get the following error:

%DOT11-4-NO_VALID_INFRA_SSID: No infrastructure SSID configured. Dot11Radio0 not started.

My SSID configuration is as follows now:

AP2:

!
dot11 ssid wlan-bb
   authentication open
   infrastructure-ssid
!
dot11 ssid wlan-hs
   authentication open
   authentication key-management wpa version 2
   guest-mode
   wpa-psk ascii 0 test
!

Do you know how to explain that error?

AP1:

!
dot11 ssid wlan-bb
   authentication open
   infrastructure-ssid
!
dot11 ssid wlan-hs
   authentication open
   authentication key-management wpa version 2
   guest-mode
   wpa-psk ascii 0 test

[Stephen Rodriguez · Accepted solution]

on AP 2 under the Radio 0 it should be "station-role root", not non-root. Sorry I missed that in the config earlier.

HTH,

Steve

[SDiekmeijer]

That was it indeed Steve! Many thanks, it works like a charm now :)