Cisco 1200 and 1300 problem

[UncleRobert999]

I have a 1200 WAP and 1300 Bridge setup between 2 buildings, external antennas, no security or encryption (for de-bugging) and have the following problem:
Approximately every 20 minutes, the 1200 deauthenticates the 1300 and about a minute later, re-authenticates it. During this time, I lose my connection. I've been working with Cisco for the better part of 3 weeks without solving this. I've replaced the 1300, tried every configuration I could think of, etc.etc. One unusual indication is that the radio "Link Test" will fail unless the packet size is set to "1", and it will pass every time with packet size set to 1.

I just can't understand why it would de-authenticate the radio association and not give a reason in the event log.

Has anybody out there had any thing like this? I can find no timer configuration whatsoever in the setup. Why 20 minutes? And it is almost to the second every time.

 

[reliancetech]

I did face similar problem in my network but I was connecting 802.11 compatible device with AP not a 1300Bridge as in user case.

Can you send run config of both the devices?

 

[UncleRobert999]

Here's the 1200:
!
! Last configuration change at 15:42:39 R Thu Mar 17 2005
! NVRAM config last updated at 08:43:00 R Tue Mar 22 2005
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec localtime show-timezone
service password-encryption
!
hostname FloridaCityWAP
!
enable secret 5 $1$43Zb$pEh42.iK7wljlO4Kufoc7.
!
username ralexander privilege 15 password 7 121809120A5A585778
username Cisco privilege 15 password 7 13261E010803
clock timezone R -5
clock summer-time R recurring
ip subnet-zero
!
no aaa new-model
dot11 activity-timeout unknown default 600
dot11 activity-timeout client default 600
dot11 activity-timeout repeater default 600
dot11 activity-timeout workgroup-bridge default 600
dot11 activity-timeout bridge default 600
dot11 network-map
!
!
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!
ssid FloridaCity
authentication open
infrastructure-ssid
!
short-slot-time
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
channel 2412
station-role root
payload-encapsulation dot1h
infrastructure-client
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
!
interface BVI1
ip address 192.1.4.71 255.255.255.0
no ip route-cache
!
ip default-gateway 192.1.4.239
ip http server
no ip http secure-server
ip http help-path

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

ip radius source-interface BVI1
logging snmp-trap emergencies
logging snmp-trap alerts
logging snmp-trap critical
logging snmp-trap errors
logging snmp-trap warnings
snmp-server view dot11view ieee802dot11 included
snmp-server community Public RO
snmp-server location Florida City WTP
snmp-server contact Robert Alexander
snmp-server chassis-id Cisco 1200 WAP
snmp-server enable traps tty
bridge 1 route ip
!
!
wlccp ap username Cisco password 7 02250D480809
!
line con 0
transport preferred all
transport output all
line vty 0 4
login local
transport preferred all
transport input all
transport output all
line vty 5 15
login
transport preferred all
transport input all
transport output all
!
end

Here's the 1300:
!
! Last configuration change at 11:46:50 GMT Tue Mar 22 2005
! NVRAM config last updated at 11:46:50 GMT Tue Mar 22 2005
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname FCBridge
!
enable secret 5 $1$87tL$pb/IqsHIThWnkOZnGDU.f1
!
username Cisco password 7 02250D480809
username ralexander privilege 15 password 7 094D420C0154434159
clock timezone GMT -5
ip subnet-zero
!
no aaa new-model
dot11 network-map
!
!
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!
ssid FloridaCity
authentication open
infrastructure-ssid
!
short-slot-time
parent 1 0011.5c51.363f
parent timeout 10
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 4000
rts retries 128
packet retries 128
station-role workgroup-bridge
antenna receive right
antenna transmit right
infrastructure-client
bridge-group 1
bridge-group 1 spanning-disabled
!
interface FastEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
!
interface BVI1
ip address 192.1.4.72 255.255.255.0
no ip route-cache
!
ip default-gateway 192.1.4.239
ip http server
no ip http secure-server
ip http help-path

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

ip radius source-interface BVI1
logging history informational
logging snmp-trap emergencies
logging snmp-trap alerts
logging snmp-trap critical
logging snmp-trap errors
logging snmp-trap warnings
snmp-server community Public RW
snmp-server enable traps tty
bridge 1 route ip
!
!
wlccp ap username Cisco password 7 072C285F4D06
wlccp ap wds ip address 192.1.4.71
!
line con 0
transport preferred all
transport output all
line vty 0 4
login local
transport preferred all
transport input all
transport output all
line vty 5 15
login
transport preferred all
transport input all
transport output all
!
end

 

[rtfmdude]

UncleRobert999,

Can you run any dot11radio debugs or anything? Let's see if we can trace it there. I don't have an AP to parse out any debugs right now, but try doing a 'debug dot11 ?' and see what's there.

 

[reliancetech]

2 things I will like to try at AP1200.

1) Remove all dot11 activity-timeout commands. These commands are not much help other than Qos kind of effect.

2) conf#int dot11redio 0
conf-if#antenna gain 72

In my network I found improvement increasing antenna gain.

Regards,

Nayan