AP will not pass DHCP

Unanswered Question
Sep 2nd, 2010

Hey all,  I'm hoping someone can help with a problem I am having with a AIRONET 1130AG Access point.

I have installed quite a few of these but this one has me baffeled.  Now, I'm not a CCNA or anything like that.

I set up using the GUI;  I use a simple WPA.

My devices connect with "Limited or no Connectivity"    If I hard code an address, devices work fine.  If I attach them to the switch, they obtain an address on the nic AND the Wirless connections.

It seems the AP just wont let DHCP pass

If i check the AP,  it shows my devices, but no IP.  Under the log, the last entry say  "interface Dot11Radio0, Deauthenticating Station (mac address) reason:  Previous authentication no longer valid"

Any advice is greatly appreciated.

Thanks,

John

I have this problem too.
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Surendra BG Fri, 09/03/2010 - 09:44

AP configuration please where is the DHCP configured??

regards

surendra

jrock_118 Fri, 09/03/2010 - 13:43

I have DHCP running on a Domain Controller.  Originally DHCP was running on a router, but I changed it to the DC to see if it made a diference.  it did not.

Here is my #sh config.  Probably more info than you needed.  Thanks for taking a look

ap#sh config
Using 1692 out of 32768 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ap
!
enable secret 5 $1$nIl9$Sp2TU/oQNSjgLEhgPoKPj.
!
no aaa new-model
!
!
dot11 syslog
!
dot11 ssid AMHS1
   authentication open
   authentication key-management wpa optional
   guest-mode
   wpa-psk ascii 7 11594955464153543B2B27283B30272B031305
!
!
!
username Cisco password 7 01300F175804
!
!
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption mode ciphers tkip wep128
!
ssid AMHS1
!
speed  5.5 basic-11.0 6.0 9.0 12.0 18.0 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 Dot11Radio1
no ip address
no ip route-cache
shutdown
!
encryption mode ciphers tkip wep128
!
ssid AMHS1
!
dfs band 3 block
channel dfs
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
!
interface BVI1
ip address 172.20.1.86 255.255.255.0
no ip route-cache
!
ip default-gateway 172.20.1.30
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
!
!
!
line con 0
line vty 0 4
login local
!
end

ap#

Thanks again,

John

George Stefanick Fri, 09/03/2010 - 16:45

can you post the switch config that this AP connects too?

Do you have IP helpers set up?

jrock_118 Fri, 09/03/2010 - 16:55

No programming was done on the switch.  It's just out of the box.

Right now I have an old linksys wireless connected to the switch with no security, and clients connect to that just fine.

I set the AP up through the GUI, I didnt see an IP helper option.  Not sure if it set defaulted to on/off.

Not really familiar with IP helper.

Thank you

George Stefanick Fri, 09/03/2010 - 16:59

Is your GW really .30?

nterface BVI1
ip address 172.20.1.86 255.255.255.0
no ip route-cache
!
ip default-gateway 172.20.1.30

jrock_118 Fri, 09/03/2010 - 18:23

No DHCP running on the Linksys.  Yea .30 is my gateway.  Using a SonicWALL firewall

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