Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

1130AG DHCP Trouble...

Hi guys,

I need a little help.

I Have an Aironet 1130AG with System Software Version: 12.4(10b)JDA3.

I configured the AP with static IP address giving it the possibility to assign 4 IPs. WPA2 with encryption AES-CCMP

The range for DHCP is from xxx.xxx.xxx.251 to xxx.xxx.xxx.254

The problem is that only one IP is assigned and when a client try to receive an IP, it receives a wrong IP, such as 195.152.51.5.

Why the AP doesn't assign all avalaible IPs?

T.I.A.

Alex.

Here's my config.

version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ap
!
no logging on
enable secret 5 $1$lIUT$KLkk7S5ja/apjyxRJCq4G1
!
no aaa new-model
clock timezone +0100 1
no ip dhcp use vrf connected
ip dhcp excluded-address xxx.xxx.xxx.1 xxx.xxx.xxx.250
!
ip dhcp pool company_guest
   network xxx.xxx.xxx.0 255.255.255.0
   default-router xxx.xxx.xxx.103
   dns-server xxx.xxx.xxx.50 xxx.xxx.xxx.53
   lease 0 0 5
!
!
!
dot11 ssid company_guest
   authentication open
   authentication key-management wpa version 2
   guest-mode
   wpa-psk ascii 7 00141A1614540C0903
!
power inline negotiation prestandard source
!
!
username Cisco password 7 884XXXXXXXXXXXX
username administrator privilege 15 password 7 XXXXXXXXXXXXXXXXX

!
bridge irb
!
!
interface Dot11Radio0
no ip address
no ip route-cache
!
encryption mode ciphers aes-ccm tkip
!
ssid company_guest
!
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
!
encryption mode ciphers aes-ccm tkip
!
ssid company_guest
!
no dfs band 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 xxx.xxx.xxx.250 255.255.255.0
no ip route-cache
!
ip default-gateway xxx.xxx.xxx.103
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
logging trap debugging
bridge 1 route ip
!
!
!
line con 0
line vty 0 4
login local
!
end

Everyone's tags (2)
5 REPLIES
New Member

Re: 1130AG DHCP Trouble...

Have you tried to sniff the client traffic to see where its getting that IP from?

New Member

Re: 1130AG DHCP Trouble...

@ mjohnson1914:

Sincerely I not tried to do that, (but I will do in few minutes) but that test computers (hp notebooks) have no access to other lan.  PCs can see only the access point, in fact seems that the 1130 assigns only one IP and after that begins to release "random" IP....

New Member

Re: 1130AG DHCP Trouble...

If your 1130 is sharing a LAN subnet with your production LAN, it looks like your local DHCP server is handing out the DHCP addressing.  I've only set up a DHCP server via the Autonomous AP for interfaces on a different VLAN.  Scratching my head on the correct solution, but I think that's why you're getting that address (look in your DHCP lease table).

New Member

Re: 1130AG DHCP Trouble...

Hello Ryan, thanks for helping me.

In my company we use fixed IPs, we don't use a DHCP (security policies), so we have only the AP that is able to release IP addresses... and doesn't does a good job ... it's a strange thing... it assigns only one of the 4 disponible ...

New Member

Re: 1130AG DHCP Trouble...

It appears as though you may have a rogue DHCP server.  You might want to set up a PC as a DHCP client to track down the IP of the server.  You won't be able to use the WLC as a DHCP server in the way you are trying; the DHCP service on the WLC is used to supply wireless clients a DHCP address, not anything on the wire.  You could, though, configure DHCP services on your router or layer 3 switch and use that a DHCP server much like you have in your configuration.

1590
Views
0
Helpful
5
Replies
CreatePlease to create content