Question about Cisco Aironet 1131AG 802.11a, 802.11g/b (746320933474) Wireless Access Point

1 Answer

Can't get an IP address over time.

I am using Cisco ISO Version 12.4 Version 12.4 on my 1131AG access point. My problem is over about a week or so of up time I can't get an IP address from the AP. Even when I put a manual IP address for my wireless card I still cant get out. The only solution I have found is just reboot the AP. Here is a copy of my configuration.

version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname xxx
no logging console
enable secret aaa new-model
aaa authentication fail-message ^CCCCCC

aaa authentication login default group tacacs+ local enable
aaa authentication login CONSOLE line
aaa authorization console
aaa authorization config-commands
aaa authorization exec default group tacacs+ local if-authenticated
aaa authorization exec CONSOLE if-authenticated
aaa accounting exec default stop-only group tacacs+
aaa accounting commands 0 default stop-only group tacacs+
aaa accounting commands 1 default stop-only group tacacs+
aaa accounting commands 15 default stop-only group tacacs+
aaa accounting network default stop-only group tacacs+
aaa accounting connection default stop-only group tacacs+
aaa accounting system default stop-only group tacacs+
aaa session-id common
resource policy
led display alternate
ip subnet-zero
no ip domain lookup
dot11 ssid xxx
authentication open
power inline negotiation prestandard source
username Cisco password 7 !
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid xxx
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
ssid xxx
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
hold-queue 160 in
interface FastEthernet0.1
encapsulation dot1Q 1 native
no ip route-cache
no snmp trap link-status
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface FastEthernet0.101
encapsulation dot1Q 101
ip address
no ip route-cache
no snmp trap link-status
bridge-group 101
no bridge-group 101 source-learning
bridge-group 101 spanning-disabled
interface BVI1
no ip address
no ip route-cache
interface BVI101
no ip address
no ip route-cache
ip default-gateway
ip http server
no ip http secure-server
ip http help-path
ip tacacs source-interface FastEthernet0.101
snmp-server community
tacacs-server host
tacacs-server host
tacacs-server timeout 3
tacacs-server directed-request
tacacs-server key 7
bridge 1 route ip

line con 0
password 7
authorization exec CONSOLE
login authentication CONSOLE
line vty 0 4
password 7

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  • 3 more comments 
  • blewbuss Nov 05, 2008

    Cisco IOS Software, C1130 Software (C1130-K9W7-M), Version 12.4(3g)JA, RELEASE SOFTWARE (fc2)
    Technical Support:
    Copyright (c) 1986-2007 by Cisco Systems, Inc.
    Compiled Fri 27-Apr-07 02:01 by pwade

    ROM: Bootstrap program is C1130 boot loader
    BOOTLDR: C1130 Boot Loader (C1130-BOOT-M) Version 12.3(8)JEA, RELEASE SOFTWARE (fc2)

    xxxx uptime is 3 hours, 25 minutes
    System returned to ROM by reload
    System image file is "flash:/c1130-k9w7-mx.124-3g.JA/c1130-k9w7-mx.124-3g.JA"

    This product contains cryptographic features and is subject to United
    States and local country laws governing import, export, transfer and
    use. Delivery of Cisco cryptographic products does not imply
    third-party authority to import, export, distribute or use encryption.
    Importers, exporters, distributors and users are responsible for
    compliance with U.S. and local country laws. By using this product you
    agree to comply with applicable laws and regulations. If you are unable
    to comply with U.S. and local laws, return this product immediately.

    A summary of U.S. laws governing Cisco cryptographic products may be found at:

    If you require further assistance please contact us by sending email to

    cisco AIR-AP1131AG-A-K9 (PowerPCElvis) processor (revision A0) with 24566K/8192K bytes of memory.
    Processor board ID FTX1124T586
    PowerPCElvis CPU at 262Mhz, revision number 0x0950
    Last reset from reload
    1 FastEthernet interface
    2 802.11 Radio(s)

    32K bytes of flash-simulated non-volatile configuration memory.
    Base ethernet MAC Address: 00:1B:D5:10:D0:A2
    Part Number : 73-8962-12
    PCA Assembly Number : 800-24818-11
    PCA Revision Number : B0
    PCB Serial Number :

    Top Assembly Part Number :

    Top Assembly Serial Number :

    Top Revision Number : A0
    Product/Model Number : AIR-AP1131AG-A-K9

    Configuration register is 0xF

  • blewbuss Nov 06, 2008

    The APs are not using DHCP. We have a (dare I say it) Nomadix box handling all the DHCP. I'll try to upgrade the firmware on the APs and see what happens. Thanks you for your input.

  • detrosuk May 11, 2010

    can you let us know what revision number your using

    once connected to the AP at the command prompt type

    sh ver

    just copy and paste the complete results

  • Anonymous Mar 25, 2014

    Cisco 1020 default ip address

  • Anonymous Mar 25, 2014

    i can't find any documentation, i can't manage it and find default ip address, login and password



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  • 53 Answers

Ok I have guessed a couple of things. Here goes.
the version of software 12.4 (3g) is very old
I think that you have DHCP configured on the AP

the cisco site lists loads of issues regarding DHCP and memory leaks in numerous guises with not only your IOS version but newer versions too.

the reason why I have homed in on this is that you say that the unit works for about a week then essentially stops until you reboot the AP. (I guess that you do this by power cycling not by issuing the reload command) in the short term you have fixed the problem.

I would suggest that you upgrade the IOS to something newer. the current version listed is 12.4(22)T if it's of any help.

lastly as you know when the system actually goes wrong. You are able to issue the reload command with additional settings so it could reload @ X date and time if NTP is configured or you can specify a time duration in minutes if preferred.

I can't think of anything else I afraid.

Posted on Nov 06, 2008


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1. blank.gifOpen the access point cover

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