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Cisco 1142 - WLC 5508

Srinivasan K
Level 1
Level 1

Hi All,

Having an issue with AP 1142N, attached to WLC 5508.

Initially configured the AP with IOS c1140-k9w8-tar.152-4.JA1.tar though all other AP's in the network are running12.4 version. Decided to change the OS from 15.2 to 12.4.

Migrated LWAPP to IOS which worked fine and AP become Autonomous.

However, when I try to migrate (IOS to LWAPP)  with c1140-rcvk9w8-tar.124-23c.JA7.tar, the AP goes through all the processes gets reloaded and comes back with 15.2 image.  Not sure where it is picking up the image from. I want to remove the image from WLC and get this AP in 12.4 only. Does anyone faced this issue before, could you provide me help to resolve this please.

Regards,

Srini K

14 Replies 14

Why do you want to your LWAPP to have 12.4 ?  What's the problem of your LWAPP getting 15.2 ?

The image use for conversion is just recovery image just to enable AP to register for a WLC. Once register WLC will push the complete image for AP to download.

HTH

Rasika

**** Pls rate all useful responses ****

Rasika, thanks for the reply. I've got 5 WiFi profiles on our WLC. While on 15.2, the AP is getting only one of those 5.

All other AP's (14) are currently running 12.4 which picks up all the 5 profiles. This is the reason I want to move it back to 12.4

That cannot be AP image related. What are the WLAN ID used for those profiles ? Are you using AP-group to control SSID advertisement or everything in default-apgroup ?

HTH

Rasika

Abhishek Abhishek
Cisco Employee
Cisco Employee

That might be the issue of upgrade to 15.2 Please send a copy of config for proper view of the problem.

Copy of AP config or WLC?

Configuration of the AP

Thanks for looking into this Abhishek

Building configuration...

Current configuration : 17798 bytes

!

! Last configuration change at 20:53:30 UTC Tue Oct 8 2013

version 15.2

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname CH2F

!

!

logging rate-limit console 9

enable secret 5 $1$GG1Q$sGVWQtvpoHcJ5ps3H37wA1

!

aaa new-model

!

!

aaa authentication login default local

!

!

!

!

!

aaa session-id common

ip cef

!

!

!

eap profile lwapp_eap_profile

method fast

!

crypto pki token default removal timeout 0

!

crypto pki trustpoint airespace-old-root-cert

revocation-check none

rsakeypair Cisco_IOS_MIC_Keys

!

crypto pki trustpoint airespace-new-root-cert

revocation-check none

rsakeypair Cisco_IOS_MIC_Keys

!

crypto pki trustpoint airespace-device-root-cert

revocation-check none

rsakeypair Cisco_IOS_MIC_Keys

!

crypto pki trustpoint cisco-root-cert

revocation-check none

rsakeypair Cisco_IOS_MIC_Keys

!

crypto pki trustpoint Cisco_IOS_MIC_cert

revocation-check none

rsakeypair Cisco_IOS_MIC_Keys

!

!

crypto pki certificate chain airespace-old-root-cert

certificate ca 00

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  A949FDF8 7711D518 A80E203D A12BEBDC 6963EDA7 B76079A3 22380C96 0CB8D324

  CADD949D EA39E0EF 033D

        quit

crypto pki certificate chain airespace-new-root-cert

certificate ca 00

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  7C442027 E6241198 B0E002DE 9E06D64F 0D538987 96C1C0DB 12B0F581 6FED

        quit

crypto pki certificate chain airespace-device-root-cert

certificate ca 03

  3082047F 308203A8 A0030201 02020103 300D0609 2A864886 F70D0101 04050030

  81A6310B 30090603 55040613 02555331 13301106 03550408 130A4361 6C69666F

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        quit

crypto pki certificate chain cisco-root-cert

certificate ca 5FF87B282B54DC8D42A315B568C9ADFF

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        quit

crypto pki certificate chain Cisco_IOS_MIC_cert

certificate 1994FEBE0000000201AD

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  7EB44DDC 71A3D32C 374D822C C809E556

        quit

certificate ca 6A6967B3000000000003

  308204D9 308203C1 A0030201 02020A6A 6967B300 00000000 03300D06 092A8648

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  01823714 02040C1E 0A005300 75006200 43004130 1F060355 1D230418 30168014

  27F3C815 1E6E9A02 0916AD2B A089605F DA7B2FAA 30430603 551D1F04 3C303A30

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  0166D410 88A256E5 3C57EDE9 02A84891 6307AB61 264B1A13 9FE4DCDA 5F

        quit

memory validate-checksum 30

username Cisco secret 5 $1$6VBf$qsf93jjIbMK.00i0wDxht0

!

!

ip ssh version 2

bridge irb

!

!

!

interface Dot11Radio0

antenna gain 0

mbssid

power client local

packet retries 64 drop-packet

no cdp enable

!

interface Dot11Radio1

antenna gain 0

mbssid

power client local

packet retries 64 drop-packet

no cdp enable

!

interface GigabitEthernet0

duplex auto

speed auto

no keepalive

!

interface GigabitEthernet0.1

encapsulation dot1Q 1 native

bridge-group 1

bridge-group 1 spanning-disabled

no bridge-group 1 source-learning

!

interface BVI1

ip address 10.44.4.20 255.255.255.0

!

ip default-gateway 10.44.4.1

ip forward-protocol nd

no ip http server

!

logging trap emergencies

logging origin-id string AP:d48c.b5b0.1f3f

logging facility kern

logging snmp-trap notifications

logging snmp-trap informational

logging snmp-trap debugging

logging 255.255.255.255

!

bridge 1 protocol ieee

bridge 1 route ip

!

line con 0

line vty 0 4

transport input telnet

line vty 5 15

transport input telnet

!

end

However, when I try to migrate (IOS to LWAPP)  with c1140-rcvk9w8-tar.124-23c.JA7.tar, the AP goes through all the processes gets reloaded and comes back with 15.2 image.  Not sure where it is picking up the image from.

See the filename with a prefix "RCV"?  It's called a "Recovery" file.  I'd like to call this as a "lite" IOS.  It's designed to be used by APs to operate in a BASIC status.  It is NOT designed to operate in production.  The main function of the RCV file is to FIND the WLC.  Once the AP is able to join to a WLC, the WLC will then push the correct or "full" IOS down to the AP.

It doesn't matter if you manually upload the full IOS to the AP, at the end of the day, the WLC will decide which IOS your AP should use (in a controller-based environment).

So don't even bother deciphering why your controller-based AP is using 12.4 or 15.0 IOS as it won't make any difference.

Thanks for the message Leo.

I know about the lite IOS. The problem here is none of my other AP's (most same models) receive 15.2 except the problamatic one.

Even I thought it wouldn't make any difference, but while on 15.2 the AP couldn't see any more than 1 WiFi profile. Not sure if its a bug or some configuration issue. Remaining 14 AP's in my network connected to the same WLC, works fine with all 5 profiles (Running 12.4)

What everyone is saying is that the WLC provides the firmware to the access points. Post a screen shot of what your seeing.

Sent from Cisco Technical Support iPhone App

-Scott
*** Please rate helpful posts ***

Even I thought it wouldn't make any difference, but while on 15.2 the AP couldn't see any more than 1 WiFi profile. Not sure if its a bug or some configuration issue. Remaining 14 AP's in my network connected to the same WLC, works fine with all 5 profiles (Running 12.4)

This has got NOTHING to do with whether or not your AP is running 12.4 or 15.0 so you need to refrain from thinking this is the case.  (You confuse people who don't know/read and they will start posting recommendatations that doesn't make sense or relevance.)

It sounds like you've got issues with your AP Groups configuration.

Post the output to the command "sh wlan apgroup".

Abha Jha
Cisco Employee
Cisco Employee

Have you used upgrade tool method or the archive-download method??

If upgrade tool have you checked for any errors during conversion and have you tried the other method??

Cisco recommends to clear the configuration before you convert an AP to
LWAPP. 

Then clear all config and only leave env_vars and the IOS image in flash:.
You can then upgrade again.

These tips can be used when you upgrade from autonomous to LWAPP       mode:

  • If the NVRAM is not cleared when the controller tries to write to it           after the conversion, problems are caused. Cisco recommends to clear the           configuration before you convert an AP to LWAPP. In order to clear the           configuration:

    • From the IOS GUI—Go to System Software > System             Configuration > Reset to Defaults, or Reset to Defaults             Except IP.

    • From CLI—Issue the write erase and             reload commands at the CLI and do not allow the             configuration to be saved when prompted.

      This also makes the text file of APs to be converted by the Upgrade             Tool more simple to create as the entries become ,Cisco,Cisco,Cisco.

  • Cisco recommends that you use the tftp32. You can download the latest           TFTPD server at http://tftpd32.jounin.net/ leavingcisco.com.

  • If a firewall or an access control list is enabled during the upgrade           process, the upgrade tool can become unable to copy the file that contains           environmental variables from a workstation to an AP.

    If a firewall or access control list blocks the copy operation and           you select the Use Upgrade Tool TFTP Server option, you cannot proceed with the           upgrade because the tool cannot update the environmental variables, and the           image upload to the AP fails.

  • Double check the image you are trying to upgrade to. The upgrade from           IOS to LWAPP images is different from the normal IOS images.

    Under My Documents/My Computer--> Tools--> Folder Options, make           sure you uncheck the Hide file extensions for known file types check box.

  • Always make sure to use the latest available Upgrade Tool and Upgrade           Recovery Image. The latest versions are available in the Wireless Software           Center.

  • An AP can not boot a .tar image file. It is an           archive, similar to zip files. You need to unbundle the .tar file into AP flash with the archive download command, or else pull the bootable image out of the tar file first then put the           bootable image into AP flash.

Thanks Jha, I used archive-download method. Infact I went to a level of doing factory reset on the AP.

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