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. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

AP Controller IP DHCP Problem

Dear all,

its not my first config or location but with the 2600 I have now a problem.

Any ideas?

*Mar  1 00:17:04.255: %CAPWAP-3-DHCP_RENEW: Could not discover WLC using DHCP IP. Renewing DHCP IP.
*Mar  1 00:17:07.327: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.X.Y.101, mask 255.255.255.0, hostname APc08c.6024.cfc8

Translating "CISCO-CAPWAP-CONTROLLER"...domain server (255.255.255.255)
*Mar  1 00:17:14.255: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.A.B.30 obtained through DHCP

The AP will use the 10.A.B.30 as Controller...when I enter the Controller IP manually it works..

           

best regards,

Sebastian

16 REPLIES
VIP Purple

AP Controller IP DHCP Problem

In the normal scenario what are the console output after this point ? It says AP got the WLC IP via DHCP option 43. Then it should send join request to this WLC.

*Mar  1 00:17:14.255: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.A.B.30 obtained through DHCP

Rasika

AP Controller IP DHCP Problem

Hi Rasika,

correct I know but any idea why he did it not in my case??...a second also not..

manually he joined..

I never had problems with my DHCP configs in the past and the 1140 e.g. and of course I used the correct vendor code "Cisco AP c2600"

Sebastian

VIP Purple

AP Controller IP DHCP Problem

If you do not get any output after that point, it is strainge.

I would check console logging level & make sure it is "debugging"

What is the AP console CLI output of "show capwap client rcb" looks like when it stuck at that point. I would try "clear capwap private-config"  & then reload AP to see it makes any diffrence

HTH

Rasika

AP Controller IP DHCP Problem

there are some more outputs...after the once I posted u will see this here..

*Mar  1 00:16:18.755: %IP-3-DESTHOST: src=10.X.Y.101, dst=0.0.0.0, NULL desthost -Process= "CAPWAP CLIENT", ipl= 0, pid= 76

-Traceback= 219A458z 23A2554z 23A3138z 23A3894z 23A38F0z 2330844z 26E8154z 26EE16Cz 2731068z 271DB88z 271F584z 2716590z 2720140z 2716894z 272690Cz 2732018z

*Mar  1 00:16:18.755: %IP-3-DESTHOST: src=10.75.4.101, dst=0.0.0.0, NULL desthost -Process= "CAPWAP CLIENT", ipl= 0, pid= 76

-Traceback= 219A458z 23A2554z 23A3138z 23A3894z 23A38F0z 2330844z 26E8154z 26EE16Cz 2731068z 271DB88z 271F584z 2716590z 2720140z 2716894z 272690Cz 2732018z

after a lot of this he started the default process...

renew IP

try DNS

etc.etc.

renew IP

---

--

--

Tomorrow back in the office I will try your debug command..I tried debug DHCP but see no problems comming in..

Hall of Fame Super Gold

AP Controller IP DHCP Problem

its not my first config or location but with the 2600 I have now a problem.

Sebastian,

I presume your WLC is running AT LEAST 7.2.110.0 firmware?

Console into the AP and boot the AP.  I post the entire bootup process.

Can you also provide the following information:

1.  WLC:  sh sysinfo;

2.  WLC:  sh time;

3.  AP:  sh version;

4.  AP:  sh ip int brief; and

5.  AP:  sh inventory

*Mar  1 00:17:14.255: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.A.B.30 obtained through DHCP

The date and time of this log is very suspicious.  It could reveal why when you post the output I've requested.

AP Controller IP DHCP Problem

yes 7.4.100.0

and here u are:

(Cisco Controller) >show sysinfo

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 7.4.100.0
Bootloader Version............................... 1.0.1
Field Recovery Image Version..................... 6.0.182.0
Firmware Version................................. FPGA 1.3, Env 1.6, USB console 1.27
Build Type....................................... DATA + WPS

System Name...................................... NWLCBB1701
System Location.................................. somewhere

System Contact................................... Networkteam
System ObjectID.................................. 1.3.6.1.4.1.9.1.1069
Redundancy Mode.................................. Disabled
IP Address....................................... 10.A.B.30
Last Reset....................................... Software reset
System Up Time................................... 103 days 15 hrs 12 mins 58 secs
System Timezone Location.........................
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180

Configured Country............................... Multiple Countries:CH,DE,DK,GB,J2,J3,J4,LI,SE,TH,TR
Operating Environment............................ Commercial (0 to 40 C)

--More-- or (q)uit
Internal Temp Alarm Limits....................... 0 to 65 C
Internal Temperature............................. +39 C
External Temperature............................. +25 C
Fan Status....................................... OK

State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 9
Number of Active Clients......................... 88

Memory Current Usage............................. Unknown
Memory Average Usage............................. Unknown
CPU Current Usage................................ Unknown
CPU Average Usage................................ Unknown

Burned-in MAC Address............................ 44:2B:03:B4:83:A0
Power Supply 1................................... Present, OK
Power Supply 2................................... Present, OK
Maximum number of APs supported.................. 300

(Cisco Controller) >show time

Time............................................. Fri Oct 11 07:46:36 2013

Timezone delta................................... 0:0
Timezone location................................

NTP Servers
    NTP Polling Interval.........................     86400

     Index     NTP Key Index     NTP Server      NTP Msg Auth Status
    -------  ---------------------------------------------------------------
       1              0          10.a.b.1       AUTH DISABLED

from the AP

APc08c.6024.cfc8#sh version

Cisco IOS Software, C2600 Software (AP3G2-RCVK9W8-M), Version 15.2(4)JA1, RELEA

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Tue 30-Jul-13 23:08 by prod_rel_team

ROM: Bootstrap program is C2600 boot loader

BOOTLDR: C2600 Boot Loader (AP3G2-BOOT-M) LoaderVersion 12.4(25e)JA1, RELEASE S

APc08c.6024.cfc8 uptime is 4 minutes

System returned to ROM by power-on

System image file is "flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-xx"

Last reload reason:

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:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

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

export@cisco.com.

cisco AIR-CAP2602E-E-K9 (PowerPC) processor (revision A0) with 180214K/81920K b

Processor board ID FCZ1737D1EY

PowerPC CPU at 800Mhz, revision number 0x2151

Last reset from power-on

LWAPP image version 7.5.1.73

1 Gigabit Ethernet interface

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: C0:8C:60:24:CF:C8

Part Number                         : 73-14511-02

PCA Assembly Number                 : 800-37898-01

PCA Revision Number                  : A0

PCB Serial Number                   : FOC17331GXD

Top Assembly Part Number             : 800-38357-01

Top Assembly Serial Number           : FCZ1737D1EY

Top Revision Number                 : A0

Product/Model Number                 : AIR-CAP2602E-E-K9

Configuration register is 0xF

APc08c.6024.cfc8#sh ip int brief

Interface                 IP-Address     OK? Method Status               Pro

BVI1                       10.X.Y.101     YES DHCP   up                   up

GigabitEthernet0           unassigned     NO unset up                   up

GigabitEthernet0.1         unassigned     YES unset up                   up

APc08c.6024.cfc8#sh inventory

APc08c.6024.cfc8#

Boot Process will follow separatly...

AP Controller IP DHCP Problem

IOS Bootloader - Starting system.

flash is writable

FLASH CHIP: Numonyx Mirrorbit (0089)

Xmodem file system is available.

flashfs[0]: 10 files, 2 directories

flashfs[0]: 0 orphaned files, 0 orphaned directories

flashfs[0]: Total bytes: 31997952

flashfs[0]: Bytes used: 7207936

flashfs[0]: Bytes available: 24790016

flashfs[0]: flashfs fsck took 14 seconds.

Reading cookie from SEEPROM

Base Ethernet MAC address: c0:8c:60:24:cf:c8

Ethernet speed is 1000 Mb - FULL Duplex

Loading "flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-mx"...###########################

File "flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-mx" uncompressed and installed, entry point: 0x2003000

executing...

Secondary Bootloader - Starting system.

Xmodem file system is available.

flashfs[0]: 10 files, 2 directories

flashfs[0]: 0 orphaned files, 0 orphaned directories

flashfs[0]: Total bytes: 31997952

flashfs[0]: Bytes used: 7207936

flashfs[0]: Bytes available: 24790016

flashfs[0]: flashfs fsck took 7 seconds.

Base Ethernet MAC address: c0:8c:60:24:cf:c8

Boot CMD: 'boot flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-xx;flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-mx'

Loading "flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-xx"...#####################

File "flash:/ap3g2-rcvk9w8-mx/ap3g2-rcvk9w8-xx" uncompressed and installed, entry point: 0x2003000

executing...

             Restricted Rights Legend

Use, duplication, or disclosure by the Government is

subject to restrictions as set forth in subparagraph

(c) of the Commercial Computer Software - Restricted

Rights clause at FAR sec. 52.227-19 and subparagraph

(c) (1) (ii) of the Rights in Technical Data and Computer

Software clause at DFARS sec. 252.227-7013.

           cisco Systems, Inc.

           170 West Tasman Drive

           San Jose, California 95134-1706

Cisco IOS Software, C2600 Software (AP3G2-RCVK9W8-M), Version 15.2(4)JA1, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Tue 30-Jul-13 23:08 by prod_rel_team

Initializing flashfs...

flashfs[2]: 10 files, 2 directories

flashfs[2]: 0 orphaned files, 0 orphaned directories

flashfs[2]: Total bytes: 31739904

flashfs[2]: Bytes used: 7207936

flashfs[2]: Bytes available: 24531968

flashfs[2]: flashfs fsck took 8 seconds.

flashfs[2]: Initialization complete.

flashfs[3]: 0 files, 1 directories

flashfs[3]: 0 orphaned files, 0 orphaned directories

flashfs[3]: Total bytes: 11999232

flashfs[3]: Bytes used: 1024

flashfs[3]: Bytes available: 11998208

flashfs[3]: flashfs fsck took 0 seconds.

flashfs[3]: Initialization complete.

Copying radio files from flash: to ram:

%Error opening flash:/ap3g2-rcvk9w8-mx/E2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/B2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/V2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/X2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/Y2.bin (No such file or directory)

Uncompressing radio files...

File not found: flash:/ap3g2-rcvk9w8-mx/8004.img

File not found: flash:/ap3g2-rcvk9w8-mx/E5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/B5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/V5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/X5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/Y5.bin

...done Initializing flashfs.

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

no ip http server

       ^

% Invalid input detected at '^' marker.

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:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

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

export@cisco.com.

cisco AIR-CAP2602E-E-K9 (PowerPC) processor (revision A0) with 180214K/81920K bytes of memory.

Processor board ID FCZ1737D1EY

PowerPC CPU at 800Mhz, revision number 0x2151

Last reset from power-on

LWAPP image version 7.5.1.73

1 Gigabit Ethernet interface

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: C0:8C:60:24:CF:C8

Part Number                         : 73-14511-02

PCA Assembly Number                 : 800-37898-01

PCA Revision Number                 : A0

PCB Serial Number                   : FOC17331GXD

Top Assembly Part Number             : 800-38357-01

Top Assembly Serial Number           : FCZ1737D1EY

Top Revision Number                : A0

Product/Model Number                 : AIR-CAP2602E-E-K9

% Please define a domain-name first.

logging facility kern

       ^

% Invalid input detected at '^' marker.

logging trap emergencies

       ^

% Invalid input detected at '^' marker.

Press RETURN to get started!

*Mar 1 00:00:11.319: %LWAPP-3-CLIENTERRORLOG: Config load from flash failed. Initialising Cfg

*Mar 1 00:00:13.019: %LINK-6-UPDOWN: Interface GigabitEthernet0, changed state to up

*Mar 1 00:00:13.607: %SYS-5-RESTART: System restarted --

Cisco IOS Software, C2600 Software (AP3G2-RCVK9W8-M), Version 15.2(4)JA1, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2013 by Cisco Systems, Inc.

Compiled Tue 30-Jul-13 23:08 by prod_rel_team

*Mar 1 00:00:13.647: %LWAPP-3-CLIENTERRORLOG: Config load from flash failed. Initialising Cfg

*Mar 1 00:00:13.647: %CAPWAP-3-ERRORLOG: Failed to load configuration from flash. Resetting to default config

*Mar 1 00:00:13.655: %PARSER-4-BADCFG: Unexpected end of configuration file.

lwapp_crypto_init: MIC Present and Parsed Successfully

*Mar 1 00:00:14.635: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, changed state to up

*Mar 1 00:00:16.331: DPAA Initialization Complete

*Mar 1 00:00:16.331: %SYS-3-HARIKARI: Process DPAA INIT top-level routine exited

*Mar 1 00:00:16.771: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0, changed state to up

no bridge-group 1 source-learning

                   ^

% Invalid input detected at '^' marker.

%Default route without gateway, if not a point-to-point interface, may impact performance

*Mar 1 00:00:47.323: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.X.Y.101, mask 255.255.255.0, hostname APc08c.6024.cfc8

Translating "CISCO-CAPWAP-CONTROLLER"...domain server (255.255.255.255)

*Mar 1 00:00:57.255: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.A.B.30 obtained through DHCP

*Mar 1 00:00:57.255: %CAPWAP-3-ERRORLOG: Did not get log server settings from DHCP.

User Access Verification

Username:

*Mar 1 00:01:06.255: %CAPWAP-3-ERRORLOG: Could Not resolve CISCO-CAPWAP-CONTROLLER

Hall of Fame Super Gold

Re: AP Controller IP DHCP Problem

%Error opening flash:/ap3g2-rcvk9w8-mx/E2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/B2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/V2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/X2.bin (No such file or directory)

%Error opening flash:/ap3g2-rcvk9w8-mx/Y2.bin (No such file or directory)

File not found: flash:/ap3g2-rcvk9w8-mx/8004.img

File not found: flash:/ap3g2-rcvk9w8-mx/E5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/B5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/V5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/X5.bin

File not found: flash:/ap3g2-rcvk9w8-mx/Y5.bin

Wow!  I've never seen this error message before.

*Mar 1 00:01:06.255: %CAPWAP-3-ERRORLOG: Could Not resolve CISCO-CAPWAP-CONTROLLER

I presume CISCO-CAPWAP-CONTROLLER is not configured in DNS?  You may want to do this.

Here's the dig ...

1.  WLC Country Code:  Your WLC is configured with a lot of Regulatory Domain.  Because of this, only COMMON CHANNELS will be transmitted by the AP.  So you may want to consider this in the future.

2.  Again, look at the time and date of the logs from the AP.  True, you have NTP configured BUT the AP can't even get the "basic" time and date right.  Which means the AP cannot discover where the WLC is.  So the basic troubleshooting for this would be firewall.    "Make sure that the CAPWAP UDP ports 5246 and 5247 (similar to the LWAPP UDP ports 12222 and 12223) are enabled and are not blocked by an intermediate device that could prevent an access point from joining the controller."

3.  If you console into the AP, can the AP ping the management IP address of the WLC?  If it can, then issue this command "config capwap ap controller ip address ".  If the AP joins when you do this, then it's probably because CISCO-CAPWAP-CONTROLLER is not configured.

NOTE:  There could be a remote possibility that the AP may have been incorrectly loaded with MESH IOS.  But we'll do the basic stuff first before going there.

New Member

Re: AP Controller IP DHCP Problem

Not sure if the FPGA for 7.4 on you WLC has anything to do with it but I would update it ; as yours says 1.3 : if I am reading right?

Sent from Cisco Technical Support iPad App

Re: AP Controller IP DHCP Problem

Hey Leo and Reginals,

for is must be something with the AP and the DHCP option I can't see in the moment, because as mentiones as soon as I let him join manually by the command capwap ap controller ip addr....it joins the AP...

I don't want to use DNS, I never used it before so that can't be a problem I guess.

I will try to go ahead with some try and erros maybe i will find somthing small which help us. I let u know as soon as I found something.

regards,
Sebastian

Hall of Fame Super Gold

AP Controller IP DHCP Problem

Sebastian,

If you used the command "capwap ap controller ip address" command then this is indicative that your DNS is not configured.

If you don't want to configure DNS, then the only possible way would be to prime your AP before going out.  This means that you need to plug your AP so it will "find" the controller while the switch and/or AP is connected to the same subnet as your WLC.

Once the AP is able to learn where the controller is then you can deploy the AP. 

AP Controller IP DHCP Problem

Leo, I'm confuesed does the DHCP option I use today for a few other APseries not work any longer?

In this case I have trouble with it on the 2600.

Hall of Fame Super Gold

AP Controller IP DHCP Problem

Sebastian,

You need to configure both DHCP option 43 and DNS.  Both are used to go out and look for the WLC.

AP Controller IP DHCP Problem

OK DNS did also not work..

I have now a 2600 in my office and try it here with another DHCP Server etc...if that work a problem is on-site with the DHCP...

i keep u in the loop...thanks so far

VIP Purple

AP Controller IP DHCP Problem

Error msg you saw when booting AP is not normal. Try delete NVRAM config of your AP & see.

AP#debug capwap console cli

AP#erase /all nvram:

If  none of these work, I would format flash & bring it back. Steps listed in below post

https://supportforums.cisco.com/thread/2045805

HTH

Rasika

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

AP Controller IP DHCP Problem

In my office it works fine, attach to network, wait a few minuntes and BAM it is on my WLC just via DHCP option.., so there is something with the DHCP setting on that site I guess...I will find it out and check it once again ;)...

thanks to all..

1525
Views
2
Helpful
16
Replies