debug client - spammed to death by : *DHCP Socket Task: Aug 25 12:28:16.863: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

[Thomas Obbekaer Thomsen]

When doing debug client (and its been a little while since it was necessary for me last) , Im being spammed to death by : 

*DHCP Socket Task: Aug 25 12:28:16.863: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

Many many lines of this.

I have tried disabling dhcp messages, packets and so on ... they still keep coming.

Is there any solution ?

/Thomas

[Thomas Obbekaer Thomsen]

Bascially it looks like this : so 2 to 3 lines each second ... its a pain.

*DHCP Socket Task: Aug 25 12:38:50.908: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:51.678: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:52.425: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:53.224: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:53.541: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:55.601: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:56.009: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:56.100: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:56.484: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:56.488: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:58.089: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:38:58.724: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:00.607: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:01.240: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:01.338: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:03.164: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:03.626: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:03.906: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:04.328: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:06.504: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

*DHCP Socket Task: Aug 25 12:39:07.030: [PA] IP Context distribution - event: (DHCP IP LEARN) msCount: 1 ToAllAps: 1

[Anjana A]

Hello,

Please update what is dhcp mode on the wlc?

Global/proxy?

It is only logs or users are facing any issues.?

[Thomas Obbekaer Thomsen]

DHCP mode is ... ehh .. non-proxy if thats what you are asking.

Users are facing issues thats why I wanted to debug client.

But they are not facing DHCP issues.

I think its a reauth / PMK issue something with 9120 and 8.10MR3

On MR2 no problems with 9120, but of course problems with 2800/3800.

On MR3 no problems with 2800/3800 but now problems with 9120.

And I wanted to do some initial debugging to investigate if it was something obvious.

But as I wrote, Im being spammed to death by those lines.

(In between there is the normal client debugs, but I think Im not getting everything, and the WLC seems "slow" and sluggish when i enable debug client because of all those messages Im affraid).

[Anjana A]

Hello,

Please update what is dhcp mode on the wlc?

Global/proxy?

It is only logs or users are facing any issues.?

Regards,

Anjana

[marce1000]

 1) Have  a sanity check of the controller configuration : https://cway.cisco.com/tools/WirelessAnalyzer/

 2) Client debugging can be analyzed with this tool :     https://cway.cisco.com/tools/WirelessDebugAnalyzer/

 3) Make sure controller software is not too old and or use latest release in a particular train (e.g.)

 M.

[Thomas Obbekaer Thomsen]

1 and 2 ) : He he ... yes ... Those are excellent tools, but thats not really the issue.

3: The latest and the greatest 8.10MR3 so ... "Not to old".

[marce1000]

 - The tools are indeed not the issue but are intended to >assist<   , 

 M.

[patoberli]

Do you have DHCP Required enabled on the SSID by chance?
I don't get those messages when debugging a client on 8.10.130.0 (3504 WLC and 2802i AP). This WLC has a very low load (like 12 clients connected), so maybe that's the reason I don't get those messages.

[Thomas Obbekaer Thomsen]

Hmmm perhaps. But then it would need to be disabled on all SSID's I guess ?

I will try it , good suggestion.

[patoberli]

I really don't know if it will help, but it might be a difference to my setup and an easy thing to try.