topic Error messages appear on in Wireless

wlc duplicated addresses

dimensyssrl — Mon, 05 Jul 2021 07:57:24 GMT

Heelo.

We have a WLC 2504 with 7.4.121.0 sw version.

We have upgraded to this version due to the fact that with old version many many clients get "duplicated ip address" error.

With this release problem remains.

Frequently clients connects to wifi and get this error, though the error is a fake (I've checked many cases, but there are not duplicated addresses).

DHCP server is the same wlc.

Thanks for any suggestions.

Daniele

Referhttps://supportforums

Saurav Lodh — Thu, 05 Jun 2014 09:17:15 GMT

Refer

https://supportforums.cisco.com/discussion/11491031/duplicated-ip-error-some-clients

Its due to DHCP lease as the

kaaftab — Thu, 05 Jun 2014 09:26:03 GMT

Its due to DHCP lease as the client already have the old address its better that you make a new scope and so that the new client gets the ip after the default lease expire then you can switch to the original lease.

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Sorry, but it's not the

dimensyssrl — Thu, 05 Jun 2014 09:43:25 GMT

Sorry, but it's not the problem.

I've defined a dhcp pool of 200 ip addresses and there are only 24 clients connected...

I've tried "passive client"

dimensyssrl — Thu, 05 Jun 2014 09:52:47 GMT

I've tried "passive client" configuration: it didn't solve the problem.

My sw release is suggested from cisco web site.

I don't know how to remove wlc interfaces from wlans.

I don't have HREAP enabled.

I've also tried to disable

dimensyssrl — Thu, 05 Jun 2014 14:51:18 GMT

I've also tried to disable "Session Timeout" with no luck.

Ip address conflict remains and they are very annoying.

Check and Verify this may be

mohanak — Mon, 09 Jun 2014 12:21:47 GMT

Check and Verify this may be a problem.

WLC: Duplicate IP address msglog is erroneous or misleading

CSCtz96742

Description

Symptom:

Duplicate IP address log entry found on the WLC Msglog

Conditions:
NA

Workaround:
NA as the reported problem doesn't seem to exist or be found

Error messages appear on

dimensyssrl — Wed, 11 Jun 2014 08:53:55 GMT

Error messages appear on client, not in wlc logs.