AP unable to get IP from DHCP Server

[Faisal Shabbir]

Dear Friends,

i have dozens of APS unable to get an IP address from DHCP (core 6500 series switch). i am getting the following message on APS

%CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip

i have another DHCP server  on windows 2008 server when i assign  any other vlan range to APS  from windows DHCP server, thn APS are getting IPS and succesfully associating with WLAN Controllers.

please advice

Regards,

Faysal

[Faisal Shabbir]

Mar  1 00:25:38.035: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!

*Mar  1 00:25:38.035: %CAPWAP-5-DHCP_RENEW: Could not discover WLC using DHCP IP. Renewing DHCP IP.

*Mar  1 00:25:48.035: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!

*Mar  1 00:25:58.035: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!

*Mar  1 00:26:08.035: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!

*Mar  1 00:26:18.035: %CAPWAP-3-ERRORLOG: Not sending discovery request AP does not have an Ip !!

Not in Bound state.

[ammahend]

paste this from your 6500

show run | sec pool|dhcp

show run | sec forward|5246

show ip int br | ex un

[abwahid]

Hi,

If your network topology is ok,

make sure vlan range which you are assigning is not already in use of your network, if not in use

you need to verify the internal DHCP Sever setting of WLC

The internal DHCP server on the WLC, is designed to be used by the clients of that WLC.

check you internal DHCP server configuraion as per the below document.

http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/110865-dhcp-wlc.html#internal-dhcp-config-example