How to use internal DHCP-server on a Wireless Lan Controller?

rayost · ‎01-20-2011

Hi,

I'm trying to use the internal DHCP-server on a 4402 WLC v.7 for air-lap 1141n. But the WLC log says:

*DHCP Proxy DTL Recv Task: Jan 18 14:51:58.591: c4:71:fe:34:14:c7 DHCP received op BOOTREQUEST (1) (len 310,vlan 228, port 2, encap 0xec00)
*DHCP Proxy DTL Recv Task: Jan 18 14:51:58.591: c4:71:fe:34:14:c7 DHCP dropping packet from AP c4:71:fe:34:14:c7 received on port 2, vlan 228

Here are a screenshot of the ap-manager interface.

Primary DHCP server is set to management interface (192.168.228.25).

I'm not sure how the Internal DHCP server and ap-manager works togheter, is there a way to connect the DHCP scope to ap-manager?

Thanks!

Surendra BG · ‎01-20-2011

Hi,

The DHCP server information should be filled under MANAGEMENT interfcae DHCP server as well..

that is..

instead of configuring the DHCP server ip on AP-manager, do it on MANAGEMENT interface... check this DOC..

http://cisco.biz/en/US/products/ps6366/products_tech_note09186a0080af5d13.shtml#Internal-DHCP

that is..

Lemme know after making this changes, this will help you!! and keep in mind, DHCP AP to get an IP from the WLC = Same VLAN for management and AP-manager and AP VLAN.

lemme know if this answered your question..

Regards
Surendra
====
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Regards
Surendra BG

denneht · ‎07-14-2016

I have the same problem. I have my management set to 192.168.20.6, the ap manager on .8 - this is on a 2125 WLC with 7.0 code.

I can plug my workstation into port 1 and using a static IP, browse to the wlc as expected. When I plug in an AP to the poe port, the AP never gets an IP.

I created a dhcp scope on the WLC and enabled DHCP proxy. I consoled into the AP, and get

*Mar 1 00:22:04.506: %CAPWAP-3-DHCP_RENEW: Could not discover WLC. Either IP
address is not assigned or assigned IP is wrong. Renewing DHCP IP.

I have the clock manually set to today's date and time.

I just cannot figure out what I'm missing!