Wireless Guest Network using Cisco 4402 as an Anchor Controller

[emnyman1027]

Hello,

We have recently redesigned our wireless guest network in accordance to Cisco's recommended deployment using the anchor controller in the DMZ. We have created two mobility groups (enterprise and anchor). The anchor controller and DMZ has two subnets (guest managment and guest clients). The guest management subnet is connected to the controller and firewall allowing the mobility groups and EOIP tunnels while the guest client network is also connected to the controller and firewall to push the client traffic directly out the firewall. The setup works well but the one part that I'm not happy with is the DHCP. Currently DHCP is being handled on the firewall because of issues we had with dhcp relay and the controllers internal dhcp service.

Does anyone have any information on getting DHCP relay working or the internal dhcp service on the controllers when using as a anchor?

This is basically the setup guide that we followed.

http://www.cisco.com/en/US/docs/solutions/Enterprise/Mobility/emob41dg/ch10GuAc.html

Thanks!

[Surendra BG · Accepted solution]

Hi,

Make sure you have the IP helper address configured under the VLAN interface on the L3 and also make sure to disable DHCP proxy on both the WLC (Anchor and Foreign).

This will help us as well..

lemme know if this answered your question..

Regards
Surendra
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[emnyman1027]

Thats a very good thought, but what would be the difference between using the ip helper address and the DHCP override option? Any suggestions on where the ideal place is to put DHCP on the wireless guest network?

[George Stefanick · Accepted solution]

Personally, I would not have your WLC handle DHCP. There are been to many problems with the DHCP server and the controller. I would leave it on the firewall, just my 2 pennys.