WLC 2100 and DHCP strange issue.

[guest]

i have this scenario: 1 WLC 2100 and two LW AP 3500 connected. If the access points are connected via external switch evrything works well - AP and Clients get IP address from external DHCP and this is ok but when im connecting AP 3500 directly to one of ports on WLC i need to chceck in controller web Controller -> Advanced -> DHCP -> Enable DHCP proxy - after that AP get IP addres and clients get too but ip is assigned from external dhcp but the gateway is set as controller IP address (!!!) so clients not works. I want to configure access points connected directly do WLC.





I have small setup and i have configured all in the one vlan - management dla users are in the same vlan.



And the second is - for what usage is internal DHCP server - and how to use it?

[guest]

There are issues with the arp code in the 2106/2504 that make plugging an AP into the ports on the back of these devices a bad idea.



The DHCP server in the WLC is for clients to get an ip address. And yes it does work but you only have limited configuration you can do on its DHCP config. Only network, gw, and DNA no advanced options.



For the last point. You're saying that when the AP is connected to the back of the WLC, the client gets an address from your externalmdhcp server, but the gw is the WLC? That's not one I've seen before. The server should be listed as the virtual IP, but I've never seen the WLC change the gw in the dhcp request.



Steve



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