Wireless 2504,user not getting dhcp ip address

Question

Hi i have configured wlc 2504 .in that i have configured two interfaces.one is guest, 2nd is internal user,
the pblm when user try to connect with that contain ssid user not getting ip address,
i have connected only one link between core to wlc on port 1.for guest interface i used port 4.but no physical link.
Please help this

Answer 1

There are multiple ways how the clients can get their IP-address in a WLC deployment.
From the WLC-FAQ:
How does DHCP work with the WLC?
A. The WLC is designed to act as a DHCP relay agent to the external DHCP server and acts like a DHCP server to the client. This is the sequence of events that occurs:
Generally, WLAN is tied to an interface which is configured with a DHCP server.
When the WLC receives a DHCP request from the client on a WLAN, it relays the request to the DHCP server with its management IP address.
The WLC shows its Virtual IP address, which must be a non-routable address, usually configured as 1.1.1.1, as the DHCP server to the client.
The WLC forwards the DHCP reply from the DHCP server to the wireless client with its Virtual IP address.Note: You can also configure the WLC to act as a DHCP server. For more information on how to configure a WLC as a DHCP server, refer to the Configuring DHCP Scopes section of the document Cisco Wireless LAN Controller Configuration Guide Release 5.1.
If you want more in-depth information you should read "DHCP with the WLC":
http://www.cisco.com/en/US/partner/products/ps6366/products_tech_note09186a0080af5d13.shtml
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