Cisco 2106 WLAN Controller DHCP

[bingerthedog]

I have a Server 2003 machine setup as a DHCP server on our network. When I get a DHCP address through the WLAN controller and do an ipconfig /all it shows the DCHP server as 1.1.1.1 instead of 192.168.0.x, is this a normal Cisco thing or did I miss a setting on the WLAN controller?

 

[eurobadger]

Hi bingerthedog

This address is on the WLC?

The WLC has multiple interfaces, of which one is the virtual interface. The CCNP certification guide (I've got my nose stuck in it) says this:

"Virtual interface:- A logical interface used to relay DHCP requests from wireless clients. A bogus (but unique) static IP address is assigned to this interface, so that clients will see the virtual address as their DHCP server. All WLCs within a mobility group must use the same virtual interface address."

This is set to 1.1.1.1 by default, and it should only need to be changed if there is more than one mobility group in your network.

EB

 

[bingerthedog]

Thanks, so it sounds like it should be set to 1.1.1.1, I'm not sure what mobility group refers to. There are two IP addresses assigned to the WLC, 192.168.0.3 and 192.168.0.4, the .3 is the managing address.

 

[eurobadger]

Hi bingerthedog

Have a look at

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a0080810880.shtml

and

http://www.cisco.com/en/US/products/ps6366/products_configuration_guide_book09186a00806b0077.html

mobility groups are described in chapter 11

EB



"The most powerful command you will ever use is rtfm"
EB