Layer 3 Roaming and DHCP

[Aurecon Group]

                   Hi Guys.

Setting up a multi floor WLAN using a 6500 WISM Controller. Each floor has an AP group with the floor WAPs assigned. Each floor has a VLAN and the WLC has an interface configured. Each floor has a WLAN configured with the same SSID and the only change is the interface on the WLAN per floor.

DHCP is remote on AD servers and each floor as a scope configured.

Each floor works fine - we can get connected and get assigned to correct IP address. The issue we had with this setup was moving between floors. When we move up a floor the client loses connection to the inital floor (coverage - as expected). if we disconnect and reconnect it connects to the new floor SSID and gets an IP from DHCP.

When looking into this - I then created an interface group and added all the floor interfaces into the group. I then applied the interface group to each floor WLAN and did soem testing - it worked as expected. I could now move between floors.

The issue with this is though. When I was testing I already had an IP address assigned from DHCP - before I changed to interface groups. The issue is that the intial DHCP assignment no longer works and we cant connect to the WLAN anymore,

Any pointers on getting this working?

Cheers

[Saravanan Lakshmanan]

get, debug client

see if client getting excluded for some reason.

what is the test client device.

are interface group used in ap group.

[robert.d.gandy · Accepted solution]

Thanks Saravanan, you pointed me in the right place - the AP GROUPs has the individual interfaces - as they were setup like that prior to me creating interface groups. I updated the WLANs to use the interface group - however seems like you also have to update the AP Group WLAN configs too. Seems to be working now as expected.

Thanks for the assistance