Discover WLC by DNS.

It’s possible to discover the WLC by using a DNS server.
During startup the WLC is looking for : CISCO-LWAPP-CONTROLLER
First of all, we create a A record in our DNS server.
This should be enough to have this feature working.

If you don’t specify a domain-name at the DHCP scope, the LWAPP is first looking for :
CISCO-LWAPP-CONTROLLER (Without any suffix)
and if nothing is found, it tries to resolve :

ip dhcp pool VLAN22
option 150 ip
lease 8

When we debug the AP we’ll see :

%LWAPP-3-CLIENTEVENTLOG: Performing DNS resolution for
%LWAPP-3-CLIENTEVENTLOG: Controller address obtained through DNS

About Joost van der Made


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