Option 7 at IOS DHCP
Ofcourse you want all logging goto a syslog server. (It’s also a Cisco recommendation. See WLC Configu Guide)
You can configure a IOS DHCP Scope like :
ip dhcp exclude 192.168.1.1
ip dhcp pool VLAN1
network 192.168.1.0 /24
option 7 ip
option 43 hex f1040a0a0a0a
In my own lab the option 7 wasn’t working !
I had tested the WLC with versions 4.2.130 and 4.2.176.
Then I saw :
%LWAPP-3-CLIENTEVENTLOG: Did not get any DNS options from DHCP.
That’s not good..
After changing it to 4.2.209 the option 7 is working and you’ll see at the LWAPP :
%LWAPP-3-CLIENTEVENTLOG: Got log server settings(192.168.1.10) from DHCP.