Finally had permission to try this change and I could not get it to work. Would be useful if someone could tell me where I am going wrong. Remember I'm trying just change the subnet mask from 255.255.252.0 to 255.255.240.0.
I thought I may be able to try
no ip address 10.5.127.201 255.255.252.0
and then
ip address 10.5.127.201 255.255.240.0
However I can't type no ip address as I get the message:
IP address allocated from the Branch controller pool
(config-subif)#no ip address ?
internal IP address allocated from the Branch controller pool
<cr>
then:
(config-subif)#no ip address internal
IP address internal is only applicable within the branch-config group
I note the controller vlan is referenced under the entry
controller-ip vlan 1403
Do I first have to try
no controller-ip vlan 1403
then reboot, then change the ip and mask, then put the controller-ip entry in again? Or will I have to create a temporary VLAN to allocate to the controller-ip? I'm doing all of this from the console so I don't need to keep IP connectivity to the management interface working.
I think that's what you were suggesting Herman I'm just wanting to be sure!
Drew