@lobotiger wrote:
If I follow the process discussed above, eventually the current 7240XM master will completely go away at least temporarily. However I have found out that all of the APs connecting to the 7240XM local have the master's IP "hard coded" which I assume they use as part of their boot process? If that IP disappears and we can't leverage DNS or DHCP option 43 as a fallback, can we force the APs to establish their tunnels to the local controllers via their primary/backup LMS configs?
If we have to change that hard coded setting, is this something that needs to be done on every single AP or is there a profile setting that could be used so that it's applicable to all of them?
As Colin mentioned, once the master 7220 is introduced as a standby master and the VRRP IP is created, anything pointing to the 7240XM master should be updated to use the VRRP IP instead of the 7240XM's physical IP.
Since the APs most likely have had the master IP (not the LMS IP/backup LMS IP) statically set, they will need to be via the AP provisioning menu on the controller. The plus side is, you should be able to reprovision all APs of a particular model at once, since they'll all point to the same VRRP address.