Hi,
I have a customer on 6.3.1.1 where some of the local controllers have a L2 GRE tunnel setup for the guest traffic, that goes through to the master controller.
The setup was typical with the below, and explained in many threads in these forums.
Local
Tunnel source - vlan ip
Tunnel destination - master vrrp
Master
Tunnel source - vlan ip
Tunnel destination - local controller vlan ip
Unfortunately there were many issues with the guest network stopping working from time to time. TAC have said to the customer that this setup is wrong and you cannot set the tunnel destination to be the vrrp address.
I know this is supported since 3.x, so why is TAC saying that it is wrong? There are so many other examples in here of people doing exactly that above and it works fine on other versions. Nothing in the UG or release notes says that this is unsupported either.
They have also suggested setting up a tunnel to the master-backup as well, in case of failover, which makes no sense to me since there will be two active tunnels for the same vlan.
rant over.
:smileywink: