I configure two 3400 controllers with Master-Master - Master-Standby Redundancy using VRRP shown below.
Also I configure Local controller 3200 for Master-Local redundancy. Local's loopback IP is 10.200.170.1.
There is MPLS network in between Master-Master/Backup-Master and Local controller, therefore layer 3 (IP layer) can only be transparent.
I need to establish L2 GRE tunnel for VLAN184 between Master-Master/Backup-Master and Local.
I choose Local controller's loopback IP 10.200.170.1 as a start point of L2 GRE tunnel, and I choose VRRP IP 10.200.175.254 as endpoint. But L2 GRE tunnel cannot be established.
If I choose Master-Master's vlan 10 interface IP address 10.200.175.1 as endpoint, L2 GRE is established.
I have read that VRRP IP can be used for L2 GRE tunnel endpoint, but it cannot.
Do you have a good solution?
When I established L2 GRE between 10.200.175.1 and 10.200.170.1(tunnel 1 for VLAN184) also L2 GRE between 10.200.175.2 and 10.200.170.1 (tunnel 2 for VLAN184), VLAN184 can go through between Master-Master, Backup-Master, and Local controller.
(Master-Master)
vlan 10
interface vlan 10
ip address 10.200.175.1 255.255.255.0
interface Gi 1/0
switchport access vlan 10
switchport mode access
trusted
vrrp 10
vlan 10
ip address 10.200.175.254
priotity 110
preempt
tracking master-up-time 30 add 20
no shutdown
Master-redundancy
master-vrrp 10
peer-ip-address 10.200.175.2
(Backup Master)
vlan 10
interface vlan 10
ip address 10 200.175.2 255.255.255.0
interface gi 1/0
switchport access vlan 10
switchport mode access
trusted
vrrp 10
vlan 10
ip address 10.200.175.254
priority 100
preempt
tracking master-ip-up-time 30 add 20
no shutdown
master-redundancy
master-vrrp 10
peer-ip-address 10.200.175.1
#3200#3400