Hi Rene,
I am still lost here.
R2(config)#monitor session 1 type erspan-destination
R2(config-mon-erspan-dst)#no shutdown
R2(config-mon-erspan-dst)#destination interface GigabitEthernet 2
R2(config-mon-erspan-dst)#source
R2(config-mon-erspan-dst-src)#erspan-id 100
R2(config-mon-erspan-dst-src)#ip address 172.16.2.200
Looking at the configuration above. I do not know how R1 sees 172.16.2.200 as the destination IP address and R2 sees same IP address as the source IP address.
I thought the source IP address from R2’s perspective should be the 172.16.12.1, IP address of R1.
secondly, you are using the tunnel source interfaces and not the tunnel interfaces in the configurations. right?
Thank you for always helping.