The question asked for an IPv6 tunnel between R1 and R2. Config below shows one end and it works. Ospf runs over it and i can ping from the network at one end to the other.
The WB shows the command 'tunnel mode ipv6ip'. Would i be dropping marks here and if so why??
no ip address
ipv6 address 2001:CC:1E:12::1/64
ipv6 ospf 1 area 0
tunnel source Loopback0
tunnel destination 188.8.131.52
Rack22R1#sh ipv6 tunnel
Tun Route LastInp Packets Description
12 - 00:00:03 1057