Ticket 15 – IPv6 GRE Tunnel
April 22nd, 2018
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Problem: Loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2 (2026::102:1).
Configuration of R3:
!
interface Tunnel34
no ip address
ipv6 address 2026::34:1/122
ipv6 enable
ipv6 ospf 6 area 34
tunnel source Serial0/0/0.34
tunnel destination 10.1.1.10
tunnel mode ipv6
!
Configuration of R4:
interface Tunnel34
no ip address
ipv6 address 2026::34:2/122
ipv6 enable
ipv6 ospf 6 area 34
tunnel source Serial0/0/0
tunnel destination 10.1.1.9
!
Answer:
Ans1) R3
Ans2) Ipv4 and Ipv6 Interoperability
Ans3) Under the interface Tunnel34, remove ‘tunnel mode ipv6’ command