Tunnel between Nortel — Cisco — FreeBSD

Sumber : rendo.blogspot.com

I just want to share my experience to do tunnelling between Nortel ARN router series, Cisco 7500 series, and FreeBSD. Unfortunately ARN router series only support gre tunnel, it is not supporting ipip tunnel.

Sorry, I can’t give you the traceroute result because it difficult to me to hide the real ip address in the traceroute result. Because I did the configuration on live system, I can not share the real configuration due to security reason. If you have any question, please feel free to contact me directly.

Because I have minimum experience on Nortel devices, maybe I’m wrong about the capability of ARN router to do ipip tunnel. please CMIIW.

Notes: ALL IP address are faed due to security reason.
Nortel ARN router configuration
——————————-
tunnels
gre name to-cisco local-address 172.17.2.166
ip address 10.101.102.1 mask 255.255.255.252
back
remote-endpoint name cisco-1 address 172.24.232.65
back
back
gre name to-freebsd local-address 172.17.2.166
ip address 10.100.102.1 mask 255.255.255.252
back
remote-endpoint name freebsd-1 address 172.20.1.73
back
back
back



Cisco Configuration
——————-
interface Tunnel3
ip address 10.101.102.2 255.255.255.252
tunnel destination 172.17.2.166
tunnel mode gre ip



FreeBSD configuration
———————-
ifconfig gre0 create
ifconfig gre0 inet 10.100.102.2 10.100.102.1 netmask 255.255.255.252
ifconfig gre0 tunnel 172.20.1.73 172.17.2.166