Hey Pepole!!

My name is Juda and i need to set up Tunnel

From my Home Linux machine to my ISP Cisco Router

i Do know how to set up simple ip-ip tunnel

Here is the script i have build to set it up

insmod ipip
ip tunnel add neta mode ipip remote _REMOTE_ROUTER local _MY_LOCAL_INTERFACE

ip addr add __MY_TUNNEL_IP_ADDR dev neta
ip link set neta up
ip route add _FORIEGN NETWORK dev neta

well it's work great

i have set up on My Cisco using tunnel protocol ipip (Also called protocol 4)

Network 192.168.1.0

Cisco Interface: 192.168.1.1

Linux Interface: 192.168.1.2

And i was able to ping from the cisco to the Linux

My problem is that my ISP use a Cisco implemented IP over IP encapsulation called NOS (KA9Q/NOS Compatiable) , also named protocol 94

i have made some debugs and with the tunnel i have set up below my computer (192.168.1.2) able to ping to the Cisco Machine

But when the cisco send reply , my machine send to the router protocol unreachable

that means my linux box dont recognize the NOS protocol , i have pass allmost the whole linux how to documents

grep "NOS" * / grep "nos" * / grep "tunnel" *

and i havent find any HowTo that talk about NOS the only one was AX25-HOWTO

and i have tried to use there example but i am getting error

Destation on reachable

when i am tring to set up the route

Help will be apprechated

Sincer Juda(Love Linux) Barnes