Using a tunnel/Linux

[Justin Lipman]

Hi there,

Ive been fighting with the same problem without any sucess.

When I do a tcp dump on my outgoing port while pinging.
I am able to see the packets going out. An occasional packet comes back, 
but nothing happens.

Dont supposed anybody could explain the mechanics behind the tunnelling - as
far as setup & configuration is concerned???

Goodluck,
Justin

> I've got a tunnel to my Linux box, I just can't get it working..
> 
> This the info I got :
> 
> Tunnel end (their side) : 195.159.0.16
> IPv6 address I should use on my IPv6 tunnel interface:
> 3ffe:1108:403:7005::2/64
> 
> I looked around and tought this script would start it up correctly:
> 
> # Your IPv6 prefix
> PREFIX=3FFE:1108:403:7005
> # The host-part of the IPv6 address for this machine
> ADDRESS=2
> # The IPv4 address of the far side of your tunnel
> TUNNEL=195.159.0.16
> 
> echo 0 > /proc/sys/net/ipv6/conf/all/autoconf
> echo 0 > /proc/sys/net/ipv6/conf/all/accept_ra
> echo 0 > /proc/sys/net/ipv6/conf/all/accept_redirects
> echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
> echo 0 > /proc/sys/net/ipv6/conf/all/router_solicitations
> 
> ifconfig eth0 add $PREFIX::$ADDRESS/64
> route -A inet6 add $PREFIX::0/64 dev eth0
> ifconfig sit0 up tunnel ::$TUNNEL
> ifconfig sit1 up
> route -A inet6 add 3ffe::0/15 gw fe80::$TUNNEL dev sit1
> 
> --
> 
> I would appricate it if someone told me what was wrong with it, since I am
> quite unexperienced with this.