Linux with sit0 and several tunnels?

[Stig Venaas]

On Thu, Sep 23, 1999 at 01:46:15PM +0200, Tomas Lund wrote:
> 
> Is anyone out there using linux 2.2/glibc 2.1 to set up multiple tunnels
> using numbered tunnel interfaces? My setup today looks like this:
> 
> ifconfig sit0 inet6 add 3ffe:200:1:1c::2
> route -A inet6 add 3ffe::0/16 gw ::193.10.66.219 dev sit0
> route -A inet6 add 3ffe:240:2::/48 gw ::139.58.254.40 dev sit0
> 
> The first route is the one to my upstream pTLA (SICS) and the other is a
> tunnel to another linuxbox (unnumbered tunnel endpoints), but now i need
> to set up another tunnel to a solarisbox that wants IPv6-addresses for the
> tunnel endpoints, does anyone know how to do this, I'd hate to spend
> severaly days experimenting if this information is available somewhere :) 

You can do

ifconfig sit0 tunnel ::$IP4END
ifconfig sit1 up
ifconfig sit1 add $IP6END/64

where IP4END and IP6END are the remote IPv4 and IPv6 addresses. You
can add more tunnels by repeating the first line, you will get sit2,
sit3 and so on. To use the tunnels you add routes to sit1, sit2..

Stig

-- 
Stig Venaas
UNINETT/NTNU