Raw IP protocol forwarding

Hi to you all,

Is it possible to use iptables to forward raw ip packets? What I want to
do is to forward, for instance, RSVP (protocol number 46) packets to a
local machine different from the gateway: that is to change destination
ip and resend it.


---------------------
DestIP Prot | Linux PC as Gateway |
--------[208.3.3.10 (46) ]-----> | (iptables) | -------->
| --------------------|
| |
208.3.3.10 192.168.1.1

---------------------
DestIP Prot | Local Machine |
--------[192.168.1.2 (46) ]-----> | |
|---------------------
|
192.168.1.2

Thanks.

Alvaro wrote:
> Is it possible to use iptables to forward raw ip packets? What I want to
> do is to forward, for instance, RSVP (protocol number 46) packets to a
> local machine different from the gateway: that is to change destination
> ip and resend it.

-A PREROUTING -i eth0 -p 46 -j DNAT --to 192.168.1.2