what michele said is correct...this would work since you are utilizing
the prerouting / nat
Sent from my iPhone
On 30-Jan-09, at 12:33 AM, Michele Petrazzo - Unipex srl <michele.petrazzo@xxxxxxxxx
> wrote:
Hinko Kocevar wrote:
Hi all,
I'm an absolute beginner on the netfilter stuff, so please bear
with me here.
We have a device running linux 2.6.19 kernel with iptables
installed. It acts
a a gateway for a another mobile device that connects to linux
device via irda
port - ppp connection. I've managed to port forward telnet port to
mobile device
with the help of this page http://kreiger.linuxgods.com/kiki/?Port+forwarding+with+netfilter
.
Our customers want to be able to ping the mobile device behind the
linux firewall
and IMHO it is not possible for ICMP packets to be forwarded since
it is a protocol
by itself (not a TCP/UDP style service).
Is it possible to 'port forward' ICMP requests?
Sure? Looking at firsts google reply, you can find
iptables -A FORWARD -p icmp --icmp-type echo-request -j ACCEPT
iptables -t nat -A PREROUTING -i eth0 -p icmp DNAT --to-destination
10.2.1.1
end so on...
Or I miss something?
Thank you,
HK
Michele
--
To unsubscribe from this list: send the line "unsubscribe netfilter"
in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe netfilter" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
