From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hinko Kocevar Subject: icmp forward Date: Fri, 30 Jan 2009 09:18:59 +0100 Message-ID: <4982B7F3.4020603@cetrtapot.si> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1" To: netfilter@vger.kernel.org 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. I= t acts a a gateway for a another mobile device that connects to linux device v= ia irda port - ppp connection. I've managed to port forward telnet port to mobi= le device with the help of this page http://kreiger.linuxgods.com/kiki/?Port+forw= arding+with+netfilter. Our customers want to be able to ping the mobile device behind the linu= x firewall and IMHO it is not possible for ICMP packets to be forwarded since it i= s a protocol by itself (not a TCP/UDP style service). Is it possible to 'port forward' ICMP requests? Thank you, HK --=20 Hinko Ko=E8evar, OSS developer =C8ETRTA POT, d.o.o. Planina 3, 4000 Kranj, SI EU tel ++386 (0) 4 280 66 03 e-mail hinko.kocevar@cetrtapot.si http www.cetrtapot.si