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
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