<![CDATA[Port Forward a custom IP Proto number?]]>Is there no way to forward a custom IP protocol number?

I am tunneling IPv6 in IPv4 and would like to forward that protocol number (41) internally into another firewall.

I could have sworn this worked in earlier versions.  I am now on 2.1.1

Can this be done still?  The option doesn't seem to be in the WebUI.

If it helps…here is how it's done in IPtables/DDWRT

iptables -t nat -A PREROUTING -i eth0 -p ipv6 -j DNAT --to-destination 192.168.1.10
iptables -A FORWARD -d 192.168.1.10 -p ipv6 -j ACCEPT

Thanks,

Lonifer2000

]]>https://forum.netgate.com/topic/67701/port-forward-a-custom-ip-proto-numberRSS for NodeMon, 20 Apr 2026 07:51:28 GMTWed, 09 Apr 2014 05:43:33 GMT60<![CDATA[Reply to Port Forward a custom IP Proto number? on Wed, 09 Apr 2014 08:09:28 GMT]]>Uhm… System - Advanced - Networking - IPv6 over IPv4 Tunneling

Enter the IP there. Done.

]]>https://forum.netgate.com/post/453841https://forum.netgate.com/post/453841Wed, 09 Apr 2014 08:09:28 GMT