Hello, I've a principal router for my connexion which doesn't support ipv6 so I have an idea. I try to make a forward all packets with protocol 41 to my linksys router which supports ipv6. So my linksys router is configured with a lan static ip and I put the lan ip of my principal router as lan ip, and no connexion wan. I followed the instructions that I found for my linux firware of my router (http://openwrt.org/IPv6_howto) but when I try to ping an host, I have that: root@OpenWrt:~# ping6 www.kame.net PING www.kame.net (2001:200:0:8002:203:47ff:fea5:3085): 56 data bytes --- www.kame.net ping statistics --- 3 packets transmitted, 0 packets received, 100% packet loss I try to add a rule in iptables to let packet with protocol 41 pass. iptables -A INPUT -p 41 -j ACCEPT and this is all my INPUT rules: root@OpenWrt:~# iptables -L INPUT -v Chain INPUT (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 DROP all -- any any anywhere anywhere state INVALID 26 2392 ACCEPT all -- any any anywhere anywhere state RELATED,ESTABLISHED 0 0 DROP tcp -- any any anywhere anywhere tcp option=!2 flags:SYN/SYN 1 229 input_rule all -- any any anywhere anywhere 1 229 ACCEPT all -- !vlan1 any anywhere anywhere 0 0 ACCEPT icmp -- any any anywhere anywhere 0 0 ACCEPT gre -- any any anywhere anywhere 0 0 ACCEPT ipv6 -- any any anywhere anywhere 0 0 REJECT tcp -- any any anywhere anywhere reject-with tcp-reset 0 0 REJECT all -- any any anywhere anywhere reject-with icmp-port-unreachable What I have to do? Thanks. Bye