Hi all
I am having trouble opening up ports and seeing machines behind my router. I am pretty sure I have the router and tunnel set up correctly because I can ping6 ipv6.google.com from both my machine on my lan and router itself. When I do a port scan though with the port scan tools here, no matter if it is the tunnel end, my router, or machine on my lan - I can't reach them at all.
Following are my ip6tables rules
iptables -I INPUT 1 -s 216.218.226.238 -p 41 -j ACCEPT
iptables -A input_wan -s 216.218.226.238 -p 41 -j ACCEPT
ip6tables -F
# Allow ICMPv6 everywhere
ip6tables -A INPUT -p icmpv6 -j ACCEPT
ip6tables -I OUTPUT -p icmpv6 -j ACCEPT
ip6tables -I FORWARD -p icmpv6 -j ACCEPT
#Allow tcp everywhere
#ip6tables -A INPUT -p tcp -j ACCEPT
#ip6tables -I OUTPUT -p tcp -j ACCEPT
#ip6tables -I FORWARD -p tcp -j ACCEPT
# Allow anything on the local loopback link
ip6tables -A INPUT -i lo -j ACCEPT
ip6tables -A OUTPUT -o lo -j ACCEPT
# Allow anything out on the internet
ip6tables -A OUTPUT -o henet -j ACCEPT
# Allow the localnet access us:
ip6tables -A INPUT -i br-lan -j ACCEPT
ip6tables -A OUTPUT -o br-lan -j ACCEPT
# Filter all packets that have RH0 headers:
ip6tables -A INPUT -m rt --rt-type 0 -j DROP
ip6tables -A FORWARD -m rt --rt-type 0 -j DROP
ip6tables -A OUTPUT -m rt --rt-type 0 -j DROP
# Allow Link-Local addresses
ip6tables -A INPUT -s fe80::/10 -j ACCEPT
ip6tables -A OUTPUT -s fe80::/10 -j ACCEPT
# Allow multicast
ip6tables -A INPUT -s ff00::/8 -j ACCEPT
ip6tables -A OUTPUT -s ff00::/8 -j ACCEPT
# Allow forwarding
#ip6tables -A FORWARD -m state --state NEW -i br-lan -o 6in4-henet -s 2001:470:b:314::/64 -j ACCEPT
ip6tables -A FORWARD -i br-lan -j ACCEPT
ip6tables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
#allow MLDHT packects
ip6tables -A FORWARD -p tcp --dport 49001:49001 -j ACCEPT
ip6tables -A FORWARD -p udp --dport 49001:49001 -j ACCEPT
ip6tables -A FORWARD -p tcp --dport 22:22 -j ACCEPT
ip6tables -A FORWARD -p udp --dport 22:22 -j ACCEPT
#drop priviledged ports
#ip6tables -A INPUT -p tcp --dport 1:1024 -j DROP
#ip6tables -A INPUT -p udp --dport 1:1024 -j DROP
#log the activity that will get dropped (optional)
#ip6tables -A INPUT -j LOG
#ip6tables -A FORWARD -j LOG
#ip6tables -A OUTPUT -j LOG
# Set the default policy
ip6tables -P INPUT DROP
ip6tables -P FORWARD DROP
ip6tables -P OUTPUT DROP
I thought that the following lines would open up port 22:
ip6tables -A FORWARD -p tcp --dport 22:22 -j ACCEPT
ip6tables -A FORWARD -p udp --dport 22:22 -j ACCEPT
and that because there is no NAT in ipv6, that it would get routed to the right place depending on the address I put into the tool.
(Either 2001:470:b:314::1 (router) or 2001:470:b:314:204:4bff:fe05:5eea (machine behind router) I ssh into them all the time otherwise. Also, if I add the lines
#Allow tcp everywhere
ip6tables -A INPUT -p tcp -j ACCEPT
ip6tables -I OUTPUT -p tcp -j ACCEPT
ip6tables -I FORWARD -p tcp -j ACCEPT
then the port scan tool shows all the ports that my router is listening on (not a good long term solution). Can someone point me to some working examples or help me figure out how I open up ports with rules I have now. I can't seem to find any real good examples. Thanks!