I've searched the forum for this problem, but nothing worked.
Here it is:

I'm tryiing to open port 80 for lighttpd server on WAN.

I've moved admin GUI server to port 8080 (with nvram set...).

Now web server works from LAN. But doesn't respond from WAN.

Here is my post-firewall:

iptables -i ppp0 -I INPUT -p tcp --dport 22 -j ACCEPT
iptables -i vlan1 -I INPUT -p tcp --dport 56881:56889 -j ACCEPT
iptables -i br0 -I INPUT -p tcp --dport 56881:56889 -j ACCEPT
iptables -i br0 -I INPUT -p tcp --dport 65534 -j ACCEPT
iptables -i ppp0 -I INPUT -p tcp --dport 443 -j ACCEPT
iptables -i ppp0 -t nat -I INPUT -p tcp --dport 80 -j ACCEPT
iptables -i vlan1 -I INPUT -p tcp --dport 5060:5062 -j ACCEPT
iptables -i vlan1 -I INPUT -p udp --dport 5060:5062 -j ACCEPT
iptables -i vlan1 -I INPUT -p udp --dport 5004:5084 -j ACCEPT
iptables -i vlan1 -I INPUT -p udp --dport 3478 -j ACCEPT
iptables -i vlan1 -I INPUT -p tcp --dport 3478 -j ACCEPT
iptables -i vlan1 -I INPUT -p tcp --dport 4663 -j ACCEPT
iptables -i vlan1 -I INPUT -p udp --dport 4673 -j ACCEPT
iptables -i vlan1 -I INPUT -p udp --dport 4666 -j ACCEPT

Do I need to enable WAN access to admin GUI? It's disabled at the moment. But I don't want to manage my router from the internet anyway.