OpenWRT allow remote ssh access

Allow ssh access from port 12345:

shell>/usr/sbin/iptables -I INPUT 1 -p tcp --dport 12345 -j LOG
shell>/usr/sbin/iptables -I INPUT 1 -p tcp --dport 12345 -j ACCEPT

To check if it loads properly -

shell>/usr/sbin/iptables -L | grep 12345
LOG tcp -- anywhere anywhere tcp dpt:12345 LOG level warning
ACCEPT tcp -- anywhere anywhere tcp dpt:12345

I you want to mantain changes Persistently:

shell>nvram set rc_firewall="/usr/sbin/iptables -I INPUT 1 -p tcp --dport 12345 -j LOG"
shell>nvram set rc_firewall="/usr/sbin/iptables -I INPUT 1 -p tcp --dport 12345 -j ACCEPT"