I'm trying to forward ports 80, 443, 32400 to a machine internal to my network. So traffic from EXTIP:80 should go to SERVERIP:80 and responses back out through EXTIP:80, it would also be helpful if these changes persisted restarts of the router. The router has two IPs EXTIP and INTIP. It is connected directly to the modem without NAT. The router manages NAT for the internal servers.I've tried any number of iptable changes around the internet, and there's usually side effects like I can no longer SSH into the router or outbound traffic stops working. The router is also running ufw and fail2ban
Ubuntu router forward port
iptables;ufw