Joined: 13 Aug 2013 Posts: 6867 Location: Romerike, Norway
Posted: Fri Jun 14, 2019 21:05 Post subject:
Let's say you have a web server on 10.20.33.1.
It uses port 443 which is https. You forward port 443 to 10.20.33.1:443
If another machine is also serves port 443, it's now occupied on the router and cannot be used by the second machine. You then have to forward another port i.e 1443 to 10.20.33.2:443
The client accessing from the WAN also have to specify WAN IP:1443 to use the second server.
Joined: 18 Mar 2014 Posts: 12885 Location: Netherlands
Posted: Sat Jun 15, 2019 8:10 Post subject:
The question still remains what are you trying to achieve?
Port forwarding is normally used when you are wanting to make/start a connection from outside to a client on the inside.
I have an OVPN server running and an FTP server and I want to connect from the internet to those so I have to port forward to the OVPN server and the FTP server
Port range Forwarding actually does the same but is used more if you want to open extra ports from the outside for a particular client like a download PC where you want to open extra ports for the transmission client
The question still remains what are you trying to achieve?
Port forwarding is normally used when you are wanting to make/start a connection from outside to a client on the inside.
I have an OVPN server running and an FTP server and I want to connect from the internet to those so I have to port forward to the OVPN server and the FTP server
Port range Forwarding actually does the same but is used more if you want to open extra ports from the outside for a particular client like a download PC where you want to open extra ports for the transmission client
You can use a specific port only once
For connections started from the inside you do not need any port forwarding
I wanted to activate NAT bcz i ve been hearing it increases security. I dont want to open ports for any inbound connection or something,