Port forwarding, also referred to as port mapping, is a method of forwarding a network port from one network node to another. This technique can allow an external user to reach a port on a private IP address (inside a LAN) from the outside using a NAT-enabled router.
- forwarding of port 80 to run an HTTP webserver within private LAN from internet
- forwarding of port 22 to allow Secure Shell access within private LAN from internet
- forwarding of port 21 to allow FTP access within private LAN from internet
Port forwarding is not necessary with IPv6, because every IPv6-enabled device has a public IPv6 address.
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References[change | change source]
- "Definition of: port forwarding". PC Magazine. https://www.pcmag.com/encyclopedia_term/0,2542,t=port+forwarding&i=49509,00.asp. Retrieved 2008-10-11.
- Rory Krause. "Using ssh Port Forwarding to Print at Remote Locations". Linux Journal. http://www.linuxjournal.com/article/5462. Retrieved 2008-10-11.
- Jeff "Crash" Goldin. "How to set up a home web server". Red Hat. http://www.redhat.com/magazine/022aug06/features/webserver/. Retrieved 2008-10-11.