Port forwarding
application of network address translation
Port forwarding, also referred to as port mapping,[1] 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.[2]
Port forwarding allows remote computers (e.g. public machines on the Internet) to connect to a specific computer within a private LAN.[3]
For example:
- 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.
Related pages
changeReferences
change- ↑ "Definition of: port forwarding". PC Magazine. Archived from the original on 2008-10-07. Retrieved 2008-10-11.
- ↑ Rory Krause. "Using ssh Port Forwarding to Print at Remote Locations". Linux Journal. Retrieved 2008-10-11.
- ↑ Jeff "Crash" Goldin. "How to set up a home web server". Red Hat. Retrieved 2008-10-11.
