Port forwarding

Port forwarding via NAT router

In computer networking, port forwarding or port mapping is an application of network address translation (NAT) that redirects a communication request from one address and port number combination to another while the packets are traversing a network gateway, such as a router or firewall. This technique is most commonly used to make services on a host residing on a protected or masqueraded (internal) network available to hosts on the opposite side of the gateway (external network), by remapping the destination IP address and port number of the communication to an internal host.[1][2]

  1. ^ "Definition of: port forwarding". PC Magazine. Archived from the original on 2012-06-03. Retrieved 2008-10-11.
  2. ^ Rory Krause. "Using ssh Port Forwarding to Print at Remote Locations". Linux Journal. Retrieved 2008-10-11.

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