Network address translation

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Revision as of 17:52, 19 November 2017 (edit)
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Current revision (16:23, 16 September 2019) (edit) (undo)
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-'''NAPT''' ('''network address and port translation''') is a necessary because of to few public internet (IPv4) addresses or for other reasons.+'''NAPT''' ('''network address and port translation''') is necessary due to limited public internet addresses (IPv4), to apply firewall (iptables) rules, and for other reasons.
NAPT is commonly referred to as '''NAT''' ('''[[wikipedia:Network_address_translation|Network address translation]]'''). NAPT is commonly referred to as '''NAT''' ('''[[wikipedia:Network_address_translation|Network address translation]]''').
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The NAPT is normally done by a router or firewall with NAPT functionalty - e.g. DD-WRT software! The NAPT is normally done by a router or firewall with NAPT functionalty - e.g. DD-WRT software!
-Note: [[Private ip addresses]] must be (source) translated ([[wikipedia:Network_address_translation|NAT]]ted, tcp, udp: [[wikipedia:Port_address_translation|PAT]]) to a public (=non-private) ip address (tcp: [[wikipedia:Internet_socket|socket]]) before its payload can be send into the (public) internet.+Note: [[Private_ip_address|Private IP addresses]] must be (source) translated ([[wikipedia:Network_address_translation|NAT]]ed, tcp, udp: [[wikipedia:Port_address_translation|PAT]]) to a public (non-private) IP address (tcp: [[wikipedia:Internet_socket|socket]]) before its payload can be sent into the (public) internet.
[[Category:NAT]] [[Category:NAT]]
[[Category:Documentation]] [[Category:Documentation]]

Current revision

NAPT (network address and port translation) is necessary due to limited public internet addresses (IPv4), to apply firewall (iptables) rules, and for other reasons.

NAPT is commonly referred to as NAT (Network address translation).

The NAPT is normally done by a router or firewall with NAPT functionalty - e.g. DD-WRT software!

Note: Private IP addresses must be (source) translated (NATed, tcp, udp: PAT) to a public (non-private) IP address (tcp: socket) before its payload can be sent into the (public) internet.