Private ip address

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m (Private LAN addresses moved to Private ip address)
 
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Private internet addresses are often used on the LAN. Private internet addresses are often used on the LAN.
-The allowed private addresses are specified in [http://tools.ietf.org/html/rfc1918 rfc1918]:+The allowed private IPv4 addresses are specified in [http://tools.ietf.org/html/rfc1918 rfc1918]:
* 10.0.0.0 - 10.255.255.255 (10/8 prefix) * 10.0.0.0 - 10.255.255.255 (10/8 prefix)
* 172.16.0.0 - 172.31.255.255 (172.16/12 prefix) * 172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
* 192.168.0.0 - 192.168.255.255 (192.168/16 prefix) * 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
-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 addresses must be (source) translated ([[Network address translation|NAT]]ted, tcp, udp: PAT) to a public (=non-private) ip address (tcp: [[wikipedia:Internet_socket|socket]]) before its payload can be send into the (public) internet.
- +
-NAPT (network address and port translation) is a necessary because of to few public internet IPv4 addresses. NAPT is commonly referred to as NAT ([[wikipedia:Network_address_translation|Network address translation]]).+
- +
-The NAPT is normally done by a router or firewall with NAPT functionalty.+
==External links== ==External links==

Current revision

Private internet addresses are often used on the LAN.

The allowed private IPv4 addresses are specified in rfc1918:

  • 10.0.0.0 - 10.255.255.255 (10/8 prefix)
  • 172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
  • 192.168.0.0 - 192.168.255.255 (192.168/16 prefix)

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

[edit] External links

Retrieved from "http://wiki.dd-wrt.com/wiki/index.php/Private_ip_address"