Internetwork packet exchange (IPX) protocol

IPX addressing

IPX addressing defines the internetwork, a collection of LANs connected by routers, bridges, and so forth.

IPX packet headers require both source and destination addresses. These designate the sender and the receiver of the packet respectively.

The IPX internetwork addressing scheme uses three address components shown in ``IPX internetwork address components'' (and which are described in more detail following).

IPX internetwork address components

Address Byte Length Description
Network 4 bytes Identifies a specific network or LAN on an IPX internetwork
Node 6 bytes Identifies individual nodes, or computers, on a network or LAN.
Socket 2 bytes Identifies a process or function operating within a node. A socket is identified by a unique number

 ------------------------------------------------------------------------
| Address   |  Byte Length|  Description                                |
|-----------|-------------|---------------------------------------------|
| Network   |  4 bytes    |  Identifies a specific network or LAN on an |
|           |             |  IPX internetwork                           |
|-----------|-------------|---------------------------------------------|
| Node      |  6 bytes    |  Identifies individual nodes, or computers, |
|           |             |  on a network or LAN.                       |
|-----------|-------------|---------------------------------------------|
| Socket    |  2 bytes    |  Identifies a process or function operating |
|           |             |  within a node.  A socket is identified by a|
|           |             |  unique number                              |
|-----------|-------------|---------------------------------------------|

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UnixWare 7 Release 7.1 - 19 March 1999