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The IPX datagram contains an IPX header and any data to be transferred on the network. The IPX header is a 30 byte header that contains 10 fields. Figure�161 illustrates an IPX datagram:
Figure�161:�IPX Datagram in Detail
See Table�115 for a description of the IPX datagram Structure fields:
| Parameter |
Description |
|---|---|
| Checksum |
Provides integrity checking. Note: Checksum is normally not enabled in IPX networks and is usually set to 0xFFFF. |
| Packet Length |
Length (in bytes) of the packet. |
| Transport Control |
Number of routers a packet has traversed. This is used to discard a packet if the packet traverses a maximum number of routers (16). |
| Packet Type |
Indicates the type of service required or offered by the packet. Types include:
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| Destination Network |
The IPX network address of the destination network. |
| Destination Node |
The MAC address of the destination node. |
| Destination Socket |
Address of the process running in the destination node. Sockets route packets to different processes within the same node. |
| Source Network |
The network address of the source network. |
| Source Node |
The MAC address of the source node. |
| Source Socket |
Address of the process running in the source node. |
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