SAP Packet Format
 
SAP field contents

Each host that provides a service contains a SAP agent. Each agent acquires information reflected in the fields of this packet and keeps the information in a table.

OPERATION: This field defines packet operation.

SERVICE TYPE: This field identifies the service type that the server provides.

SERVICE NAME: This identifies the server name based upon network number.

NETWORK ADDRESS: This is the network address the server is located upon.

NODEADDRESS: This is the address of where the server is located.

SOCKET NUMBER: This number is the process identifier to which packets must be sent.

NUMBEROF HOPS TO THE SERVER: This indicates the number of hops to the host where the server is located.

The remaining part of the packet may have additional information about other servers on the network.
 
Service Type Value
User 1
User Group 2
Print Queue 3
File Server 4
Job Server 5
Gateway 6
Print Server 7
Archive Server 9
Archive Queue 8
Job Queue A
Administration B
SNA Gateway 21
NAS Gateway 29
TCP/IP Gateway 27
Time Synchronization Server 2D
Print Queue User 53
Network Access Server 98
Portable Netware 9E
Wildcard FFFF
NNS Domain 133
NetWare 386 Print Server 137
NetWare 386 107
Communication Execution 130
Advertising Print Server 47