Справочное Руководство для Netopia 430 s

IPX is a datagram, connectionless protocol that Novell adapted from 
Xerox Network System’s (XNS) Internet Datagram Protocol (IDP). IPX 
is dynamically routed, and the routing architecture works by 
“learning” network addressing automatically.

An IPX address consists of a network number, a node number, and a 
socket number. An IPX network number is composed of eight 
hexadecimal digits. The network number must be the same for all 
nodes on a par ticular physical network segment. The node number 
is composed of twelve hexadecimal digits and is usually the 
hardware address of the inter face card. The node number must be 
unique inside the par ticular IPX network. Socket numbers 
correspond to the par ticular ser vice being accessed. 

A socket in IPX is the equivalent of a por t in TCP/IP. Sockets route 
packets to different processes within a single node. Novell has 
reser ved several sockets for use in the NetWare environment:

Field Value

Packet Type

Description

00h

Unknown Packet Type

Used for all packets not 

classified by any other type

01h

Routing Information 
Packet

Unused for RIP packets

04h

Ser vice Adver tising 
Packet

Used for SAP packets

05h

Sequenced Packet

Used for SPX packets

11h

NetWare Core Protocol 
Packet

Used for NCP packets

14h

Propagated Packet

Used for Novell NetBIOS