User manual

Addressing Schemes B-1
Appendix B
Addressing Schemes
This appendix contains a brief introduction to the IP and IPX
addressing schemes for administrators that are new to either
one or both.
The following topics are discussed:
• IPX addressing basics
• IP addressing basics
• Supernetting
IPX Addressing Basics
Unlike TCP/IP, Novell’s IPX protocol uses two separate address
fields for each network interface: a 4 octet (4 byte) network
number and a 6 octet node address. The complete 10 octet
address is traditionally written as two hexadecimal numbers
separated by a colon, for example: 001EF230:000000012A45.
The network number is an arbitrary value assigned by the
network administrator. Each unique network number
designates a single LAN segment. Each one should be entered
as an 8 digit hexadecimal number.
The node address of an IPX machine is taken directly from the
MAC address of each network interface card. This address was
pre-configured by the manufacturer of the card and usually
cannot be changed by a network administrator.