3Com 09-1324-000 For more information on Internet addresses, subnet masks, Following three parts

Class

Range of First Address Field

Address Format

A

0–127

nnn.hhh.hhh.hhh*

B

128–191

nnn.nnn.hhh.hhh*

C

192–223

nnn.nnn.nnn.hhh*

D

224–239

yyy.yyy.yyy†

For more information on Internet addresses, subnet masks, and

variable length subnet masks, refer to Using NETBuilder Family

Software.

IPX

Leading zeros can be omitted. Consists of an ampersand (&) followed

by a network address, which contains eight hexadecimal digits,

followed by the MAC address.

You may need to enter an IPX address when using the bridge/router

for IPX routing. The network address uniquely distinguishes one IPX

network from all other IPX networks. The following example

addresses are the same:

&00003333%080002005678

&3333%080002005678

OSI

Open System Interconnection (OSI) network addresses are called

network service access points (NSAPs). NSAPs are of variable length

and format, although they are always considered to have the

following three parts:

■ Area address (variable length)

■ System ID (six octets)

■ N-selector (one octet)

The system ID and N-selector are the last seven octets of the MAC

address, and the area address is everything but the system ID and

N-selector. The following is an example of an OSI address:

/49/0053080002A0089D01

where the area address is:

/49/0053

the system ID is:

080002A0089D

and the N-selector is:

01

For more information on the OSI addressing scheme, OSI routing

domains, and area addresses, refer to Using NETBuilder Family

Software.

VIP

A VINES Internet Protocol (VIP) address is globally unique, fixed, and

permanent for servers and routers only. Each node has a two-field,

48-bit Internet address, which is derived from the 32-bit VINES

network number and the 16-bit subnetwork number.