HP 200 Series Services And Applications page 150

Novell IPX Routing Service
General Addressing Considerations
IPX network numbers are 32-bit numbers (8 hexadecimal digits). On HP
routers, a unique network number must be assigned to each network
interface where IPX routing service will be enabled. Devices connected to
the same network as a router interface must use the same network number
that is configured on that router interface. Network numbers in the range
00000001h to FFFFFFFEh are valid assignments. The network numbers
00000000h (all zeros) and FFFFFFFFh (all ones) are reserved to mean
unknown network and all networks, respectively.
Figure 2 shows an IPX internetwork that connects subnetworks in five cities
using HP routers with the IPX routing service enabled. When configuring the
IPX routing service, you will assign IPX addresses like those shown to the
router.
The IPX address consists of a network number and a host number. The net-
work number can be an 8-digit hexadecimal number. Subnetworks that are
connected by bridges are assigned the same network number. Subnetworks
that are connected by routers must be assigned different network numbers.
That is, an 8-digit hexadecimal number must be assigned to each router LAN
(Ethernet/IEEE 802.3 and/or token ring) and each WAN port that will be
routing IPX packets. For example, in figure 2, the HP router in Los Angeles
connects an Ethernet and a token ring LAN. Each LAN is assigned a separate
network number, 00000004 and 00000005, respectively. The WAN link that
connects Los Angeles to San Francisco is also assigned its own network
number, 00000003.
Each end node is assigned to an IPX network and has a unique host number.
The IPX host number is the station address assigned by the network equip-
ment manufacturer. You don't need to assign or configure the host number;
each node on the network has a unique host number.
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