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Routing IP and IPX
Running a bridged network allows workstations to communicate
directly between one another. A PC user wishing to communicate with
a remote network server is totally unaware of any intervening bridges.
This is known as transparent operation.
Figure A-3
Example Network
It is important to understand that in a bridged network the addressing
structure for both IP and IPX relates to a single network. If the units in
Figure A-3
were bridges and not routers, then an IP node on LAN A
could, for example, have an address 140.56.10.0, the node on LAN B an
address 140.56.10.2, and the node on LAN C, an address of 140.56.10.3.
All the nodes, therefore, are able to share the same Class B network
address, regardless of their location on the bridged network.
However, if there were NetWare nodes throughout the three bridged
sites, they would also share the same IPX network number. If each of
the bridged LANs supported a network server, each with its own
unique network number, and an IPX address is misconfigured, the
NetWare network server consoles will report the message ‘Router
Configuration Error – Router XXXXX claims that LAN is XX-XX-XX-XX’.
(The router it refers to is in fact the network server).