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Internet – Netopia Firmware 4000-Series User Manual

Page 304

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B-12 Firmware User Guide

Routers B and C (which could also be Routers) ser ve the two remote networks that are subnets of a.b.c.0. The
subnetting is accomplished by configuring the Router with connection profiles for Routers B and C (see the
following table).

The Router’s connection profiles for Routers B and C create entries in its IP routing table. One entr y points to
the subnet a.b.c.128, while a second entr y points to the subnet a.b.c.248. The IP routing table might look
similar to the following:

Connection profile

Remote IP address

Remote IP mask

Bits available for host

address

For Router B

a.b.c.128

255.255.255.192

7

For Router C

a.b.c.248

255.255.255.248

3

Internet

Router A

Router C

Router B

a.b.c.0

a.b.c.16

a.b.c.1

a.b.c.2

a.b.c.248

a.b.c.249

a.b.c.128

a.b.c.129