
Configuring and Customizing IP
303528-A Rev 00
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Configuring a Multinet Interface
The multinet capability allows you to assign multiple IP network/subnet addresses
to a single circuit; each IP address represents a separate network interface on the
circuit.
Multinet is commonly used in IP networks as part of a transition strategy. As
networks evolve it is sometimes necessary to consolidate several physical
networks. To avoid readdressing, the physical networks can be consolidated onto a
multinetted router interface. This allows hosts to migrate to the new IP interface or
maintain the old IP address.
In Figure 4-2
, for example, host A and host C are located on different subnets. The
router provides connectivity between hosts A and C by acting as the default
gateway and routing packets.
Figure 4-2. Multinet Configuration
e21
140.250.150.10
e22
140.250.200.10
140.250.250.10
140.250.150.2
140.250.200.56 140.250.250.3
Router
Host
C
Host
A
Host
B
IP0009A
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