Zhone Technologies 800 - Manual (Page 116)

5-10 IMACS System Release 5.1.6 Server Cards
Model No. Running Head Fully Meshed vs. Partially Meshed IPR Card
5.5.4 Unnumbered IP Interface
When using a point-to-point Frame Relay IP interface, it is sometimes very useful for a user
not to assign an IP address to this Frame Relay interface, but rather to use an IP address of
another interface (e.g. Ethernet) in order to conserve an IP address and reduce the addressing
burden that might otherwise occur. Unnumbered interfaces give the customer an opportunity
to have just one IP address per whole IPR card, and use this address as a home IP address for
all the attached WAN interfaces. IPR can be used as any or a combination of the settings
shown in the previous sections described above. The reason for this is due to the fact that an
IPR, the customer first defines a logical IP interface, which includes IPRs address on this IP
interface and then can plug-and-play specified IP interfaces to any physical interface (Ethernet
and/or PVCs). Figure 5-8 below shows an Unnumbered Interface.
Figure 5-8. Unnumbered Frame Relay IP Interface
Frame Relay
Network
Router
Router
Ethernet IP Net
199.2.2.0
Un-numbered IP Interface
(Uses Ethernet's IP address
of 199.1.1.113)
Ethernet IP Net
199.2.2.0
199.1.1.113 199.1.1.1