OSPF address used for unnumbered interface

From: Peng Zheng (zpnist@yahoo.com)
Date: Thu Sep 12 2002 - 13:35:47 GMT-3


Hi,

I saw this under OSPF FAQ.

Q: Which address-wildmask pair should I use for
assigning an unnumbered interface to an area?

A: When an unnumbered interface is configured, it
references another interface on the router. When
enabling OSPF on the unnumbered interface, use the
address-wildmask pair of interfaces to which the
unnumbered interface is pointing.

But I don't understand.

for example:

       (e0)R1(s0)-----(s0)R2(e0)

Ip of e0 on R1: 1.1.1.1/24
ip of e0 on R2: 2.2.2.2/24
IF both s0 use ip unnumber ethernet 0
 
And if I want to assign s0 of R1 to area 0

Which address/wildmask I should use?
2.2.2.2/24?

Thank you for help.

Best Wishes,
Peng Zheng



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