From: Brian Dennis (brian@5g.net)
Date: Thu Sep 12 2002 - 14:17:17 GMT-3
Just configure OSPF as you would normally do. You would enable OSPF on
the Ethernet interfaces in your case which would also mean OSPF will run
on the unnumbered serial interfaces.
The only real caveat to OSPF unnumbered is that both sides have to be in
the same OSPF area. You can't have R1's Ethernet interface in area 1 and
R2's Ethernet interface in area 0 when using these for the unnumbered
serial interfaces. If this was the case you could create a loopback on
R1 and put it in area 0 and then use its IP address for the unnumbered
serial link.
Brian Dennis, CCIE #2210 (R&S/ISP Dial)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Peng Zheng
Sent: Thursday, September 12, 2002 9:36 AM
To: ccielab@groupstudy.com
Subject: OSPF address used for unnumbered interface
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
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:43:50 GMT-3