From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Wed Jun 23 2004 - 12:31:47 GMT-3
Nigel,
The /32 route generated from the "peer neighbor-route" command
and the /32 generated from the OSPF point-to-multipoint network type
have nothing to do with each other.
Here is part of an earlier e-mail I sent about the peer neighbor-route
command:
<quote>
The "peer neighbor-route" command is normally used for unnumbered IP
links. If a link is unnumbered, a route will be needed in order to
reach the remote side's IP address. This "peer neighbor-route" command
is how a route to the remote end is created. If you disable the "peer
neighbor-route" command on an unnumbered link, a static route will
normally be needed to reach the remote end.
For someone to get an understanding of the "peer neighbor-route" command
and how it's used in a real network, try enabling PPP on a serial link
between two routers. Use IP unnumbered for the serial addressing based
off of each respective router's loopback interface. Then ping the
remote end's loopback. Now do the "no peer neighbor-route" command on
each side of the link and 'bounce' (shut/no shut) the interface. Try to
ping the remote end's loopback to see the benefit of having the "peer
neighbor-route" command enabled.
</quote>
As far as the /32 from OSPF when using the point-to-multipoint network
type, here is the section of the RFC that explains it:
<rfc2328>
12.4.1.4. Describing Point-to-MultiPoint interfaces
For operational Point-to-MultiPoint interfaces, one or
more link descriptions are added to the router-LSA as
follows:
o A single Type 3 link (stub network) is added with
Link ID set to the router's own IP interface
address, Link Data set to the mask 0xffffffff
(indicating a host route), and cost set to 0.
</rfc2328>
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Nigel.Johnson@barclayscapital.com
Sent: Wednesday, June 23, 2004 3:48 AM
To: chenleish@online.sh.cn; ccielab@groupstudy.com
Subject: RE: questions
A1. I've not tried it but ip think 'no peer neighbor-route' may remove
it.
A2. I don't believe it is -
http://www.cisco.com/warp/public/625/ccie/rs/lab_exam_blueprint.html
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
cl
Sent: 23 June 2004 07:01
To: ccielab@groupstudy.com
Subject: questions
1!" when i enable ospf on the frame-relay interface,and the interface
use
"ip ospf network p2mp" ,it will generate the interface address as a
/32
route in routing table , how to get rid of it?
2!"is IPSEC include in the R&S lab ?
This archive was generated by hypermail 2.1.4 : Sat Jul 03 2004 - 19:40:49 GMT-3