From: Scott Morris (swm@emanon.com)
Date: Sat Sep 24 2005 - 22:25:53 GMT-3
The adjacency will come up nicely, but your routes won't propogate properly.
As a simple way to look at it, think of it like childish politics! The side
that believes there's supposed to be a DR generally ends up being the DR
(nobody else applies). And when you are the DR, you believe that you are
the only one who is allowed to give authoratative announcements to the
network. Then, all of a sudden there's this other router that start
spouting things off and not playing by the rules ('cause it didn't have the
same rule list).
You'll get information announced, but believe it's not valid.
Just confuses everyone. :) Unfortunately, this wasn't part of the spec for
"will not peer" rules.
Go figure.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Schulz, Dave
Sent: Saturday, September 24, 2005 6:27 PM
To: Brian Dennis ; ccielab@groupstudy.com
Subject: RE: OSPF redistribute connected issue
Interesting! I thought that if you adjusted the hello/dead timers to agree
at both ends of the circuit....that the adjacency would come up and everyone
would be happy. Also, I did a debug ip ospf events at both R2 and R5 and
nothing appeared out of the ordinary. What is best way to debug this if you
run into such an issue (I like to create these "networks that should never
happen" labesque type scenarios)?
Dave
-----Original Message-----
From: Brian Dennis
To: Schulz, Dave; ccielab@groupstudy.com
Sent: 9/24/2005 3:32 PM
Subject: RE: OSPF redistribute connected issue
Dave,
You have an OSPF network type mismatch. OSPF network types that do
not use a DR (point-to-point and point-to-multipoint) can not neighbor with
OSPF network types that do use a DR (broadcast and non-broadcast). They
will become "adjacent" with each other if you adjust the hello timers but
they won't become true neighbors.
HTH,
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
Schulz, Dave
Sent: Saturday, September 24, 2005 12:09 PM
To: ccielab@groupstudy.com
Subject: OSPF redistribute connected issue
Group -
Here is an issue that I am having under OSPF....
R2 is connected R5 through a pt-pt frame. R2 is the ABR, which has the area
0 connection. The connection to R5 and R5 in in area 1. I have a number of
loopbacks set up on R5 (50.50.x.0)....and, when I redistribute into OSPF, I
can see them at R2 in the ospf database, but they are not showing up in the
routing table. And, because of this, the loopbacks are not reachable at the
spokes (other links out on the network connected to R2). Any thoughts on
this one?
R2 config.....
interface Serial0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type cisco
!
interface Serial0.1 multipoint
ip address 192.168.3.2 255.255.255.0
ip ospf priority 255
frame-relay map ip 192.168.3.2 203
frame-relay map ip 192.168.3.3 203 broadcast frame-relay map ip
192.168.3.4 204 broadcast no frame-relay inverse-arp !
interface Serial0.2 point-to-point
ip address 192.168.5.2 255.255.255.0
ip ospf hello-interval 30
frame-relay interface-dlci 205
!
router ospf 1
log-adjacency-changes
network 192.168.3.0 0.0.0.255 area 0
network 192.168.5.0 0.0.0.255 area 1
neighbor 192.168.3.4
neighbor 192.168.3.3
On R5 the config is.....
interface Loopback0
ip address 50.50.50.5 255.255.255.0
!
interface Loopback10
ip address 50.50.60.5 255.255.255.0
!
interface Loopback11
ip address 50.50.61.5 255.255.255.0
!
interface Loopback12
ip address 50.50.62.5 255.255.255.0
!
interface Loopback13
ip address 50.50.63.5 255.255.255.0
!
interface Loopback14
ip address 50.50.64.5 255.255.255.0
!
interface Loopback15
ip address 50.50.65.5 255.255.255.0
!
interface Loopback16
ip address 50.50.66.5 255.255.255.0
!
interface Loopback17
ip address 50.50.67.5 255.255.255.0
!
interface Loopback18
ip address 50.50.68.5 255.255.255.0
!
interface Serial0
ip address 192.168.5.5 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.5.2 502 broadcast no frame-relay inverse-arp
frame-relay lmi-type cisco !
router ospf 1
router-id 50.50.50.5
log-adjacency-changes
redistribute connected metric 20 metric-type 1 subnets network 192.168.5.0
0.0.0.255 area 1
Dave
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