From: Chua, Parry (Parry.Chua@xxxxxxxxxx)
Date: Fri Apr 05 2002 - 01:21:01 GMT-3
I just do a test with Jason suggetsed, it work for both summary (ABR, ASBR). Th
e null route is remove from R4 routing table, summary routeis advertise to it n
eighbor R5. See my config attach :
[lo43 .43.0/24-area 43]->(R4)--area 0--(R5)
[lo41,42 .41.0,.42.0 Ext}
--------------------------------------------
!R4 IOS 12.1(9)
---------------
router ospf 130
log-adjacency-changes
area 43 range 130.130.43.0 255.255.255.0
summary-address 130.130.41.0 255.255.255.0
summary-address 130.130.42.0 255.255.255.0
redistribute connected metric 123 subnets route-map c2o
network 130.130.43.4 0.0.0.0 area 43
network 130.130.54.4 0.0.0.0 area 0
distribute-list 1 in
!
!
access-list 1 deny 130.130.41.0 0.0.0.255 log
access-list 1 deny 130.130.42.0 0.0.0.255 log
access-list 1 deny 130.130.43.0 0.0.0.255 log
access-list 1 permit any
!
route-map c2o permit 10
match interface Loopback40 Loopback41 Loopback42
!
r4_pc#sir
130.130.0.0/16 is variably subnetted, 6 subnets, 3 masks
C 130.130.4.0/24 is directly connected, Loopback0
C 130.130.40.0/24 is directly connected, Loopback40
C 130.130.41.0/28 is directly connected, Loopback41
C 130.130.42.0/26 is directly connected, Loopback42
C 130.130.43.0/28 is directly connected, Loopback43
C 130.130.54.0/26 is directly connected, Serial1/2
r4_pc#
=========================================================
R5 : IOS 12.1(9)
----------------
router ospf 130
log-adjacency-changes
network 130.130.54.5 0.0.0.0 area 0
!
r5_pc#sir
130.130.0.0/16 is variably subnetted, 9 subnets, 3 masks
C 130.130.5.0/24 is directly connected, Loopback0
O E2 130.130.40.0/24 [110/123] via 130.130.54.4, 00:00:26, Serial4/1
O E2 130.130.41.0/24 [110/123] via 130.130.54.4, 00:00:26, Serial4/1
O E2 130.130.42.0/24 [110/123] via 130.130.54.4, 00:00:26, Serial4/1
O IA 130.130.43.0/24 [110/65] via 130.130.54.4, 00:00:26, Serial4/1
SNIP
C 130.130.54.0/26 is directly connected, Serial4/1
r5_pc#show ip ospf database summary 130.130.43.0
OSPF Router with ID (130.130.52.5) (Process ID 130)
Summary Net Link States (Area 0)
Routing Bit Set on this LSA
LS age: 6
Options: (No TOS-capability, DC, Upward)
LS Type: Summary Links(Network)
Link State ID: 130.130.43.0 (summary Network Number)
Advertising Router: 130.130.42.4
LS Seq Number: 80000003
Checksum: 0xCCA
Length: 28
Network Mask: /24
TOS: 0 Metric: 1
r5_pc#show ip ospf database external 130.130.41.0
OSPF Router with ID (130.130.52.5) (Process ID 130)
Type-5 AS External Link States
Routing Bit Set on this LSA
LS age: 1319
Options: (No TOS-capability, DC)
LS Type: AS External Link
Link State ID: 130.130.41.0 (External Network Number )
Advertising Router: 130.130.42.4
LS Seq Number: 80000001
Checksum: 0x8453
Length: 36
Network Mask: /24
Metric Type: 2 (Larger than any link state path)
TOS: 0
Metric: 123
Forward Address: 0.0.0.0
External Route Tag: 0
Parry Chua
///////////////////
-----Original Message-----
From: Narvaez, Pablo [mailto:Pablo.Narvaez@getronics.com]
Sent: Friday, April 05, 2002 10:41 AM
To: Jason; Ahmed Mamoor Amimi; neiby@ureach.com; Guy.Lupi@eurekaggn.com;
Warren J Dubose
Cc: 'Mas Kato' ; ccielab@groupstudy.com
Subject: RE: RE: OSPF to IGRP redistribution (I know this has been
killed, th i s is short I promise)
I've tried that and from my experience, a distribute list will remove the null0
route from the routing table and also
will avoid this route to be propagated. It makes sense, doesn't it? .... what y
ou really send between 2 OSPF routers is what you got in the local routing tabl
e, not the database. For example, if you have problems with your local OSPF dat
abase due to an external forwarding address known thru an external route, netwo
rk-type mismatch or whatever, you'll see those routes in the database but not i
n the routing table; in turn, you will not be able to propagate those routes to
your neighbor.
Am I right? ....
hockito
-----Original Message-----
From: Jason [mailto:jgraun@attbi.com]
Sent: Jueves, 04 de Abril de 2002 08:16 p.m.
To: 'Ahmed Mamoor Amimi'; neiby@ureach.com; Guy.Lupi@eurekaggn.com;
'Warren J Dubose '
Cc: ''Mas Kato' '; ccielab@groupstudy.com
Subject: RE: RE: OSPF to IGRP redistribution (I know this has been
killed, th i s is short I promise)
If you use a distribute list you can remove the route from the route
table but still have the summary LSA propagated to the rest of the
routers.
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