From: Tim Lewin (tlewin@xxxxxxxxxxxxxxxxxxx)
Date: Sun Aug 04 2002 - 20:14:05 GMT-3
Armand
Redistribute connected on R4 so that 135.4.24.0/27 network appears as and
external OSPF route on R4 (and not as a connected network as it will appear
as by default). Then on R4 us the OSPF "Summary-Address" command to
summarise this external OSPF route as 134.4.0.0 /16 or 134.4.24.0 /24 back
into OSPF. This summary route will then be delivered to R5.
Regard...Tim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Armand D
Sent: Monday, 5 August 2002 8:08 AM
To: ccielab@groupstudy.com
Subject: OSPF into IGRP using Summarization solution
Hello,
This is a tough one to get working. I have three
routers one running IGRP the other two in OSPF. I have
searched the archives for solutions and still can't
get this one to work. Router 5 shows all area 1
networks /29 with help of "summary-address"
command. Router 5 does NOT see any Area 0 /27 routes
in routing table.I have tried the "area 0
range" command on R4 with no luck. Please look at
my configs and tell me what I'm missing here.
Any help would be appreciated.
R5
|
|
135.4.56.0/24 IGRP
|
|
R6
|
|
135.4.36.0/29 OSPF Area 1
|
|
R4
|
135.4.24.0/27 OSPF Area 0
====================================
hostname R5
!
ip subnet-zero
!
interface Loopback0
ip address 135.4.5.5 255.255.255.0
no ip directed-broadcast
!
interface Ethernet0/0
ip address 135.4.56.5 255.255.255.0
no ip directed-broadcast
!
router igrp 10
network 135.4.0.0
!
ip classless
!
end
===================================
hostname R6
!
ip subnet-zero
interface Loopback0
ip address 135.4.6.6 255.255.255.0
no ip directed-broadcast
interface Loopback200
ip address 135.4.66.6 255.255.255.0
no ip directed-broadcast
ip ospf network point-to-point
!
interface Serial0/0
description to R4
ip address 135.4.34.6 255.255.255.248
no ip directed-broadcast
encapsulation frame-relay
ip ospf message-digest-key 2 md5 secure
ip ospf network broadcast
ip ospf priority 0
frame-relay map ip 135.4.34.4 604 broadcast
frame-relay lmi-type cisco
!
interface Ethernet0/1
description to R5 IGRP
ip address 135.4.56.6 255.255.255.0
no ip directed-broadcast
!
router ospf 1
summary-address 135.4.34.0 255.255.255.0
redistribute igrp 10 metric 1 subnets
network 135.4.6.6 0.0.0.0 area 1
network 135.4.34.0 0.0.0.7 area 1
network 135.4.36.0 0.0.0.255 area 33
area 0 authentication
area 1 authentication message-digest
area 1 virtual-link 135.4.4.4 message-digest-key 2
md5 secure
!
router igrp 10
redistribute connected
redistribute ospf 1 metric 1 1 255 255 1
network 135.4.0.0
==========================
hostname R4
!
ip subnet-zero
!
interface Loopback0
ip address 135.4.4.4 255.255.255.0
ip ospf priority 255
!
interface Serial0/0
no ip address
encapsulation frame-relay
cdp enable
frame-relay lmi-type cisco
!
interface Serial0/0.1 multipoint
ip address 135.4.34.4 255.255.255.248
no ip split-horizon
ip ospf message-digest-key 2 md5 secure
ip ospf network broadcast
frame-relay map ip 135.4.34.6 406 broadcast
!
interface Ethernet0/1
description to to R2
ip address 135.4.24.4 255.255.255.224
ip ospf authentication-key cisco
!
router ospf 1
area 0 authentication
area 0 range 135.4.24.0 255.255.255.0 cost 1
area 1 authentication message-digest
area 1 virtual-link 135.4.6.6 message-digest-key 2
md5 secure
network 135.4.4.4 0.0.0.0 area 0
network 135.4.24.0 0.0.0.31 area 0
network 135.4.34.0 0.0.0.7 area 1
!
end
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