From: Shamin (ccie.xpert@gmail.com)
Date: Thu Aug 16 2007 - 14:18:08 ART
Dear All,
I have the following scenario.
R1(s0/0) <-------RIPv2-----> (s0/0) R2 (e0/0) <---- OSPF Area
51-----> (e0/1) R3 (s0/0) < ----OSPF area 0 ---->
|<-------161.1.12..0 ---------->| |<-----
161.1.23.0---->| |<--------161.1.34.0-------->
I have the above topology in which R1 & R2 is running RIPv2 and R2 ,R3 is
running OSPF in area 51.
The requirement is that R3 summarizes the 161.1.34.0 network as
161.1.0.0/16when advertising in
to area 51. The problem I am facing is that , R2 receives this
summary.However , R1 does not
receive this summary in spite of the redistribution done on R2. If the
summary is any other
Class B major network, R1 does receive this summary after redistribution.
Hence it has got to do
with the major network in RIP and the summary being the same.
I know this has to do with how RIP behaves, but I could not find out what
exactly is the cause and if there
is a work around for this.
My config for your reference:
R1#
interface Serial0/0
ip address 161.1.12.1 255.255.255.0
encapsulation frame-relay
frame-relay map ip 161.1.12.2 102 broadcast
no frame-relay inverse-arp
!
!
router rip
version 2
redistribute connected metric 1 route-map REDISTRIBUTE->RIP
passive-interface default
no passive-interface Serial0/0
network 161.1.0.0
no auto-summary
!
!
route-map REDISTRIBUTE->OSPF permit 10
match interface Loopback0
R2#
interface Serial0/0
ip address 161.1.12.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 161.1.12.1 201 broadcast
no frame-relay inverse-arp
router ospf 1
router-id 150.1.2.2
log-adjacency-changes
redistribute connected subnets
redistribute rip subnets
network 161.1.23.2 0.0.0.0 area 51
!
router rip
version 2
redistribute ospf 1 metric 5
passive-interface default
no passive-interface Serial0/0
network 161.1.0.0
no auto-summary
!
R3#
interface Ethernet1/0
ip address 161.1.23.3 255.255.255.0
half-duplex
!
interface Serial2/0
ip address 161.1.34.3 255.255.255.0
encapsulation frame-relay
ip ospf hello-interval 10
frame-relay map ip 161.1.34.4 304 broadcast
no frame-relay inverse-arp
!
router ospf 1
router-id 150.1.3.3
log-adjacency-changes
area 0 range 155.1.0.0 255.255.0.0
area 0 range 161.1.0.0 255.255.0.0
summary-address 150.1.0.0 255.255.0.0
redistribute connected subnets route-map REDISTRIBUTE->OSPF
network 161.1.23.3 0.0.0.0 area 51
network 161.1.34.3 0.0.0.0 area 0
network 192.10.1.3 0.0.0.0 area 51
neighbor 161.1.34.4
route-map REDISTRIBUTE->OSPF permit 10
match interface Loopback0
!
!
Regards
Shamin
This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:11 ART