From: Minh Vuong (mvuong@xxxxxxxxx)
Date: Sun Jun 16 2002 - 20:24:42 GMT-3
Hi Guys,
Need some help with this classic OSPF to IGRP problem. I am trying to get a
VLSM route from OSPF over to IGRP.
I was trying to use the second OSPF area method. I can't seem to get this
to work right.
The route is 133.10.5.1/27, which is a loopback address on R1. R1
participates in OSPF Area 0 only.
IGRP domain uses only /24 subnets.
Usual caveats of can't use ip default networks or redistribute static
applies.
R2----IGRP-------R1------OSPF------R4
R1:
router ospf 1
redistribute igrp 1 metric 200 subnets
network 128.200.1.0 0.0.0.255 area 0
network 133.10.1.0 0.0.0.31 area 0
network 133.10.2.0 0.0.0.255 area 0
network 133.10.5.0 0.0.0.31 area 0
neighbor 133.10.1.4
neighbor 133.10.1.3
distance 55
!
router ospf 2
redistribute ospf 1 metric 200 subnets
network 128.200.1.0 0.0.0.255 area 0
network 133.10.1.0 0.0.0.31 area 0
network 133.10.2.0 0.0.0.255 area 0
network 133.10.5.0 0.0.0.31 area 0
distance 55
!
router igrp 1
redistribute connected metric 1000 1 255 1 1500 route-map c2i
redistribute static metric 1000 1 255 1 1500
redistribute ospf 2 metric 1000 100 255 1 1500
network 133.10.0.0
!
R4:
router ospf 1
router-id 133.10.1.4
area 30 range 133.10.33.0 255.255.255.0
area 30 virtual-link 133.10.33.5
redistribute eigrp 1 metric 200 subnets route-map e2o
network 133.10.1.0 0.0.0.31 area 0
network 133.10.30.0 0.0.0.15 area 0
network 133.10.33.0 0.0.0.63 area 30
network 161.100.1.0 0.0.0.255 area 30
!
router ospf 2
network 133.10.1.0 0.0.0.63 area 0
network 133.10.30.0 0.0.0.15 area 0
network 133.10.33.0 0.0.0.63 area 30
network 161.100.1.0 0.0.0.255 area 30
!
R2:
router igrp 1
redistribute connected
passive-interface Ethernet0
network 133.10.0.0
On R1, my second OSPF process doesn't seem to be active:
R1#sh ip ospf 2
Routing Process "ospf 2" with ID 133.10.5.1
Supports only single TOS(TOS0) routes
Supports opaque LSA
It is an autonomous system boundary router
Redistributing External Routes from,
ospf 1 with metric mapped to 200, includes subnets in redistribution
SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs
Number of external LSA 13. Checksum Sum 0x742E1
Number of opaque AS LSA 0. Checksum Sum 0x0
Number of DCbitless external and opaque AS LSA 0
Number of DoNotAge external and opaque AS LSA 0
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
External flood list length 0
Area BACKBONE(0) (Inactive) <<<======================================
INACTIVE BACKBONE 0???
Number of interfaces in this area is 0
Area has no authentication
SPF algorithm executed 4 times
Area ranges are
Number of LSA 1. Checksum Sum 0xF022
Number of opaque link LSA 0. Checksum Sum 0x0
Number of DCbitless LSA 0
Number of indication LSA 0
Number of DoNotAge LSA 0
Flood list length 0
R1 is running 12.1(2)T (c2600-jk2o3s-mz.121-2.T.bin).
Thanks,
Minh
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