From: jim.phillipo@xxxxxxxxxxxx
Date: Thu Aug 22 2002 - 22:19:55 GMT-3
Take a look at these configs. How is router 3 using the Ethernet of router 4
137.20.40.1 as the virtual link end point ?
The only way I have been able to make things work is to add a loopback to
rtr 4 and use that as rtr3's link neighbor.
Any thoughts ? I am losing my mind on this one.
R4
interface Ethernet0
ip address 137.20.40.1 255.255.255.0
area0---r3---area1-----r4---area40
ipx network 400
ipx type-20-propagation
bridge-group 1
!
interface Serial0
no ip address
shutdown
no fair-queue
!
interface Serial1
ip address 137.20.103.2 255.255.255.0
clockrate 2000000
!
router ospf 1
log-adjacency-changes
area 1 virtual-link 137.20.3.65
network 137.20.40.1 0.0.0.0 area 40
network 137.20.103.2 0.0.0.0 area 1
r3
interface Loopback0
ip address 137.20.3.33 255.255.255.224
ipx network 30000
!
interface Loopback1
ip address 137.20.3.65 255.255.255.224
ipx network 30001
!
!
interface Serial0
ip address 137.20.103.1 255.255.255.0
!
interface Serial1
ip address 137.20.101.3 255.255.255.0
encapsulation frame-relay
ip ospf network point-to-multipoint
ipx network 3150
custom-queue-list 1
clockrate 64000
frame-relay map ip 137.20.101.1 301 broadcast
frame-relay lmi-type ansi
!
interface TokenRing0
ip address 137.20.30.1 255.255.255.0
ipx network 300
ipx type-20-propagation
ring-speed 16
source-bridge 1 1 10
source-bridge spanning
!
router ospf 1
log-adjacency-changes
area 1 virtual-link 137.20.40.1
area 31 range 137.20.3.0 255.255.255.0
network 137.20.3.0 0.0.0.255 area 31
network 137.20.30.1 0.0.0.0 area 30
network 137.20.101.3 0.0.0.0 area 0
network 137.20.103.1 0.0.0.0 area 1
!
!
-----Original Message-----
From: Jim Phillipo
Sent: Thursday, August 22, 2002 8:07 PM
To: ccielab@groupstudy.com
Subject: OSPF Issue
I am working on lab 3 of CCIE boot camp.
I have a area that needs a virtual link to connect to the back
bone.Everything appears ok, but the interface that is in the area that needs
the virtual link is not in the routing table of the ABR connected to the
Backbone. But the LSA is in its Database ?
Any thoughts ?
Here is the Database and route table: 137.20.40.0 is the missing network
OSPF Router with ID (137.20.3.65) (Process ID 64)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link count
137.20.3.65 137.20.3.65 603 0x80000005 0xA30A 3
137.20.101.1 137.20.101.1 1089 0x80000011 0x1B53 5
137.20.103.2 137.20.103.2 604 0x80000021 0x8022 2
172.168.32.1 172.168.32.1 894 0x80000004 0xEBBF 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
137.20.30.0 137.20.3.65 1050 0x80000001 0x7A1F
137.20.30.0 137.20.103.1 2603 0x80000001 0x3D38
137.20.103.0 137.20.3.65 1107 0x80000001 0x9A7B
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link count
137.20.3.65 137.20.3.65 617 0x80000004 0x1AB0 2
137.20.103.2 137.20.103.2 607 0x8000000E 0xE9B0 2
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
1.0.0.0 137.20.103.2 30 0x80000001 0x8AA0
137.20.30.0 137.20.3.65 1053 0x80000001 0x7A1F
137.20.30.0 137.20.103.2 603 0x80000001 0xB97A
137.20.40.0 137.20.103.2 607 0x80000006 0xE67A
137.20.100.0 137.20.3.65 1080 0x80000001 0x3E9A
137.20.100.0 137.20.103.2 603 0x80000001 0x7DF5
137.20.101.1 137.20.3.65 1080 0x80000001 0xA670
137.20.101.1 137.20.103.2 603 0x80000001 0xE5CB
137.20.101.3 137.20.3.65 1110 0x80000001 0x1045
137.20.101.3 137.20.103.2 603 0x80000001 0x4FA0
137.20.101.5 137.20.3.65 593 0x80000001 0x1D1
137.20.101.5 137.20.103.1 1982 0x80000001 0xC3EA
Router Link States (Area 30)
Link ID ADV Router Age Seq# Checksum Link count
137.20.3.65 137.20.3.65 1058 0x80000002 0x1B90 1
Summary Net Link States (Area 30)
Link ID ADV Router Age Seq# Checksum
137.20.100.0 137.20.3.65 1081 0x80000001 0x3E9A
137.20.101.1 137.20.3.65 1632 0x80000001 0xA670
137.20.101.3 137.20.3.65 1662 0x80000001 0x1045
137.20.101.5 137.20.3.65 1145 0x80000001 0x1D1
137.20.103.0 137.20.3.65 1662 0x80000001 0x9A7B
r3>
r3>sho ip rou
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter
area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
137.20.0.0/16 is variably subnetted, 8 subnets, 3 masks
C 137.20.30.0/24 is directly connected, TokenRing0
C 137.20.3.32/27 is directly connected, Loopback0
C 137.20.3.64/27 is directly connected, Loopback1
C 137.20.101.0/24 is directly connected, Serial1
O 137.20.101.1/32 [110/64] via 137.20.101.1, 00:19:46, Serial1
O 137.20.100.0/24 [110/128] via 137.20.101.1, 00:19:46, Serial1
C 137.20.103.0/24 is directly connected, Serial0
O 137.20.101.5/32 [110/128] via 137.20.101.1, 00:19:47, Serial1
r3>
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