From: Michael Snyder (msnyder@xxxxxxx)
Date: Mon May 27 2002 - 02:03:18 GMT-3
I'll let you figure it out. First take note that I can ping networks
1.1.1.1 and 3.3.3.3. Second notice that ospf has no subnets or
neighbors in common. None! Yet a full ospf database.
A#show run
Building configuration...
!
hostname A
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 2.2.2.2 255.255.255.0
ip ospf network point-to-point
!
interface Tunnel0
ip unnumbered Loopback1
tunnel source Loopback1
tunnel destination 4.4.4.4
!
interface Serial1
ip address 10.0.0.1 255.255.255.252
clockrate 56000
!
router ospf 80
log-adjacency-changes
network 1.1.1.0 0.0.0.255 area 1
network 2.2.2.0 0.0.0.255 area 0
!
ip route 4.4.4.0 255.255.255.0 Serial1
A#si
Gateway of last resort is not set
1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback1
3.0.0.0/24 is subnetted, 1 subnets
O IA 3.3.3.0 [110/11112] via 4.4.4.4, 00:07:13, Tunnel0
4.0.0.0/24 is subnetted, 1 subnets
S 4.4.4.0 is directly connected, Serial1
10.0.0.0/30 is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial1
A#p 3.3.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/40/40 ms
A#show ip ospf n
Neighbor ID Pri State Dead Time Address
Interface
4.4.4.4 1 FULL/ - 00:00:38 4.4.4.4
Tunnel0
A#show ip ospf d
OSPF Router with ID (2.2.2.2) (Process ID 80)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link
count
2.2.2.2 2.2.2.2 459 0x80000015 0xC28B 2
4.4.4.4 4.4.4.4 460 0x80000002 0x2A26 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 2.2.2.2 496 0x80000001 0x33FD
3.3.3.0 4.4.4.4 455 0x80000002 0xAC75
Router Link States (Area 1)
Link ID ADV Router Age Seq# Checksum Link
count
2.2.2.2 2.2.2.2 233 0x80000004 0x77A3 1
Summary Net Link States (Area 1)
Link ID ADV Router Age Seq# Checksum
2.2.2.0 2.2.2.2 791 0x80000001 0xF1F
3.3.3.0 2.2.2.2 455 0x80000001 0x791F
4.4.4.0 2.2.2.2 455 0x80000001 0x5540
A#
C#show run
Building configuration...
!
hostname C
!
!
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
ip ospf network point-to-point
!
interface Loopback1
ip address 4.4.4.4 255.255.255.0
ip ospf network point-to-point
!
interface Tunnel0
ip unnumbered Loopback1
tunnel source Loopback1
tunnel destination 2.2.2.2
!
interface Ethernet0
no ip address
!
interface Serial1
ip address 10.0.0.2 255.255.255.252
!
router ospf 80
log-adjacency-changes
network 3.3.3.0 0.0.0.255 area 2
network 4.4.4.0 0.0.0.255 area 0
!
ip classless
ip route 2.2.2.0 255.255.255.0 Serial1
!
end
C#show ip route
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
1.0.0.0 0xFFFFFF00 is subnetted, 1 subnets
O IA 1.1.1.0 [110/11112] via 2.2.2.2, 00:05:27, Tunnel0
2.0.0.0 0xFFFFFF00 is subnetted, 1 subnets
S 2.2.2.0 is directly connected, Serial1
3.0.0.0 0xFFFFFF00 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0
4.0.0.0 0xFFFFFF00 is subnetted, 1 subnets
C 4.4.4.0 is directly connected, Loopback1
10.0.0.0 0xFFFFFFFC is subnetted, 1 subnets
C 10.0.0.0 is directly connected, Serial1
C#p 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 44/50/64 ms
C#show ip ospf nei
Neighbor ID Pri State Dead Time Address
Interface
2.2.2.2 1 FULL/ - 00:00:37 2.2.2.2
Tunnel0
C#show ip ospf data
OSPF Router with ID (4.4.4.4) (Process ID 80)
Router Link States (Area 0)
Link ID ADV Router Age Seq# Checksum Link
count
2.2.2.2 2.2.2.2 367 0x80000015 0xC28B 2
4.4.4.4 4.4.4.4 367 0x80000002 0x2A26 2
Summary Net Link States (Area 0)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 2.2.2.2 404 0x80000001 0x33FD
3.3.3.0 4.4.4.4 362 0x80000002 0xAC75
Router Link States (Area 2)
Link ID ADV Router Age Seq# Checksum Link
count
4.4.4.4 4.4.4.4 376 0x80000001 0x15F2 1
Summary Net Link States (Area 2)
Link ID ADV Router Age Seq# Checksum
1.1.1.0 4.4.4.4 356 0x80000001 0x8511
2.2.2.0 4.4.4.4 358 0x80000001 0x6132
4.4.4.0 4.4.4.4 368 0x80000001 0x8A95
C#
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:59:09 GMT-3