OSPF Packet Tracer Problem

Problem: Router not appearing in show ip ospf neighors
Scenario: I configured ospf on all routers in a similar manner, then tried pinging different networks to test my configurations. I found out I couldn't ping the networks of the 2 Fast Ethernet connections on Router 4(named BB1), but I could ping the serial interface connecting router 4 and router 1. Since they should (atleast I think they should) have a similar setup with router 3 and router 4, I can't seem to find the problem.

P.S. I replaced the multiple "!" lines with "..." to shorten post.

Outputs:
BB1/Router4
show running-config
Current configuration : 1073 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname BB1
!
...
!
interface Loopback0
description BB1
ip address 5.5.5.5 255.255.255.255
!
interface FastEthernet0/0
ip address 172.16.10.254 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 172.16.11.254 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
clock rate 2000000
shutdown
!
interface Serial0/1
no ip address
clock rate 2000000
shutdown
!
interface Serial0/2
ip address 10.1.1.2 255.255.255.0
!
interface Serial0/3
no ip address
clock rate 2000000
shutdown
!
interface FastEthernet1/0
no ip address
duplex auto
speed auto
shutdown
!
interface FastEthernet1/1
no ip address
duplex auto
speed auto
shutdown
!
router ospf 1
log-adjacency-changes
network 172.16.11.0 0.0.0.255 area 0
network 172.16.10.0 0.0.0.255 area 0
network 10.1.1.0 0.0.0.255 area 0
!
ip classless
!
...
!
line con 0
line vty 0 4
login
!
!
!
end

show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.16.10.254 YES manual up up

FastEthernet0/1 172.16.11.254 YES manual up up

Serial0/0 unassigned YES unset administratively down down

Serial0/1 unassigned YES unset administratively down down

Serial0/2 10.1.1.2 YES manual up up

Serial0/3 unassigned YES unset administratively down down

FastEthernet1/0 unassigned YES unset administratively down down

FastEthernet1/1 unassigned YES unset administratively down down

Loopback0 5.5.5.5 YES manual up up

show ip ospf interface
FastEthernet0/0 is up, line protocol is up
Internet address is 172.16.10.254/24, Area 0
Process ID 1, Router ID 5.5.5.5, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 5.5.5.5, Interface address 172.16.10.254
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:03
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
FastEthernet0/1 is up, line protocol is up
Internet address is 172.16.11.254/24, Area 0
Process ID 1, Router ID 5.5.5.5, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 5.5.5.5, Interface address 172.16.11.254
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:03
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Serial0/2 is up, line protocol is up
Internet address is 10.1.1.2/24, Area 0
Process ID 1, Router ID 5.5.5.5, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:02
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 1.1.1.1
Suppress hello for 0 neighbor(s)

show ip ospf neighbors
Neighbor ID Pri State Dead Time Address Interface
1.1.1.1 0 FULL/ - 00:00:36 10.1.1.1 Serial0/2

Router 1
show running-config
Current configuration : 1086 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname R1
!
...
!
interface Loopback0
description R1
ip address 1.1.1.1 255.255.255.255
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
shutdown
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
shutdown
!
interface Serial0/0
ip address 192.168.1.17 255.255.255.240
clock rate 64000
!
interface Serial0/1
ip address 192.168.1.49 255.255.255.240
clock rate 64000
!
interface Serial0/2
ip address 10.1.1.1 255.255.255.0
clock rate 64000
!
interface Serial0/3
no ip address
clock rate 2000000
shutdown
!
interface FastEthernet1/0
no ip address
duplex auto
speed auto
shutdown
!
interface FastEthernet1/1
no ip address
duplex auto
speed auto
shutdown
!
router ospf 1
log-adjacency-changes
network 192.168.1.16 0.0.0.15 area 0
network 192.168.1.48 0.0.0.15 area 0
network 10.1.1.0 0.0.0.15 area 0
!
ip classless
!
...
!
line con 0
line vty 0 4
login
!
!
!
end

show ip interface brief
Interface IP-Address OK? Method Status Protocol

FastEthernet0/0 unassigned YES unset administratively down down

FastEthernet0/1 unassigned YES unset administratively down down

Serial0/0 192.168.1.17 YES manual up up

Serial0/1 192.168.1.49 YES manual up up

Serial0/2 10.1.1.1 YES manual up up

Serial0/3 unassigned YES unset administratively down down

FastEthernet1/0 unassigned YES unset administratively down down

FastEthernet1/1 unassigned YES unset administratively down down

Loopback0 1.1.1.1 YES manual up up

show ip ospf interface
Serial0/2 is up, line protocol is up
Internet address is 10.1.1.1/24, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:01
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 5.5.5.5
Suppress hello for 0 neighbor(s)
Serial0/0 is up, line protocol is up
Internet address is 192.168.1.17/28, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:06
Index 2/2, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 2.2.2.2
Suppress hello for 0 neighbor(s)
Serial0/1 is up, line protocol is up
Internet address is 192.168.1.49/28, Area 0
Process ID 1, Router ID 1.1.1.1, Network Type POINT-TO-POINT, Cost: 64
Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0
No designated router on this network
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:06
Index 3/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1 , Adjacent neighbor count is 1
Adjacent with neighbor 3.3.3.3
Suppress hello for 0 neighbor(s)

show ip ospf neighbors
Neighbor ID Pri State Dead Time Address Interface
2.2.2.2 0 FULL/ - 00:00:36 192.168.1.18 Serial0/0
3.3.3.3 0 FULL/ - 00:00:36 192.168.1.50 Serial0/1
5.5.5.5 0 FULL/ - 00:00:35 10.1.1.2 Serial0/2

Image 1.jpg

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Comments

georgemc

I cut and pasted your configs into PT 5.3 with Router1, Router 4, and the 2 hubs off of Router4 and it worked great. The routes were advertised from R4 to R1 and I could ping from R1 to both FastEthernet interfaces on R4 from R1.

whitehat_dreams

Uhmm, sorry if I got this wrong but... this means it SHOULD be working right? T_T
So can you help me figure out what is wrong with my setup? Would have attached pkt file here but it doesn't to be allowed.

Darthn3ss

I have no useful response at this time, but who uses hubs? :P

whitehat_dreams

Darthn3ss wrote: »

I have no useful response at this time, but who uses hubs? :P

Ehehe, was originally using switches (switches can still be seen in topology, just not connected) used hubs temporarily to see if I could isolate problem faster with them (since I'm not used to switches,will be tackling them next module).

Anyway, I seem to have [strike]fixed[/strike] done something wrong with this configuration. Since I re-made it (using switches this time :P) and it worked. But I don't seem to have noticed me doing anything special.
Trying to find a way to upload the pkt file with the problem so that someone can teach me what I did wrong.

P.S. is posting a mediafire link here ok? I didn't notice anything of the sort when I scan thru forum read me.

vinbuck

OSPFv2 (IPv4) needs the following to match to form an adjacancy:

Subnet
MTU
Area Type
OSPF Interface Type
Hello/Dead Timers

I see one of those on the list that don't match from your output...

whitehat_dreams

... Uhhh, MTU? is that the wild card mask? (sorry don't remember that from lessons).
Anyway... apparently I made an error somewhere with IP addresses, it worked when I tried to redo the whole network.
Would appreciate if there is a way (and someone can teach me) how to figure out what I did wrong though.
Since I can't seem to find where I made the mistake in this setup.

with problem.pkt <- .pkt file with problem.

P.S. If the posting of the link is not allowed please remove, since no one commented on it in prior post.