07-19-2006 01:56 AM - edited 03-03-2019 04:07 AM
I m configureing ospf on two router which are directly connected on ethernet segment.
but not creating neighbour relationship
geting following output
P5#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
3.3.3.3 1 INIT/DROTHER 00:00:31 50.50.50.1 FastEthernet0/
0
7.7.7.7 1 FULL/DR 00:00:30 40.40.40.2 FastEthernet0/
1
it geting stuck in INIT state.What will be the problem ?
07-19-2006 02:28 AM
Hi Ganpat,
Could you please provide the running configurations of both the routers.
07-19-2006 03:02 AM
Thanks .royalblues
Pls see running Config of both router.
P3 (e0/1)is connected to P5(fa0/0)
PE3# sh running-config
Building configuration...
Current configuration : 1646 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname PE3
!
boot-start-marker
boot-end-marker
!
enable secret xxxx
!
no aaa new-model
!
resource policy
!
ip subnet-zero
!
!
ip cef
no ip dhcp use vrf connected
!
!
no ip ips deny-action ips-interface
!
mpls label protocol ldp
mpls traffic-eng tunnels
no ftp-server write-enable
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
no crypto isakmp ccm
!
!
!
!
interface Loopback0
ip address 3.3.x.x.255.255.255
!
interface FastEthernet0/0
ip address 172.20.13.2 255.255.255.252
duplex auto
speed auto
mpls traffic-eng tunnels
tag-switching ip
!
interface Serial0/0
ip address 10.10.10.1 255.255.255.252
mpls traffic-eng tunnels
tag-switching ip
no fair-queue
!
interface FastEthernet0/1
ip address 50.50.x.x.255.255.252
duplex auto
speed auto
mpls label protocol ldp
mpls traffic-eng tunnels
tag-switching ip
!
interface Ethernet1/0
ip address 30.30.x.x.255.255.252
half-duplex
mpls label protocol ldp
mpls traffic-eng tunnels
tag-switching ip
!
router ospf 1
mpls traffic-eng router-id Loopback0
mpls traffic-eng area 0
log-adjacency-changes
network 3.3.3.3 0.0.0.0 area 0
network 10.10.10.0 0.0.0.255 area 0
network 30.30.30.0 0.0.0.255 area 0
network 50.50.50.0 0.0.0.255 area 0
network 172.20.13.0 0.0.0.255 area 0
!
router bgp 100
no synchronization
bgp log-neighbor-changes
no auto-summary
!
ip http server
no ip http secure-server
ip classless
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
password xxx
login
!
!
end
=================
P5#sh running-config
Building configuration...
Current configuration : 1067 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname P5
!
boot-start-marker
boot-end-marker
!
enable secret xxx.
!
no aaa new-model
!
resource policy
!
memory-size iomem 25
ip subnet-zero
!
!
ip cef
!
!
!
mpls label protocol ldp
mpls traffic-eng tunnels
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Loopback0
ip address 5.5.x.x.255.255.255
!
interface FastEthernet0/0
ip address 50.50.x.x.255.255.252
duplex auto
speed auto
mpls label protocol ldp
mpls ip
mpls traffic-eng tunnels
!
interface FastEthernet0/1
ip address 40.40.x.x.255.255.252
duplex auto
speed auto
mpls label protocol ldp
mpls traffic-eng tunnels
!
router ospf 1
log-adjacency-changes
network 5.5.5.5 0.0.0.0 area 0
network 40.40.40.0 0.0.0.255 area 0
network 50.50.50.0 0.0.0.255 area 0
!
ip http server
no ip http secure-server
ip classless
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
line aux 0
line vty 0 4
password xxx
login
!
!
end
07-19-2006 03:26 AM
Hi,
2 things:
- what is the output of 'sh ip ospf neighbor' on P3
- can you ping the 50.50.50.x addresses from either end ?
Paresh
07-19-2006 03:29 AM
Can you check by having the same configuration on
both the ethernet interfaces connected to each other.
Narayan
07-20-2006 01:51 AM
Thanks Narayan and paresh.
Actually i m able to ping from PE3 to PE5 but not form PE5 to PE3.and regarding configuration ,is same on both side's.
07-20-2006 05:35 AM
You may have to debug ospf , that will usually give you an idea why it is not coming up . Check that the MTU size is the same on both interfaces.
04-10-2015 10:22 PM
Hi ,
OSPF can be stuck in INIT due to the mismatch in hello packet parameters such as
1. Hello/dead intervals
2. Authentication
3. Stubflag
4. Interface subnet mask
5. Area ID
MTU will come into picture when the exstart state get active (if there is an MTU mismatch it will not get into EXSTART).
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide