OSPF question

From: Carlos glez (cciecarlogon@gmail.com)
Date: Sun Aug 05 2007 - 03:41:42 ART


Hi GS,

I have a tiny problem that i cannot find the easy way out, basically I am
just trying to get an ospf neigh up on a ethernet segmet but using network
type non-brodacast
everytime i try to get the command neigh x.x.x.x under the ospf process i
get the error that the int is not NBMA, but if you see the sh ip ospf int ,
it is non-brodcast
have any of you guys have faced this, i might be missing something really
basic, any help wiill be great, below are the configs ( this exercise is in
IEwoorkbook lab1 version 3)

I did found that if i dont have a virtual link configured going across that
interface there is no problem.

R5
router ospf 1
 router-id 150.1.5.5
 log-adjacency-changes
 area 45 virtual-link 150.1.4.4<------
 redistribute eigrp 100 subnets
 network 150.1.5.5 0.0.0.0 area 0
 network 183.1.0.5 0.0.0.0 area 0
 network 183.1.45.5 0.0.0.0 area 45

interface FastEthernet0/1
 ip address 183.1.45.5 255.255.255.0
 ip ospf network non-broadcast
 ip ospf cost 65
 duplex auto
 speed auto
end

FastEthernet0/1 is up, line protocol is up
  Internet Address 183.1.45.5/24, Area 45
  Process ID 1, Router ID 150.1.5.5, Network Type NON_BROADCAST, Cost:
65<----
  Transmit Delay is 1 sec, State WAITING, Priority 1
  No designated router on this network
  No backup designated router on this network
  Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:27
    Wait time before Designated router selection 00:00:57
  Index 1/4, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 7
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 0, Adjacent neighbor count is 0
  Suppress hello for 0 neighbor(s

R5(config-if)#router ospf 1
R5(config-router)#neighbor 183.1.45.4
OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint
networks
R5(config-router)#

both router running Version 12.3(20)

R4(config-if)#do sh run int fas0/0

!
interface FastEthernet0/0
 ip address 183.1.45.4 255.255.255.0
 ip ospf network non-broadcast
 ip ospf cost 65
 duplex auto
 speed auto
end

FastEthernet0/0 is up, line protocol is up
  Internet Address 183.1.45.4/24, Area 45
  Process ID 1, Router ID 150.1.4.4, Network Type NON_BROADCAST, Cost: 65
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 150.1.4.4, Interface address 183.1.45.4
  No backup designated router on this network
  Timer intervals configured, Hello 30, Dead 120, Wait 120, Retransmit 5
    oob-resync timeout 120
    Hello due in 00:00:20
  Index 1/4, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 7
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 0, Adjacent neighbor count is 0
  Suppress hello for 0 neighbor(s)

router ospf 1
 router-id 150.1.4.4
 log-adjacency-changes
 area 45 virtual-link 150.1.5.5
 network 150.1.4.4 0.0.0.0 area 0
 network 183.1.0.4 0.0.0.0 area 0
 network 183.1.45.4 0.0.0.0 area 45
 network 183.1.46.4 0.0.0.0 area 46

R4(config-if)#router ospf 1
R4(config-router)#neigh 183.1.45.5
OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint
networks
R4(config-router)#

cheers!!

JC
<ccielab@groupstudy.com>



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