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Sunday, February 3, 2013

ospf authentication...

every now and then i just have to force myself to do this again and again... can't make mistakes with stupid shit like this during pucker time... this'll kill you on the clock... it's gotta be automatic everywhere you can make it automatic... take no prisoners...

R4#debug ip ospf adj
OSPF adjacency debugging is on
R4#
Feb  3 12:42:38.416: OSPF-1 ADJ   Se1/0.34: Send with youngest Key 1
R4#debug
Feb  3 12:42:47.548: OSPF-1 ADJ   Se1/0.34: Send with youngest Key 1
R4#debug ip ospf pack
OSPF packet debugging is on
R4#
Feb  3 12:42:57.440: OSPF-1 ADJ   Se1/0.34: Send with youngest Key 1
R4#
Feb  3 12:42:58.688: OSPF-1 PAK  : rcv. v:2 t:1 l:48 rid:3.3.3.3 aid:0.0.0.34 chk:0 aut:2 keyid:1 seq:0x510E5419 from Serial1/0.34
R4#
Feb  3 12:43:07.004: OSPF-1 ADJ   Se1/0.34: Send with youngest Key 1
R4#
Feb  3 12:43:08.044: OSPF-1 PAK  : rcv. v:2 t:1 l:48 rid:3.3.3.3 aid:0.0.0.34 chk:0 aut:2 keyid:1 seq:0x510E5422 from Serial1/0.34
R4#un all
All possible debugging has been turned off

version:ospfv2 t:1 hello l:48 length rid: router id aid: area id chk: checksum aut: authentication type keyid: md5 key seq: sequence number

http://www.cisco.com/en/US/docs/ios/12_3/debug/command/reference/dbg_i2g.html#wp1055528


R4#sh ip ospf int s1/0.34
Serial1/0.34 is up, line protocol is up
  Internet Address 10.1.1.10/30, Area 34, Attached via Network Statement
  Process ID 1, Router ID 10.1.4.9, Network Type POINT_TO_POINT, Cost: 64
  Topology-MTID    Cost    Disabled    Shutdown      Topology Name
        0           64        no          no            Base
  Transmit Delay is 1 sec, State POINT_TO_POINT
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:01
  Supports Link-local Signaling (LLS)
  Cisco NSF helper support enabled
  IETF NSF helper support enabled
  Index 1/1, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 5, maximum is 5
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 3.3.3.3
  Suppress hello for 0 neighbor(s)
  Message digest authentication enabled
    Youngest key id is 1
R4#config t
Enter configuration commands, one per line.  End with CNTL/Z.
R4(config)#int s1/0.34
R4(config-subif)#no ip ospf authenti mess
R4(config-subif)#no ip ospf message-digest-key 1 md5 cisco
R4(config-subif)#
Feb  3 12:56:56.259: %OSPF-5-ADJCHG: Process 1, Nbr 3.3.3.3 on Serial1/0.34 from FULL to DOWN, Neighbor Down: Dead timer expired
R4(config-subif)#do sh ip ospf int s1/0.34
Serial1/0.34 is up, line protocol is up
  Internet Address 10.1.1.10/30, Area 34, Attached via Network Statement
  Process ID 1, Router ID 10.1.4.9, Network Type POINT_TO_POINT, Cost: 64
  Topology-MTID    Cost    Disabled    Shutdown      Topology Name
        0           64        no          no            Base
  Transmit Delay is 1 sec, State POINT_TO_POINT
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:01
  Supports Link-local Signaling (LLS)
  Cisco NSF helper support enabled
  IETF NSF helper support enabled
  Index 1/1, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 5, maximum is 5
  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)
  (no messass digest crap here where it's supposed to be)

R4(config-subif)#ip ospf authen mess
R4(config-subif)#ip ospf message-digest-key 1 md5 cisco
R4(config-subif)#end
Feb  3 12:57:42.875: %OSPF-5-ADJCHG: Process 1, Nbr 3.3.3.3 on Serial1/0.34 from LOADING to FULL, Loading Done
R4(config-subif)#end
R4#
Feb  3 12:57:45.391: %SYS-5-CONFIG_I: Configured from console by console
R4#sh ip ospf int s1/0.34
Serial1/0.34 is up, line protocol is up
  Internet Address 10.1.1.10/30, Area 34, Attached via Network Statement
  Process ID 1, Router ID 10.1.4.9, Network Type POINT_TO_POINT, Cost: 64
  Topology-MTID    Cost    Disabled    Shutdown      Topology Name
        0           64        no          no            Base
  Transmit Delay is 1 sec, State POINT_TO_POINT
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    oob-resync timeout 40
    Hello due in 00:00:04
  Supports Link-local Signaling (LLS)
  Cisco NSF helper support enabled
  IETF NSF helper support enabled
  Index 1/1, flood queue length 0
  Next 0x0(0)/0x0(0)
  Last flood scan length is 1, maximum is 5
  Last flood scan time is 0 msec, maximum is 4 msec
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 3.3.3.3
  Suppress hello for 0 neighbor(s)
  Message digest authentication enabled
    Youngest key id is 1

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