01-22-2012 10:53 PM - edited 03-04-2019 02:59 PM
OSPF adjacency is not established. HELP.
router1(X)async1/10----[modem1]------leased line------[modem2]----Serial0/2/2(X)router2
router1#sh ver
Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(8a), RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc.
Compiled Wed 19-Jul-06 23:21 by prod_rel_team
ROM: System Bootstrap, Version 12.4(1r) [hqluong 1r], RELEASE SOFTWARE (fc1)
router1 uptime is 13 weeks, 4 days, 17 hours, 29 minutes
System returned to ROM by power-on
System image file is "flash:c2800nm-ipbase-mz.124-8a.bin"
Cisco 2811 (revision 53.51) with 251904K/10240K bytes of memory.
Processor board ID FCZ10407230
2 FastEthernet interfaces
5 Serial interfaces
16 terminal lines
5 Channelized E1/PRI ports
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
router1#
router1#sh run
...
!
interface Async1/10
description Link to router2
bandwidth 20
ip address 10.5.253.117 255.255.255.252
encapsulation ppp
async mode dedicated
!
...
!
router ospf 200
log-adjacency-changes
network 10.5.253.116 0.0.0.3 area 200
!
...
line 1/10
modem InOut
stopbits 1
speed 57600
flowcontrol hardware
...
router1#
router1#sh ip ospf int as1/10
Async1/10 is up, line protocol is up
Internet Address 10.5.253.117/30, Area 200
Process ID 200, Router ID 10.105.254.194, Network Type POINT_TO_POINT, Cost: 5000
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 00:00:05
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
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)
router1#sh int as1/10
Async1/10 is up, line protocol is up
Hardware is CD2430 in async mode
Description: Link to router2
Internet address is 10.5.253.117/30
MTU 1500 bytes, BW 20 Kbit, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 12/255
Encapsulation PPP, LCP Open
Open: IPCP, loopback not set
Keepalive not set
DTR is pulsed for 5 seconds on reset
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 2d20h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/2/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 15 kilobits/sec
5 minute input rate 1000 bits/sec, 3 packets/sec
5 minute output rate 0 bits/sec, 2 packets/sec
669 packets input, 47196 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
2525 packets output, 101721 bytes, 0 underruns
0 output errors, 0 collisions, 199 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
router1#
________________________________________________________________________________ ________
router2#sh run
...
!
interface Serial0/2/2
physical-layer async
bandwidth 20
ip address 10.5.253.118 255.255.255.252
ip load-sharing per-packet
encapsulation ppp
async mode dedicated
!
...
!
router ospf 200
log-adjacency-changes
network 10.5.253.116 0.0.0.3 area 200
!
router2#sh int s0/2/2
Serial0/2/2 is up, line protocol is up
Hardware is HWIC-Serial
Description: Link to router1
Internet address is 10.5.253.118/30
MTU 1500 bytes, BW 20 Kbit/sec, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: IPCP, loopback not set
Keepalive not set
DTR is pulsed for 5 seconds on reset
Last input 00:02:32, output 00:02:32, output hang never
Last clearing of "show interface" counters 2d01h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/3/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 15 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
244 packets input, 31242 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
303 packets output, 12711 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=down RTS=down CTS=up
router2#sh ip ospf interface s0/2/2
Serial0/2/2 is up, line protocol is up
Internet Address 10.5.253.118/30, Area 200
Process ID 200, Router ID 10.5.253.118, Network Type POINT_TO_POINT, Cost: 5000
Transmit Delay is 1 sec, State POINT_TO_POINT
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
No Hellos (Passive interface)
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 0, maximum is 0
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)
router2#sh ver
Cisco IOS Software, 2800 Software (C2800NM-IPBASE-M), Version 12.4(15)T10, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Mon 14-Sep-09 14:01 by prod_rel_team
ROM: System Bootstrap, Version 12.4(13r)T11, RELEASE SOFTWARE (fc1)
router2 uptime is 2 days, 19 hours, 16 minutes
System returned to ROM by power-on
System image file is "flash:c2800nm-ipbase-mz.124-15.T10.bin"
Cisco 2811 (revision 53.50) with 249856K/12288K bytes of memory.
Processor board ID FHK1346F2R6
2 FastEthernet interfaces
4 Low-speed serial(sync/async) interfaces
DRAM configuration is 64 bits wide with parity enabled.
239K bytes of non-volatile configuration memory.
62720K bytes of ATA CompactFlash (Read/Write)
Configuration register is 0x2102
router2#
Solved! Go to Solution.
01-22-2012 11:22 PM
Thanks Ryhor,
Did you try configuring command "async default routing" on both sides. I think that is needed on AS for OSPF to work.
Nik
01-22-2012 10:59 PM
To Start with:
- can you ping successfully between those serial interfaces?
- Does your provider allow multicast on the leased line?
- you can "debug ip ospf" to see what is going on.
Nik
01-22-2012 11:11 PM
1)
router2#ping 10.5.253.117
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.5.253.117, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 176/206/227 ms
router2#
2)
leased line - it is only 4-wired leased line. Modems conected at 19200 bits/s
router2#ping 224.0.0.5
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 224.0.0.5, timeout is 2 seconds:
Reply to request 0 from 10.5.253.117, 404 ms
router2#
01-22-2012 11:22 PM
Thanks Ryhor,
Did you try configuring command "async default routing" on both sides. I think that is needed on AS for OSPF to work.
Nik
01-22-2012 11:39 PM
oh i am sorry, there was a mistake! there is on on side (router1 async interface):Hello due in 00:00:05
but on other (router2 serial interface in async mode) No Hellos (Passive interface)
But on router1 on other async interface OSPF works.
01-22-2012 11:46 PM
Oh!!! It's great? after configuring command "async default routing" on both serial and async interfaces, OSPF adjacency established
router2#sh ip ospf nei
Neighbor ID Pri State Dead Time Address Interface
10.105.254.194 0 FULL/ - 00:00:32 10.5.253.117 Serial0/2/2
router2#
router1#sh ip ospf nei
Neighbor ID Pri State Dead Time Address Interface
10.5.2.174 0 FULL/ - 00:00:35 10.5.253.118 Async1/10
router1#
Thank You, Nikolay Karpyshev!
01-23-2012 12:08 AM
Glad it is wo0rking now. You can mark my answer as a correct one to close this thread and make it usefull for others later.
Cheers,
Nik
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