eBGP probelm with Mikrotik and Cisco

ravish · November 2, 2010, 5:07am

Hi… All,

we are using mikrotik 4.12 on server board, we are trying to establish BGP with our client, with our upstream its working fine, but with my client is not working,

please help any one, thanks in advance.

Thi si my cisco router log,

10w3d: BGP: xx.xx.xx.xx passive open
10w3d: BGP: xx.xx.xx.xx OPEN rcvd, version 4
10w3d: BGP: xx.xx.xx.xx sending OPEN, version 4
10w3d: BGP: xx.xx.xx.xx rcv OPEN w/ OPTION parameter len: 16
10w3d: BGP: xx.xx.xx.xx rcv OPEN w/ option parameter type 2 (Capability) len 14
10w3d: BGP: xx.xx.xx.xx OPEN has CAPABILITY code: 2, length 0
10w3d: BGP: xx.xx.xx.xx OPEN has CAPABILITY code: 65, length 4
10w3d: BGP: xx.xx.xx.xx unrecognized capability code: 65 - ingored
10w3d: BGP: xx.xx.xx.xx OPEN has CAPABILITY code: 0, length 0
10w3d: BGP: xx.xx.xx.xx unrecognized capability code: 0 - ingored
10w3d: BGP: xx.xx.xx.xx OPEN has CAPABILITY code: 1, length 44
10w3d: BGP: xx.xx.xx.xx wrong length 44 for MP_EXT CAP
10w3d: BGP: xx.xx.xx.xx sending NOTIFICATION 2/7 (unsupported/disjoint capability) 0 bytes
10w3d: BGP: xx.xx.xx.xx local error close after sending NOTIFICATION
10w3d: BGP: xx.xx.xx.xx closing

-------------------------Mikrotik Log--------------------------------------------------------
Nov/02/2010 10:00:01 route,bgp,debug New incoming bgp connection
Nov/02/2010 10:00:01 route,bgp,debug LocalAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug LocalPort=179
Nov/02/2010 10:00:01 route,bgp,debug RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug RemotePort=11047
Nov/02/2010 10:00:01 route,bgp,debug,state Entering OpenSent state
Nov/02/2010 10:00:01 route,bgp,debug,state RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Sent OPEN message
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Length=45
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 2D 01 04 01 2C 00 B4 CA 3E 4D FD 10 02 0E 02
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 41 04 00 00 01 2C 01 04 00 01 00 01
Nov/02/2010 10:00:01 route,bgp,debug,packet Sent OPEN message
Nov/02/2010 10:00:01 route,bgp,debug,packet RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet Length=45
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message
Nov/02/2010 10:00:01 route,bgp,debug,packet RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet MessageLength=45
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Received OPEN packet
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Length=45
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 2D 01 04 01 2C 00 B4 CA 3E 4D FE 10 02 06 01
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 04 00 01 00 01 02 02 80 00 02 02 02 00
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capabilities option
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=6
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capability
Nov/02/2010 10:00:01 route,bgp,debug,packet Code=multiprotocol capability
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=4
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capabilities option
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=6
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capability
Nov/02/2010 10:00:01 route,bgp,debug,packet Code=128
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=0
Nov/02/2010 10:00:01 route,bgp,debug Unsupported capability received, code: 128
Nov/02/2010 10:00:01 route,bgp,debug RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capabilities option
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=6
Nov/02/2010 10:00:01 route,bgp,debug,packet OPEN Message capability
Nov/02/2010 10:00:01 route,bgp,debug,packet Code=route refresh capability
Nov/02/2010 10:00:01 route,bgp,debug,packet Lenght=0
Nov/02/2010 10:00:01 route,bgp,debug,state Entering OpenConfirm state
Nov/02/2010 10:00:01 route,bgp,debug,state RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Sent KEEPALIVE message
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Length=19
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 13 04
Nov/02/2010 10:00:01 route,bgp,debug,packet Sent KEEPALIVE message
Nov/02/2010 10:00:01 route,bgp,debug,packet RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet Length=19
Nov/02/2010 10:00:01 route,bgp,debug,packet NOTIFICATION Message
Nov/02/2010 10:00:01 route,bgp,debug,packet RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet MessageLength=21
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Received NOTIFICATION packet
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Length=21
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 15 03 02 07
Nov/02/2010 10:00:01 route,bgp,debug,state Entering Idle state
Nov/02/2010 10:00:01 route,bgp,debug,state RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Sent NOTIFICATION message
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw Length=21
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw cease, subcode=0
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Nov/02/2010 10:00:01 route,bgp,debug,packet,raw 00 15 03 06 00
Nov/02/2010 10:00:01 route,bgp,debug,packet Sent NOTIFICATION message
Nov/02/2010 10:00:01 route,bgp,debug,packet RemoteAddress=xx.xx.xx.xx
Nov/02/2010 10:00:01 route,bgp,debug,packet Length=21

mrz · November 2, 2010, 6:43am

RouterOS do not support old Router refresh capability (code 128). As you can see from the logs RouterOS sends notification about unsupported capability, cisco should close existing connection and on another connection establishment attempt it should not send unsupported capability anymore. If cisco is not doing it, then it is a cisco bug.

ravish · November 2, 2010, 11:23am

HI sir…

do you suggest any configuration in cisco or IOS changes.

Thanks
Ravish

migus · June 9, 2011, 7:59am

I’ve similar problem with 3640/12.2.8.
I’ve upgrade ios upto 12.4.23 and problem was fixed.