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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Misconfigured BGP
Hello;
I sent a previous version of this message Friday morning to the admin contact for
AS 1237, but I have as yet received no response.
I am not sure if this is a real problem - I can still ping them - but it
looks ugly to me.
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The BGP announcements for
System Engineering Research Institute (SERI) (ASN-EUNSOL)
R&D Net Group
Eoeun-dong 1, Daejon
KR
Autonomous System Name: KREONET
Autonomous System Number: 1237
appear to be misconfigured :
*> 150.183.34.0/24 157.130.46.53 0 701 6453 1237 9270 1237 i
etc.
This is a routing loop; although it may work in practice, it is not a proper
use of BGP and may not do what you intended. A list of all of
the (many) affected address blocks follows.
Regards
Marshall Eubanks
Multicast Technologies, Inc.
10301 Democracy Lane, Suite 410
Fairfax, Virginia 22030
Phone : 703-293-9624 Fax : 703-293-9609
e-mail : [email protected] http://www.on-the-i.com
Test your network for multicast : http://www.multicasttech.com/mt/
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will search for routing loops
ROUTING LOOP Detected for ASN 1237 Prefix = 150.183.34.0/24 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 150.183.35.0/24 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 150.183.38.0/24 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.118.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.119.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.120.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.121.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.122.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.123.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.124.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.125.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.230.126.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.32.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.34.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.37.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.39.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.40.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.41.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.42.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.43.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.45.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.47.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.49.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.51.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.60.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.61.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.237.62.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.241.175.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.194.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.197.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.198.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.199.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.201.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.202.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.247.203.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.250.189.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.250.191.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 203.253.247.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.98.47.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.98.58.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.98.59.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.130.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.131.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.144.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.145.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.146.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.147.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.148.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.149.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.150.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.151.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.152.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.154.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.155.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.156.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.157.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.158.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.159.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.210.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.211.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.212.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.213.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.214.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.215.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.216.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.217.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.218.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.219.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.220.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.221.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.110.223.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.59.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.60.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.61.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.62.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.63.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.85.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.90.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.119.91.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.48.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.49.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.50.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.51.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.52.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.53.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.54.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.125.55.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = 210.219.57.0 : PATH = : 1239 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 1237 Prefix = : PATH = : 701 6453 1237 9270 1237
ROUTING LOOP Detected for ASN 11303 Prefix = 216.52.158.0 : PATH = : 1239 11853 11303 11301 11303
ROUTING LOOP Detected for ASN 11303 Prefix = : PATH = : 701 11853 11303 11301 11303
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