nanog mailing list archives
Re: IPv4 and IPv6 hijacking by AS 6
From: "Jason S. Cash" <cash () udel edu>
Date: Fri, 13 Apr 2018 14:17:47 -0400 (EDT)
On Fri, 13 Apr 2018, Bjørn Mork wrote:
Date: Fri, 13 Apr 2018 10:13:47 +0200 From: Bjørn Mork <bjorn () mork no> To: Anurag Bhatia <me () anuragbhatia com> Cc: North American Network Operators' Group <nanog () nanog org> Subject: Re: IPv4 and IPv6 hijacking by AS 6 Anurag Bhatia <me () anuragbhatia com> writes:Similar for AS2.I believe we've seen bogus low AS number announcements a few times before, and they've usually been caused by attemts to configure AS path prepending without understanding and/or reading the docs. Someone might have wrongly assumed that set as-path prepend 133711 133711 could be written shorter like set as-path prepend 133711 2 and there you go...
Yes, ASN2 sees about 1-4 configuration related "rogue" announcements per month. What is going on right now does not appear to be a small misconfiguration.
The only route we (University of Delaware) are announcing w/ ASN2 is 128.4.0.0/16.
Jason Jason Cash Deputy CIO University of Delaware cash () udel edu 302-831-0461
Current thread:
- IPv4 and IPv6 hijacking by AS 6 Matt Harris (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Loganaden Velvindron (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 lists (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Matt Harris (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Job Snijders (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Anurag Bhatia (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Bjørn Mork (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 David Hubbard (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 Jason S. Cash (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 Job Snijders (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 Randy Bush (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 Christopher Morrow (Apr 13)
- Re: IPv4 and IPv6 hijacking by AS 6 Bjørn Mork (Apr 14)
- Re: IPv4 and IPv6 hijacking by AS 6 Matt Harris (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Vincent Bernat (Apr 12)
- Re: IPv4 and IPv6 hijacking by AS 6 Theodore Baschak (Apr 13)