IPv4 and IPv6 hijacking by AS 6

• Subject: IPv4 and IPv6 hijacking by AS 6
• From: dhubbard at dino.hostasaurus.com (David Hubbard)
• Date: Fri, 13 Apr 2018 16:38:31 +0000
• In-reply-to: <[email protected]>
• References: <[email protected]om> <[email protected]om> <[email protected]om> <[email protected]om> <[email protected]om> <[email protected]>

Unfortunately, that's how it's done in route policy on XR, so people bouncing between flavors can easily make that mistake.


On 4/13/18, 4:15 AM, "NANOG on behalf of Bjørn Mork" <nanog-bounces at nanog.org on behalf of bjorn at mork.no> wrote:

    Anurag Bhatia <me at 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...
    
    
    
    
    Bjørn
    

• References:
  • IPv4 and IPv6 hijacking by AS 6
    • From: matt at netfire.net (Matt Harris)
  • IPv4 and IPv6 hijacking by AS 6
    • From: lists at as23738.net (lists at as23738.net)
  • IPv4 and IPv6 hijacking by AS 6
    • From: matt at netfire.net (Matt Harris)
  • IPv4 and IPv6 hijacking by AS 6
    • From: job at instituut.net (Job Snijders)
  • IPv4 and IPv6 hijacking by AS 6
    • From: me at anuragbhatia.com (Anurag Bhatia)
  • IPv4 and IPv6 hijacking by AS 6
    • From: bjorn at mork.no (Bjørn Mork)

• Prev by Date: IPv4 and IPv6 hijacking by AS 6
• Next by Date: Weekly Routing Table Report
• Previous by thread: IPv4 and IPv6 hijacking by AS 6
• Next by thread: IPv4 and IPv6 hijacking by AS 6
• Index(es):
  • Date
  • Thread