Re: IPv4 and IPv6 hijacking by AS 6

[David Hubbard <dhubbard () dino hostasaurus com>]

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 () nanog org on behalf of bjorn () mork no> wrote:

    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...
    
    
    
    
    Bjørn