AS Hijacking All Around
this just hit the north american network operators group:
seems like the following prefixes have been briefly announced by as 23520:
1/8, 2/8, 3/8, 4/8, 5/8, 7/8, 8/8, 12/8.
1/8 means 188.8.131.52 to 184.108.40.206. this representation is called cidr.
some .mil there as well.
josh karlin wrote:
check out the iar for “potential prefix hijacks” and if you’re coming
to this more than 24 hours after the post, do a search on as 23520 as
the hijacking as.
i don’t know how long the routes were announced, but they seem to be
gone now. or maybe the iar is horribly broken, in which case i will
in basic not 100% accurate terms to non network folks among us…
an asn is a way to represent a big network in the global routing table.
if someone somewhere privately announces a network space they don’t own, it’s not very good. this happens quite often, but on much smaller prefixes and usually by mistake.