bogon identified? how to track down bogus IPs/ASN's
math at sizone.org
Thu Sep 29 19:46:57 UTC 2016
My turn for the newb question:
I've got a traceroute with this IP in it thats close to the end of the trace.
Chasing down this IP to see who the ISP a friend is using, figured out
the diff between ARIN and APNIC whois for IPs (..bit of a learning curve, not
sure why there's not just one whois interface syntax).
whois -h whois.apnic.net -m 126.96.36.199/21
shows only the upper /22 being registered with APNIC (if you do -m on
.16.0/22, there's no entry).
So it seems to me these Ips arent registered properly with APNIC (could it
be cross-registered with another RIR? Well it's not with ARIN who'd be the local.)
But I do see this block in global bgp tables so it wasnt like someone decided to use
10.10.10/24 or 1.2.3/24 in their routing infrastructure. They're actually announcing;
sh ip bg 188.8.131.52 ends in a path with 394786 135022
looking up 394786 I see avetria networks. looking up 135022 I see nothing at ARIN.
At APNIC I get
as-block: AS134557 - AS135580
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
but nothing more specific.
However, this does show up in radb as avetria networks as well. (and various geolocate
DBs put it in Melbourn.au though i know it's in use in Kitchener ontario).
So what's not matching up here?
Ken Chase - math at sizone.org Guelph Ontario
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