Re: [Grubb's] Random Thoughts of the Day
Posted: Tue Jan 19, 2016 6:09 pm
A small note of pedantry: it is not a requirement that you have your own IP space to have your own ASN. The requirement is simply that your routing policy differs from that of your peers. A common case where you might have this happen but not have your own IP space is if you started out single homed using PA space from your one upstream provider then became multi-homed (maybe just because you peered some other local network) but continued to use that PA space exclusively. Of course, there's also no requirement that your IP space, if you do have it, come from your local Internet registry. It could be old legacy space, leased space, space from another registry, or basically anything you have an LOA for.
And yes, the ability to fuck up other people's shit is one of the "fun" parts of BGP. The Internet community is trying to do something about that using RPKI, but deployment has been slow especially in the Americas. ARIN's trust anchor policies have not helped.
SS7 is roughly the equivalent for the telephone system, though typical for the PSTN it incorporates a whole bunch of other cruft unrelated to call routing, too.
And yes, the ability to fuck up other people's shit is one of the "fun" parts of BGP. The Internet community is trying to do something about that using RPKI, but deployment has been slow especially in the Americas. ARIN's trust anchor policies have not helped.
SS7 is roughly the equivalent for the telephone system, though typical for the PSTN it incorporates a whole bunch of other cruft unrelated to call routing, too.
