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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Who is announcing bogons?
> > the fun part is watching the bgp announce/withdraws in unallocated space. > > (no matter what microsoft may have learned from their survey, most isp's > > don't seem to care which prefixes their bgp-speaking customers advertise.) > > So which ISPs are confused? Bogon's don't spontaneously occur in BGP. > Some ASN must originate them, and ASNs must pass them to other ASNs. > BGP helpfully includes the ASNs in the path. geoff huston is the only person i know who's making formal progress on that question. i know from some zebra log files that iana's unallocated space gets advertised from time to time, then withdrawn. presumably an attack was launched during the announcement but i don't have any data showing this. > What should be done about ASNs which repeatedly announce false or > unauthorized routes? apparently, nothing. to the extent that peering is by agreement, the majority of such agreements now in force do not require the other party to route-filter their customers. which is funny, since they tend to drone on endlessly about the importance of a 24x7 NOC, which in operational practice, matters lots less. (btw, anybody signed a peering agreement which requires an [email protected] mailbox yet?)
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