dealing with bogon spam ?

[leslie at craigslist.org (Leslie)]

John Kristoff wrote:
> On Thu, 29 Oct 2009 03:24:17 +1300
> Nathan Ward <nanog at daork.net> wrote:
> 
>> I can't see anything on their site that provides a BGP feed of  
>> prefixes allocated by RIRs, which I think is what we're talking
>> about here.
> 
> We currently provide A BGP bogon route server feed for the asking,
> which are routes of 'well known' aggregate prefixes published by IANA as
> well as special and reserved netblocks documented by a IETF that should
> not be seen on the public net.
> 
> Providing a feed of allocations would be the opposite approach of
> course.
> 
> I suppose if there is interest and a need we could do this.  Shoot
> myself or the team (info at cymru.com)  a note off list if you have
> thoughts on the matter or simply want to provide some feedback into
> such a service and how it might best be used.  We're always on the look
> out for things we can do to help.
> 


My big issue isn't the larger blocks, it's the smaller unallocated 
blocks - which anyone with a not-too-strict transit provider could 
easily steal and abuse.  Getting the allocated space is just another way 
of finding the smaller unallocated blocks (with a bit of extra work)