[AusNOG] Swiftel BGP contact

Adrian Chadd adrian at creative.net.au
Tue Apr 8 14:30:06 EST 2008


On Tue, Apr 08, 2008, Matthew Moyle-Croft wrote:
> I can see (for example) /29s being advertised out (and making it to our 
> routers) on at least two PIPE exchanges (only checked ADL and SYD) and WAIX.
> (The /29s on WAIX seem to come from AS2764 ...)
> 
> It seems that many still distribute an IGP into BGP for external 
> advertisement and don't do any kind of cleaning - but hardly surprising 
> considering most IP networks in Oz don't summarise beyond /24s.

You'd be surprised - I think in one case the /30's are actually their "local"
subnets - ie, they're not allocating IP space hierarchically. Advertising
/24's may expose non-local subnets to the IX.



Adrian




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