ISP's who where affected by the misconfiguration: start using IRR and checking your BGP updates
sthaug at nethelp.no
sthaug at nethelp.no
Mon Feb 25 16:40:05 UTC 2008
> I've only dealt with a handful of the bigger networks, but every transit
> BGP session I've ever been the customer role on has been filtered by the
> provider. From memory and in no particular order, that's UUNet, Level3,
> Digex, Intermedia, Global Crossing, Genuity, Sprint, Above.net, Time
> Warner, C&W, MCI, XO, Broadwing, and a few smaller ones nobody's likely to
> have heard of.
There's at least one reasonably big transit provider that does *not*
do prefix filtering: TeliaSonera (AS 1299). They *do* perform as-path
filtering, but the effectiveness is disputable...
> As an ISP providing transit, all of our customers get prefix-filtered.
Same here.
Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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