[LINK] Storm Worm Botnet More Powerful Than Top Supercomputers
Adrian Chadd
adrian at creative.net.au
Thu Sep 13 12:42:53 AEST 2007
On Thu, Sep 13, 2007, Craig Sanders wrote:
> > Routing isn't -that- simple. How and when should they choose not to
> > advertise your subnet?
>
> you've been in the ISP industry, you should know that there's a protocol
> for handling such routing advertisements. it's called BGP. it's in
> common, near-universal, use between ISP's routers.
>
> e.g. i know (by running traceroute from my machine at work to my machine
> at home) that my upstream ISP stops advertising my /24 if my adsl link
> goes down. the traceroute peters out long before it gets to my ISP's
> network....in fact, it stops as soon as it leaves my employer's network.
And I'm aware of exactly how stupid it is to tie your BGP announcement
into some residential or typicalbusiness gateway being up.
Anyway, end of this thread for me.
Adrian
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