[c-nsp] Re: Re: URPF on small BGP-enabled customers?

[Chris Adams]

Once upon a time, David J. Hughes <bambi at hughes.com.au> said:
> Based on that statement we'd need to connect to every transit provider 
> on the planet.  AS paths exist so that you can get from point A to 
> point B via a series of providers.  That assumption is a safe as 
> houses.

However, once you advertise to provider A the prefix with no-export, you
prevent provider A from telling their customer, network X, how to get to
you via your provider B.

-- 
Chris Adams <cmadams at hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.