[AusNOG] Filtering of downstream transit customer routes via RPF

Paul Wilkins paulwilkins369 at gmail.com
Mon Jun 15 22:35:43 EST 2015


People still use strict mode? Zounds...

Paul Wilkins

On 15 June 2015 at 22:23, Andrew Yager <andrew at rwts.com.au> wrote:

> Hey all,
>
> We had a bit of a debate this morning in the office around what was the
> “right" way to handle RPF on downstream customer links; i.e. should it be
> loose or strict mode.
>
> As we have engineers who are, for valid reasons, diametrically opposed;
> and we seem to have conflicting statements as to what our various upstreams
> do and don’t do.
>
> I’m all for opening cans of worms; so what do other network operators
> think the “right” way to treat ingress filtering on downstream customer
> links is? Bonus points for references to documents we should have read,
> that set out how we should do our jobs :)
>
> Thanks,
> Andrew
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