I'm not saying anyone is wrong here. I merely want to point out eventual incompatabilities.
So please don't get me wrong. Regards, Marc > On 1 juin 2016, at 23:46, William Herrin <b...@herrin.us> wrote: > > On Wed, Jun 1, 2016 at 3:16 PM, Marc Storck <msto...@voipgate.com> wrote: >>> .-----------------. >>> | | >>> | B |--------- D >>> S ---------| A R | >>> | C |--------- (toward S) >>> | | >>> `-----------------' >> With BCP38 in mind, could there be situations >> where Router R is not allowed to source packets >> with address A out of interface C? > > Hi Marc, > > I think you're right. Address A in a /30 from ISP A. ISP C accepts > source addresses from your /24 but not the A /30. So if the router > does not follow the RFC (sends an ICMP packet out C with a source > address from A), typical asynchronous routing can result in > black-holding the ICMP error message. > > You've hit on a good reason to follow the RFC by default instead of > doing what Randy wants. ;) > > -Bill > > > > > -- > William Herrin ................ her...@dirtside.com b...@herrin.us > Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
