nanog at ics-il.net
Thu Aug 17 11:35:50 UTC 2017
Strict vs. loose.
Intelligent Computing Solutions
----- Original Message -----
From: "Mikael Abrahamsson" <swmike at swm.pp.se>
To: "chris" <tknchris at gmail.com>
Cc: "NANOG list" <nanog at nanog.org>
Sent: Thursday, August 17, 2017 1:27:17 AM
Subject: Re: Cogent BCP-38
On Thu, 17 Aug 2017, chris wrote:
> Time for someone to bake them a bcp38 cake ....
I am all for people deploying BCP38, but from the original email this is
definitely not a cause for celebration. BCP38 should be used against
single homed customers only if you're doing it by using uRPF. Otherwise
extreme care needs to be taken to make sure traffic isn't dropped because
uRPF does the wrong thing (like it seems in this case).
Mikael Abrahamsson email: swmike at swm.pp.se
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