nanog mailing list archives

Re: Updated prefix filtering


From: Frederik Kriewitz <frederik () kriewitz eu>
Date: Sun, 10 May 2015 18:55:07 +0200

Hello Dave,

On Sun, May 10, 2015 at 1:49 AM, Dave Taht <dave.taht () gmail com> wrote:
I have had a piece long on the spike on how we implemented bcp38 for
linux (openwrt) devices using the ipset facility.

We had a different use case (preventing all possible internal rfc1918
network addresses from escaping, while still allowing punching through
one layer of nat ), but the underlying ipset facility was easily
extendible to actually do bcp38 and fast to use, so that is what we
ended up calling the openwrt package. Please contact me offlist if you
would like a peek at that piece, because the article had some
structural problems and we never got around to finishing/publishing
it, and I would like to....

has there been a bcp38 equivalent published for ipv6?

I don't see how this is related to the OPs problem.
But there's the rpfilter iptables module which can be used for BCP38
IPv4 and IPv6 implementations on linux routers.


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