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Re: IPv6 + tunnel + ESP + IPcomp?

On Thu, 12 May 2022 at 19:24, Andy Ruhl <> wrote:
> On Thu, May 12, 2022 at 4:16 PM Andrew Cagney <> wrote:
> >
> > Is this known to interop?
> I don't do all of that on NetBSD at the moment but I really don't even
> know what you're asking. More info might be nice.

While I can get an IPv4+IPcomp+ESP interop between NetBSD and Linux to
work, I can't say the same for IPv6+IPcomp+ESP.

Now presumably this is just some mistake on my part, and a look at the
IPv6 + IPcomp + ESP test will reveal all.  Except that is only testing
NetBSD-NetBSD and for me my config that seems to work.

So before I dig further, has IPv6 IPsec ESP  been shown to interop
with non NetBSD systems?

> I tend to do transport mode ipsec and use GRE when I tunnel.
> Andy

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