[Openswan Users] [strongSwan] ERROR: netlink response for Add SA esp.383251e8 at included errno 93: Protocol not supported

Martin Mokrejs mmokrejs at fold.natur.cuni.cz
Wed Dec 29 20:51:53 EST 2010

Michael H. Warfield wrote:
> Hello,
> On Thu, 2010-12-30 at 00:40 +0100, Martin Mokrejs wrote:

> The next obvious question is...  That bug is predicated on having IPv6
> disabled.  Have you somehow disabled IPv6 for some reason?  If so, WHY?
> The time for IPv4-only is now long past.  IANA is about to assign out
> the last IPv4 blocks it has and we're done.  I just flat out don't
> operate without IPv6 (and I have enough IPv6 only resources I depend on
> that I couldn't even if I wanted to).  I probably will NOT be able to
> help you if you are running with v6 disabled and have to for some
> strange reason.  It's no longer a viable configuration in my
> environment.


                                     [optional] FreeS/WAN does not currently
                                     support IPv6, though work on integrating
                                     FreeS/WAN with the Linux IPv6 stack has
                                     begun. Details.

                                     It should be possible to use IPv4
                                     FreeS/WAN on a machine which also does
                                     IPv6. This combination is not yet well
                                     tested. We would be quite interested in
                                     hearing results from anyone expermenting
                                     with it, via the mailing list.

                                     We do not recommend using IPv6 on
                                     production FreeS/WAN gateways until more
                                     testing has been done.

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