Martin Willi martin at strongswan.org
Tue Apr 22 10:37:47 CEST 2014

Hi Mark,

> Is there a way to include a NON_FIRST_FRAGMENTS_ALSO Notify payload in an
> IKE_AUTH?  I don't see an ipsec.conf  config setting, I don't see a
> strongswan.conf setting, in the code I see NON_FIRST_FRAGMENTS_ALSO in an
> enum construct but don't see it being set at all?

Currently there is no option to set NON_FIRST_FRAGMENTS_ALSO, and we
just don't send it.

It certainly would make sense to send this notify on kernel backends
supporting/doing it, so we probably should have a kernel backend
capability flag instead of a manual ipsec.conf option.

I haven't tested in detail which of our backends actually can handle
fragments on SAs with specific protocol/port selectors. And for those
supporting it, we would need an option to disable sending such fragments
if the peer can't handle it, which is probably even more difficult.


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