How to find out which version of PF a given box is using...

Matthew Seaman m.seaman at
Wed Sep 21 08:49:26 UTC 2011

On 21/09/2011 09:17, krad wrote:
> If its been syncd to openbsd 4.5 version of pf, its still quite a way behind
> openbsd's version in the latest release as they are not on 4.9 with 5.0
> imminent. Looking at the docs there were quite a lot of changes when openbsd
> was bumped to 4.7

Yes.  However I believe this does solve the incompatibility between PF
and vimage, which is fantastic.  There's been a lot of work gone into
FreeBSD network stack to add capabilities that OpenBSD simply doesn't
have -- mostly to do with fine-grained locking, multiprocessing support
and virtualization -- all of which makes the importing process pretty



PS.  Mac OS X Lion now uses PF for firewalling too.  Apparently it's
even older than the PF in FreeBSD:

Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
                                                  Flat 3
PGP:     Ramsgate
JID: matthew at               Kent, CT11 9PW

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