Eric Humphries ehumphri at
Mon Apr 28 03:12:38 UTC 2008

On Sun, Apr 27, 2008 at 8:14 PM, Doug Hardie <bc979 at> wrote:
> FreeBSD supports 3 firewalls:  IPF, IPFW, and PF.  Some time ago (perhaps
> years) I seem to recall some discussion that one or more of those was better
> maintained and higher quality than the others.  I don't see any indications
> of this in the handbook.  Several years ago I needed to do traffic shaping
> and used IPFW with dummynet.  It worked but the need eventually went away.
> More recently I needed to incorporate spamd which defaults to PF so I used
> that.  However, now I am back to needing traffic shaping again.  I suspect
> trying to use both PF and IPFW simultaneously will not be a good approach.
> In addition, there now are instructions for using spamd with IPFW so it
> appears that either PF or IPFW will do what I need.  Is there any additional
> information available to assist in selecting between those?  Thanks.
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PF supports traffic shaping via ALTQ.


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