ipfilter problem on OpenBSD 2.6 (last snaphsot)

[Marco Giardini <marco@tecnogi.com>]

I'm implementing a FW on a OpenBSD server (2.6 snapshot release), but
I'm having problem with group options.

In my ipf.rules I have:
block in quick on pn0 head 10
  block in      quick on pn0 from 192.168.0.0/16   to any  group 10

and some other lines referring as the above one to group 10.

Unfortuantely running the ipf, i get the following error message:
unexpected keyword (head) - from
ioctl(SIOCADDFR): No such process

>From the documentation, this should be the correct sintax, but .. it
seems not to work properly.
Thanks for replying.

Marco
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