OpenBSD 4.6 Alert: match rules

The new match rules do not affect pass/block status, but can apply various actions:

match in on $dmz_if tag DMZ
## [ ... ]
pass out on $ext_if tagged DMZ

Note: all matching match rules are applied, ie several match log could generate several log entries for a single packet or connection

Queue assignment (but as always, last matching rule wins)

match in on $ext_if to $dmz_if:network port ssh queue ssh

Another favorite:

match in all scrub (no-df max-mss 1440)