====== pf(Packet Filter) ======
OpenBSD由来のpf(Packet Filter)をFreeBSDで使う時の話。

  * [[http://www.jp.freebsd.org/cgi/mroff.cgi?sect=5&cmd=&lc=1&subdir=man&dir=jpman-6.0.0%2Fman&subdir=man&man=pf.conf|pf.conf(5)]]

----
>メモ

  * /sys/amd64/conf/GENERIC_PFに追加（ALTQがない場合はpf起動時やpfctl -ss参照時に警告が出て見にくいので）
    * <code>device pf
device pflog
device pfsync
options ALTQ
options ALTQ_CBQ # Class Bases Queuing (CBQ)
options ALTQ_RED # Random Early Detection (RED)
options ALTQ_RIO # RED In/Out
options ALTQ_HFSC # Hierarchical Packet Scheduler (HFSC)
options ALTQ_CDNR
options ALTQ_PRIQ # Priority Queuing (PRIQ)
options ALTQ_NOPCC # Required for SMP build</code>