лови рабочий pf у которого нет проблем ;). И посоветую читать http://www.openbsd.org/faq/pf/example1.html
https://solarflux.org/pf/#examples
http://www.xs4all.nl/~hanb/configs/
http://www.benzedrine.cx/
http://npj.akeeper.ru/unix/gatewaysandrouters
# macros
int_if = "fxp1"
ext_if = "fxp0"
tcp_services = "{ 22, 113 }"
icmp_types = "echoreq"
priv_nets = "{ 127.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12, 10.0.0.0/8 }"
lan_net = "{ 10.22.10.0/23, 10.21.21.0/24 }"
# options
set block-policy return
set loginterface $ext_if
# scrub
scrub in all
# nat/rdr
nat on $ext_if from $int_if:network to any -> ($ext_if)
rdr on $int_if proto tcp from any to any port 21 -> 127.0.0.1 \
port 8021
rdr on $ext_if proto tcp from any to any port 80 -> $lan_net
# filter rules
block all
pass quick on lo0 all
block drop in quick on $ext_if from $priv_nets to any
block drop out quick on $ext_if from any to $priv_nets
pass in on $ext_if inet proto tcp from any to ($ext_if) \
port $tcp_services flags S/SA keep state
pass in on $ext_if proto tcp from any to $lan_net port 80 \
flags S/SA synproxy state
pass in on $ext_if inet proto tcp from port 20 to ($ext_if) \
user proxy flags S/SA keep state
pass in inet proto icmp all icmp-type $icmp_types keep state
pass in on $int_if from $int_if:network to any keep state
pass out on $int_if from any to $int_if:network keep state
pass out on $ext_if proto tcp all modulate state flags S/SA
pass out on $ext_if proto { udp, icmp } all keep state
#pflog
pass out log quick on $ext_if inet proto tcp from any to any
Вариант для распечатки
OpenNET: Виртуальная конференция (Public)
(??) on 15-Фев-06, 10:34 
