#	$FreeBSD: src/etc/pf.conf,v 1.3 2006/01/27 17:16:20 mlaier Exp $
#	$OpenBSD: pf.conf,v 1.21 2003/09/02 20:38:44 david Exp $
#
# See pf.conf(5) and /usr/share/examples/pf for syntax and examples.
# Required order: options, normalization, queueing, translation, filtering.
# Macros and tables may be defined and used anywhere.
# Note that translation rules are first match while filter rules are last match.

# Macros: define common values, so they can be referenced and changed easily.
ext_if="xl0"	# replace with actual external interface name i.e., dc0
int_if="vr0"	# replace with actual internal interface name i.e., dc1

# Tables: similar to macros, but more flexible for many addresses.
#table <foo> { 10.0.0.0/8, !10.1.0.0/16, 192.168.0.0/24, 192.168.1.18 }

# Options: tune the behavior of pf, default values are given.
#set timeout { interval 10, frag 30 }
#set timeout { tcp.first 120, tcp.opening 30, tcp.established 86400 }
#set timeout { tcp.closing 900, tcp.finwait 45, tcp.closed 90 }
#set timeout { udp.first 60, udp.single 30, udp.multiple 60 }
#set timeout { icmp.first 20, icmp.error 10 }
#set timeout { other.first 60, other.single 30, other.multiple 60 }
#set timeout { adaptive.start 0, adaptive.end 0 }
#set loginterface none
#set optimization normal
#set require-order yes
#set fingerprints "/etc/pf.os"

set limit states 25000
set block-policy drop
set skip on lo0

# Normalization: reassemble fragments and resolve or reduce traffic ambiguities.
scrub in all

# Translation: specify how addresses are to be mapped or redirected.
# nat: packets going out through $ext_if with source address $internal_net will
# get translated as coming from the address of $ext_if, a state is created for
# such packets, and incoming packets will be redirected to the internal address.
#
binat on $ext_if from 10.69.69.30 to any -> AAA.BBB.CCC.30
binat on $ext_if from 10.69.69.60 to any -> AAA.BBB.CCC.60

nat on $ext_if from $int_if:network to any -> ($ext_if)

# rdr: packets coming in on $ext_if with destination $external_addr:1234 will
# be redirected to 10.1.1.1:5678. A state is created for such packets, and
# outgoing packets will be translated as coming from the external address.
#rdr on $ext_if proto tcp from any to $external_addr/32 port 1234 -> 10.1.1.1 port 5678

# https to freezer
rdr pass on $ext_if proto tcp from any to $ext_if:0 port 21443 -> 10.69.69.21 port 443
# ssh to freezer
rdr pass on $ext_if proto tcp from any to $ext_if:0 port 26921 -> 10.69.69.21 port 22
# bittorrent to freezer
rdr pass on $ext_if proto {tcp udp} from any to $ext_if:0 port 6881:6899 -> 10.69.69.21 port 6881:6899
rdr pass on $ext_if proto udp from any to $ext_if:0 port 4444 -> 10.69.69.21 port 4444

# ssh to voyeuristic
rdr pass on $ext_if proto tcp from any to $ext_if:0 port 26922 -> 10.69.69.22 port 22
# gnutella to voyeuristic
rdr pass on $ext_if proto {tcp udp} from any to $ext_if:0 port 3897 -> 10.69.69.22 port 3897


# Filtering: the implicit first two rules are
#pass in all
#pass out all

# block all incoming packets but allow ssh, pass all outgoing tcp and udp
# connections and keep state, logging blocked packets.
#
block log all
pass quick on $int_if all

# allow all outbound, statefully
pass out on $ext_if all

# ping & traceroute
icmp_types="{ 3 8 11 }"
pass in on $ext_if inet proto icmp icmp-type $icmp_types
pass in on $ext_if proto udp from any to any port 33434:33625

# munin-node
pass in on $ext_if proto tcp from WWW.XXX.YYY.ZZZ to ($ext_if) port 4949

# ssh, http, https to transexual
pass in on $ext_if proto tcp from any to 10.69.69.30 port { 22 80 443 }

# everything to xiombarg for now
pass in on $ext_if from any to 10.69.69.60