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#
# Basic Chillispot PF Config
# A tweak of Example 1 from the PF FAQ
# http://www.openbsd.org/faq/pf/example1.html
# By Venture37
# venture37@geeklan.co.uk
# http://www.geeklan.co.uk
# macros
int_if = "ral0"
ext_if = "fxp0"
chilli_if = "tun0"
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 }"
# options
set block-policy return
set loginterface $ext_if
# scrub
scrub in all
# nat/rdr
nat on $ext_if from $chilli_if:network to any -> ($ext_if)
# 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
block drop on $int_if all
pass in on $ext_if inet proto tcp from any to ($ext_if) \
port $tcp_services flags S/SA keep state
pass in inet proto icmp all icmp-type $icmp_types keep state
pass in on $chilli_if from $chilli_if:network to any keep state
pass out on $chilli_if from any to $chilli_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
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