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#
# block all inbound packets.
#
block in from any to any
#
# pass through packets to and from localhost.
#
pass in from 127.0.0.1/32 to 127.0.0.1/32
#
# allow a variety of individual hosts to send any type of IP packet to any
# other host.
#
pass in from 10.1.3.1/32 to any
pass in from 10.1.3.2/32 to any
pass in from 10.1.3.3/32 to any
pass in from 10.1.3.4/32 to any
pass in from 10.1.3.5/32 to any
pass in from 10.1.0.13/32 to any
pass in from 10.1.1.1/32 to any
pass in from 10.1.2.1/32 to any
#
#
# block all outbound packets.
#
block out from any to any
#
# allow any packets destined for localhost out.
#
pass out from any to 127.0.0.1/32
#
# allow any host to send any IP packet out to a limited number of hosts.
#
pass out from any to 10.1.3.1/32
pass out from any to 10.1.3.2/32
pass out from any to 10.1.3.3/32
pass out from any to 10.1.3.4/32
pass out from any to 10.1.3.5/32
pass out from any to 10.1.0.13/32
pass out from any to 10.1.1.1/32
pass out from any to 10.1.2.1/32