El siguiente ejemplo presenta como puede configurarse un servidor NAT para controlar ancho de banda de diversos computadores de la red interna. La conexión de la red interna es a 100MB, mientras que la conexión a Internet es de 300KB. De todos los computadores de la red interna el ancho de banda se limita sólo a 4 computadores, cada uno máximo 30KB. Los demás comparten el resto del ancho de banda.

table <interna> {192.168.2.2, 192.168.2.1, 192.168.1.1, 192.168.1.8, 192.168.1.21, 192.168.1.23, 192.168.1.30, 192.168.1.31, 192.168.1.37, 192.168.1.40, 192.168.1.41, 192.168.1.42, 192.168.1.43, 192.168.1.95, 192.168.1.70}

set loginterface $int_if
set fingerprints "/etc/pf.os"

altq on $int_if bandwidth 100Mb cbq queue { dflt_in, uext1_in, uext2_in, uext3_in, uext4_in}
altq on $ext_if bandwidth 300Kb cbq queue { dflt_out }

queue dflt_in cbq(default) bandwidth 80%
queue dflt_out cbq(default)

queue uext1_in bandwidth 30Kb
queue uext2_in bandwidth 30Kb
queue uext3_in bandwidth 30Kb
queue uext4_in bandwidth 30Kb

uext1="192.168.1.70" 
uext2="192.168.1.23" 
uext3="192.168.1.95"
uext4="192.168.1.30"

match out on $ext_if from <interna> to any nat-to ($ext_if)

pass  out on $int_if from any to $uext1 queue uext1_in
pass  out on $int_if from any to $uext2 queue uext2_in
pass  out on $int_if from any to $uext3 queue uext3_in
pass  out on $int_if from any to $uext4 queue uext4_in