Poco testato ma in prova da un cliente:
# mkdir -p /etc/e-smith/templates-custom/etc/rc.d/init.d/masq
# cp -a /etc/e-smith/templates/etc/rc.d/init.d/masq/40AllowLocal
/etc/e-smith/templates-custom/etc/rc.d/init.d/masq/40AllowLocal
# patch /etc/e-smith/templates-custom/etc/rc.d/init.d/masq/40AllowLocal
< blocco_traffico.patch
# expand-template /etc/rc.d/init.d/masq
# service masq restart