History

Priority

must

2010

When selecting a traffic flow filter, agencies must use at least one of the following in the order of preferenceas shown:• a firewall• a proxy• a router with appropriate access control lists configured.

2008

When selecting a traffic flow filter, agencies should use one or more of the following, in the order of preference as shown: a. a firewall b. a proxy or c. a router with appropriate access control lists configured.