Use add bridge sapFilter to add SAP (Service Advertising Protocol) filters and to define their range. SAP output filters are applied prior to the device sending information out from a specific interface. SAP filters can be entered either as a range of eTypes or as a singular eType. SAP filters allow the device to look at the sapType of the information and determine whether or not to accept information about a service. Typical services are IP, Novell, and x.25.