VBrick Systems VB4000 SAP for Destination 1 and/or, following string IPMask=xxx.xxx.xxx.xxx where

		MPEG-2 Configuration
Category		An encoder can have a SAP Category string. This string consists of
		one or more keywords separated by spaces. Each category keyword
		represents a tag associated with the Encoder's video stream.
		Decoders can be configured to display in their Program and Guides
		only video streams tagged by specific category keywords or those
		containing no keyword. The string(s), used by the Decoder, is set on
		the Decoder/Network screen. Note: Characters are ASCII and are
		case sensitive. The total of all keywords in the string is 36 characters
		including spaces.
		You can also use this field to filter the live streams shown in the
		ETV Portal Server by source and client IP address by using the
		following string: IPMask=xxx.xxx.xxx.xxx where xxx.xxx.xxx.xxx
		represents a bit mask. (This string is simply another keyword you
		can use in addition to those described above.) The Portal Server will
		parse the bitmask and send the live stream only to clients with a
		masked IP address that matches the masked IP address of the
		source VBrick. For example, a stream with a category
		IPMask=255.255.0.0 from a VBrick with an address of 172.22.6.67
		will be available to a client with an IP address 172.22.3.4 but not to
		a client with an IP Address 172.16.3.4. There is no admin interface
		to this feature on the Portal Server; you can use this filtering in
		addition to the standard authorization features provided by the
		Portal Server.
Session Information		A string identifying VBrick SAP Session Information. See Program
		Name field for a description of replace characters (\h, \b or \f).
		Appears on Program Guide. Default is "VBrick Streaming Video".
Information URL		Informational text.
Contact Email		Informational text.
Contact Phone		Informational text.
Contact Name		Informational text.
SAP for Destination 1 and/or 2
Transmit	Enables or disables the transmission of the SAP.
Retransmit Time	If SAP Timing is fixed, this is the time (in seconds) between
	transmissions of SAPs (1 – 9999). If SAP Timing is variable, the actual
	retransmit time as per RFC 2974 is reported back. Please refer to
	Configuration: System > General.
Time to Live	The number of hops (between routers) for which an IP packet is valid
	on the network.
Type of Service	The TOS (Type of Service) can be configured in the IP header to
	establish SAP packet priority in the network.
SAP IP Address	The receive IP address used to populate the Program Guide. This is
	typically set to the Announce Program Guide SAP of the encoder.

VBrick MPEG-2 Appliance Admin Guide 35