a3filterUserMaskLocType 1.3.6.1.4.1.43.2.10.2.1.3

This object determines if this table entry specifies packet location via the mnemonic, protocol.field semantics or via the numerical offset.length semantics. If this object is set to protocolFieldSemantics (1), then the value of a3filterUserMaskLocField is used to identify the packet location where the mask is applied. If this object is set to offsetLengthSemantics(2), then the offset and lengths identified by a3filterUserMaskLocOffset and a3filterUserMaskLocLength are measured from the start of the datalink layer. If this object is set to dataLinkOffsetLengthSemantics(3), then the value of a3filterUserMaskLocOffset and a3filterUserMaskLocLength are used to determine where the mask is applied. The offset and length are measured starting from the data field of the data link protocol layer. If this object is set to ipOffsetLengthSemantics(4), then the value of a3filterUserMaskLocOffset and a3filterUserMaskLocLength are used to determine where the mask is applied. The offset and length are measured starting from the data field of the IP protocol layer. If this object is set to appleTalkOffsetLengthSemantics(5), then the value of a3filterUserMaskLocOffset and a3filterUserMaskLocLength are used to determine where the mask is applied. The offset and length are measured starting from the data field of the AppleTalk protocol layer. Similar semantics apply to the remaining enumerations for this object.