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7-31
• Bitmap Set - 8-bit bitmap.
Bit 7: TCP Enable
A value of 0 means DNP over TCP listening point disabled.
A value of 1 means DNP over TCP listening point enabled.
Bit 6: UDP Enable
A value of 0 means DNP over UDP end point disabled.
A value of 1 means DNP over UDP end point enabled.
Bit 5: Validate Client Point
A value of 0 means No validation and any port is accepted.
A value of 1 means Validate connections against the first 1-4 entries.
Bit 4: UDP Response Behavior
A value of 0 means Respond to Client Port.
A value of 1 means Respond to programmed UDP respond port.
Bit 3 to Bit 0: Reserved
• UDP Addressing - 1 byte unsigned integer.
• Validate Connection Count - 1 byte unsigned integer.
• TCP Listen Port - Two byte unsigned integer. TCP listening port.
• UDP Listen Port - Two byte unsigned integer. UDP listening port.
• Valid IP Address 1,2,3,4 - Four 4 byte IP address. Each byte is 1 unsigned integer. These are
IP addresses for validating TCP connections and UDP datagrams.
• Valid IP Subnet Mask 1,2,3,4 - Four 4 byte IP address. Each byte is unsigned integer. These
are IP subnet masks for validating TCP connections and UDP datagrams.
• TCP Starting Valid Client Ports - Four 2 byte unsigned integers. These are Starting Client
ports for validating TCP connections.
DNP LAN/WAN Bitmap
76543210
DescriptionIndex
1 Unicast Addressing Only
2 Broadcast Only
3 (0, 4-255) Unicast and Broadcast
Index Description
0, (5-255) No validation, any connection is accepted
1-4 Validate connections against the first 1-4 entries