MEGAPOWER CPU 8200-0421-03, REV. G
ADMINISTRATOR’S GUIDE
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APPENDIX D: Port Number Assignments
The MegaPower CPU IP port source and destination port numbers must be programmed; otherwise,
communication with external devices will not occur.
Purpose Protocol
MPCPU
Port
PC
Port
Description
Activity
Logging
(1)
TCP
(3)
514 Any Used as a server to listen for requests asking to initiate
activity logging. These requests are normally sent from the
activity logging client. Once a request is received and the
connection is established, the port is used as the source for
sending the activity logging data.
EASY CPU
(1)
UDP
(4)
4001 Any Used to communicate (to the EASY CPU or any other such
program) all available status or information data. This port
works as a server where each received request produces
one or more replies to the requesting client (usually to the
EASY CPU).
Snapshot
(1)
UDP
(4)
Any 69 Used for sending JPEG images taken from a camera. Uses
TFTP (Trivial File Transfer Protocol) for image transfer.
Setting Time/
Firmware
Upgrade
(1)
UDP
(4)
69 Any Used to set or retrieve MPCPU calendar time. Uses TFTP
(Trivial File Transfer Protocol) for the calendar time data
transfer.
NTP
(2)
UDP
(4)
123 123 NTP (Network Time Protocol) provides time synch between
the MPCPU and network systems.
Alarm Email
(2)
TCP
(3)
Any 25 This port of the server to which the MPCPU sends Email
messages in response to an alarm.
IP Address
Assignment
(2)
UDP
(4)
68 67 Port 68 (source) assigns the IP address and is used for
DHCP when enabled. Port 67 Bootstrap Protocol Server
(destination) is the listening port on boot and DHCP
servers. Clients broadcast to this port for boot or network
parameters.
Notes:
(1)
MPCPU specific
(2)
Network specified
(3)
TCP (Transmission Control Protocol)
(4)
UDP (User Datagram Protocol).
