Vicks EDG-4516+, EDG-4508+ user manual TCP Port number, Only configure the authorized IP

TCP Port number

Figure 7.5:

The TCP port number represents the source port number in TCP connec- tions, and is the number used to identify the channel for remote initiating connections. Range: 1-65535.

If an unknown caller wants to connect to the system and asks for some services, they need to define the TCP port to carry a long-term conversa- tion.

Each node on a TCP/IP network has an IP address, and each IP address can allow connections on one or more TCP port. The well-known TCP port are those that have been defined; for example, port 23 is used for Tel- net connections. There are also custom sockets that users and developers define for their specific needs. The default TCP port of EDG-4508+U/ 4516+U is 5200. Opening a TCP session to port 5200 will form a raw TCP/IP connection to the serial port.

Note	1: If the serial port is in use, the socket
	connection will be refused.
	2: Timing between serial signals (such as DSR,
	RTS, and DCD) is not preserved, and the state
	of such signals is not readable.

Only configure the authorized IP

Figure 7.6:

This option is enabled in order to protect all configuration settings from being changed inadvertently.

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