Vicks EDG-4508+ Manuel D’Utilisation

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Chapter 7  
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.
 
Only configure the authorized IP
 
Figure 7.6: 
This option is enabled in order to protect all configuration settings from 
being changed inadvertently.
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.