38
---------------------------------------------------------------------------
serial configuration -->port#1 --> TCP/IP
---------------------------------------------------------------------------
Select menu
1. Host mode : TCP Server & client
2. Local port : 6000
3. Destination IP & port : 192.168.1.200:6001
4. Cyclic connection : 10 Min
<ESC> Back, <ENTER> Refresh
----->
Figure 4-10. Set up parameters for TCP server/client mode
4.1.5 UDP tunneling mode operations
The UDP tunneling mode operation is similar to that of
TCP server/client
mode except that it is based
on UDP protocol and only one pre-defined remote host is able to communicate with the HelloDevice
Pro Series. Users do not have to configure the parameter of
inactivity timeout,
since UDP is a
connectionless protocol.
1) Operations
If a remote host sends a UDP datagram to the UDP
Local port
of the HelloDevice Pro Series, it checks
if the IP address of the host is the same as the pre-defined
Destination IP
address. If the IP addresses
are the same, the HelloDevice Pro Series transfers the data through the serial port. Otherwise, the
HelloDevice Pro Series discards the incoming UDP datagram.
If there is any incoming data from the serial port, the HelloDevice Pro Series transfers the data to the
remote host defined as
Destination IP & Port
. Although the remote port is not open, the HelloDevice
Pro Series does not transfer the data again.
2) Parameters
Local port
The concept is the same as that of TCP communication. See
TCP Server mode operations
in
the section 4.1.2 for details.
Remote IP address (or domain name) and Remote Port
The concept is the same as that of TCP communication. See
TCP Client mode operations
in the
section 4.1.3 for details.
---------------------------------------------------------------------------
serial configuration -->port#1 --> TCP/IP
---------------------------------------------------------------------------
Select menu
1. Host mode : UDP tunneling
2. Local port : 6000
