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Serial Port Profiles
142 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
UDP Sockets Profile
Overview
The UDP profile configures a serial port to broadcast UDP data to systems and/or receive UDP data
from systems.
Functionality
When you configure UDP, you are setting up a range of IP addresses and the port numbers that you
will use to send serial data to the LAN (using UDP) or receive UDP data from the LAN which will be
forwarded to the serial port.
When you configure UDP for “LAN to Serial”, the following options are available:
z To receive data from a specific IP address, enter this address in the Start IP Address field and
leave the
End IP Address field at its default value (0.0.0.0). For the port, you can enter a
specific “source” port or leave as 0 to accept any source port.
z To receive data from a range of IP address, fill in the Start IP Address field with the low IP
address for the range and the
End IP Address field with the high IP address for the range.
z To receive data from any IP address and any UDP port, leave the Start IP Address field, the End
IP Address
field and the Port field at its default value of 0. The IP address on the first UDP
message received will than be the only IP address accepted from that point on. This is the “auto
learn” feature of the UDP profile.
z If the Start IP Address field is set to 255.255.255.255 and the End IP Address is left at its
default value (
0.0.0.0), the IOLAN will accept UDP packets from any source address. If you
want the IOLAN to receive data only from the first IP address is sees (auto learn the sender IP
address), leave the
Start IP Address field at its default value (0.0.0.0).
When you configure UDP for “Serial to LAN”, the following options are available:
z To send data to a specific IP address, enter this address in the Start IP Address field and leave
the
End IP Address field at its default value (0.0.0.0).
z To send data to a range of IP address, fill in the Start IP Address field with the low IP address
for the range and the
End IP Address field with the high IP address for the range. A separate
UDP message with the same serial data will be sent to each host in the configured range.