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Part 1 – AT Commands for All Universal IP Devices Chapter 6 – UDP AT Commands
Universal IP AT Commands Reference Guide (Document S000457K) 46
#LUDPSTOP – Close UDP Listening Mode
Description: This command directs the TCP/IP stack to close a UDP listening mode session previously
launched by the AT#UDPSTART command.
Syntax: AT#LUDPSTOP
Values: UDPPORT (No default)
#OUTPORT – UDP/TCP Local Port Number
Description: Controls the local port that the UDP/TCP connection is bound to.
Syntax: SAT#OUTPORT=<Port Number value>
AT#OUTPORT? Read or display the current setting.(or AT#VALL).
Values: Set the port number local connection will use:
From 1 to 5 numeric digits (0 to 9).
Note: Numbers above 65,535 are illegal since port identification fields are 16-bits long in the
IDP header.
Default: 37500
#OUDP – Initiate UDP Session in Active Mode
Description: Once an IP link is established, and if no other TCP/IP stack resource is active, this command sent
by the attached host directs the TCP/IP stack to initiate an UDP session in active mode on the
specified UDP remote port UDPPORT to the specified remote IP address UDPSERV.
The host can then transmit to the UDPPORT or UDPSERV address. Datagrams can only be
received from this UDPPORT or UDPSERV address.
Syntax: AT#UDPOPEN
Values: UDPPORT
UDPSERV
UDPTXDELAY
No default
Display Command
#VUDP – Display UDP Module Configuration
Description: Directs the TCP/IP stack to display all the AT# parameters related to the UDP socket
configuration.
Syntax: AT#VUDP
Values: UDPPORT
UDPSERV
UDPTXDELAY
No default.