how can I send an UDP packet via WLAN

[picipo]

How to send an UDP packet via WLAN

[tst]

I don't believe the fact that it's a WLAN, as opposed to a regular LAN, should make a difference. I know it doesn't for TCP. Just use the UDP VIs (can be found in the Communications palette).
If you don't know how to use them, click Help>>Find Examples and search for UDP. You can search for additional information on this site.

[altenbach]

tst is right, UDP uses the standart TCP/IP services. Just send the packet to the desired destination IP, the rest is automatic.

If your PC has multiple interfaces, the destination IP together with the routing tables will determine the correct interface to use.