Transmission of data via the Ad Hoc network in LabVIEW

Hello

I'm trying to transmit some data (position, speed, etc.) a laptop computer to a host computer.

The laptop and desktop have the card installed wireless so I thought this would be a good

the idea of transmitting data via Wi - Fi using TCP.

However, the problem is that there is no router/modem in the area where the laptop is sitting

so, I create a network of Ad-hoc (computer to computer) between the laptop and the desktop computer.

Then, I use "ipconfig/all" in the Windows command prompt to extract the IP as follows.

IP address wireless laptop: 169.254.165.72

IP address Wireless Desktop: 169.254.102.126

Desktop Ethernet IP address: 129.94.229.230

I then use the code example in the TCP library named 'Data Server.vi' and "Data Client.vi."

I listen on port 6340 times the wireless and ethernet desktop on the side map server.

And on the side of the customer, I opened a connection to port 6340 169.254.102.126 IP address.

However, the connection cannot be granted. Anyone know why this is the case?

Note: I have disabled all firewalls.

Interesting, when 2 computers are connected to the same modem, their IP addresses

differ only by the last number (e.g. XXX.XXX. XXX.123 vs XXX.XXX. XXX.256), but when an ad

the House of Commons network is established, their IP addresses have 2 numbers that are different. (XXX.XXX.

102,126 vs XXX. XXX.165.72) I wonder if this has nothing to do with the failure.

Thanks for all your help.

Ron Liou

I somehow this job.

What I've done

-Once again set up an Ad hoc network for the labtop and Office

-verification of the IP address is always the same

> Portable wireless IP address: 169.254.165.72

> Portable wireless subnet mask: 255.255.0.0

> Wireless Office IP address: 169.254.102.126

> Wireless Office subnet mask: 255.255.0.0

-switch on the ICS of the ethernet on the desktop card

(This resulted in an IP different addresses assigned beng)

> Portable wireless IP address: 192.168.137.21

> Portable wireless Subnet Mask: 255.255.255.0

> Wireless Office IP address: 192.168.137.1

> Office Wireless Subnet Mask: 255.255.255.0

Now I use the ip address of office (192.168.137.1) to open the connection

and it works! ??

I am very pleased with the fact that it works but I would like to have one

explanation on why it takes an ICS.

Thank you!

Tags: NI Software

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