labviwe 7 and firewall problem

[dlee27]

Hi,

I just installed Labview 7 express. Somehow, Labview wants to access different ports everytime I starts the program. It makes me impossible to configure firewall settings. Some of them are port 1025, 2900, 2914, 2930, and 2958.
Is there a way to restrict the Labview to access designated port?
Thank you.

[Rudi_N]

dlee:

It will greatly help me if you could post a screenshot of what happens when LabVIEW tries to open the ports on your computer. Does this happen everytime you start LabVIEW ?

Thanks,

Rudi N.

[dlee27]

Thanks, Rudi. Here goes some details.

It's just windows firewall coming up. I don't know if it's goint to help you but I'm attaching the message.
Basically, all of ports are blocked except some of them that we use here. But, I can ask our network administrator to open a couple of ports depending on the needs. I used fport program to see what port Labview wants to use and it keeps changing everytime I start the Labview. So, even if I open one port this time Labview will use different port next time and I get firewall warning everytime I start the program. It seems that it's totally random.

Thank you.

[Rudi_N]

dlee:

Thank you very much for providing me with more information about your issue. I found a list of ports that National Instruments needs to operate properly. However, none of the ports that you listed in your earlier post were on that list. I also found out that the underlying foundation for NI networking is called Logos. The Shared Variable uses the National Instruments Publish-Subscribe-Protocol (NI-PSP), which is built upon Logos. Similarly, communications between remote machines and between software and databases is based on Logos in Lookout 6.0.x and LabVIEW DSC 7.x and greater. Depending on your Logos version, UDP Ports for communication are assigned randomly in a range from 1024 up to the maximum of 65535. This could explain why you keep seeing that LabVIEW tries to access random ports every single time. I would recommend to find out what version of NI Logos you have so that we can explain this further. If you have NI Logos 4.5 and previous, you may have to upgrade to a later version so that ports will be assigned incrementally rather than randomly. 
I hope this helps and please do not hesitate to contact me if I can be of any help.

Regards,
Rudi N.