Using DHCP with a cFP-20XX across a different subnet

[selmore]

I have a cFP-2010 that will work great when set up with a static IP or DHCP as long as it is on the same subnet. If I set it for DHCP then move it to a different subnet, MAX can no longer find it. Do I have to use a static IP when going across subnets, or is there something I'm missing?

Thanks,

Steve

[Khalid]

Hi Steve,

You cannot browse across subnets.  See Aaron's answer in this thread for further details:

http://forums.ni.com/ni/board/message?board.id=110&message.id=207

-Khalid

[Matthew_Williams]

You should be able to connect by entering the IP directly, not browsing.

Matt

Message Edited by Matthew Williams on 01-09-2006 02:30 PM

[selmore]

As I understand from these replies and other threads I've found is that I can only communicate (MAX, DSC, etc.) across subnets if I know the IP address; i.e., I can use DHCP, but I still have to manually enter the IP address every time it changes, so DHCP is basically useless.

Steve

[JMota]

Selmore,

Not 100% sure this will work for FieldPoint controllers, but for some other NI controllers (e.g. CompactRIO) if you give a name to the controller in MAX and set it to use DHCP, then when its IP address is assigned by the DHCP server its name is registered as a DNS name. That means you can use that name to communicate to it from a different subnet. By using ping commands you should be able to demonstrate if this works for FieldPoint or not; I believe it should.

Hope my answer is clear enough and helps.

JMota