Using an IP address of 0.0.0.0

[philbilly]

I am attempting to move an application from Windows 7 to Windows 10. I have a requirement that my system has an IP address of 0.0.0.0 upon power up and requests an IP address.  I was able to do this under Windows 7 using an open source network routine Nmap.  Under Windows, 10 the request never appears on the target, as if the windows 10 OS prevents its transmission.

[Bob_Schor]

I wonder if your system is trying to use DHCP to request an IP from a DHCP server.  Do you know (when your Windows 7 kludge got you an IP) if the IP was of the form 169.254.x.x?  If so, it suggests you (were) trying to contact a DHCP server, none was found, so you were assigned an Automatic Private IP Address.  Is this your Primary Ethernet port, or a second port?

Bob Schor

[altenbach]

Your post contains too little (and too confusing) information to really help.

So your system seems to be configured to automatically obtain an IP address from a DHCP server. I am assuming that by your "system", you mean the windows computer. (Or is your "system" an embedded device you are trying to communicate with?)

Nmap is primarily a network scanner, not a tool to assign IP addresses. Can you clarify what you are actually doing? 

• Define what you mean by "system"
• Define what you mean by "target"
• Define what you mean by "transmission"
• What else is on that network (dhcp server, etc.)
• etc.

Maybe you can draw a diagram of your setup. Could it be a firewall issue?

[OscarColBa]

I will continue this thread because I think that I'm facing same situation. The situation is that I restarted the IP configuration of my cRIO 9012, so now the device has the default IP = 0.0.0.0 this mean that is not longer accesible from my Windows laptop due to I can`t configure my network to that IP range. ¿HOW SHOULD I PROCEED TO CHANGE THE IP?

[cbutcher]

It's likely that if you open MAX and search for remote devices, it will appear with a Link Local IP address of the type that Bob Schor mentioned previously.

I haven't checked recently but from memory I believe IP addresses are taken in the order of static config, DHCP allocated, then Link Local (169.254.x.y).

If you have a DHCP server running on the network, your cRIO may have been allocated a different IP, in which case you can probably still find it using MAX, or you could look up the DHCP pool via the server (if you have access to it).

[Bob_Schor]

The Manual for this cRIO discusses setting it up, including a section on "Configuring DIP Switches" and "IP RESET Switch --Push the IP RESET switch to the ON position and reboot the controller to reset the IP address and other TCP/IP settings of the controller to the factory defaults. Refer to the Troubleshooting Network Communication section for more information about resetting the IP address. You also can push this switch to the ON position to unlock a chassis that was previously locked in MAX" (that's a "cut-and-paste" from Page 10 of the on-line manual).

Bob Schor