Just trying (via a command line call on my Win7 Pro PC) to resolve IP addresses to names for non-Windows clients on the network that have been assigned names on a DHCP server on a Windows 2003R2 box. It's easy enough for Windows clients; ping -a IPaddress, but for non-Windows clients that doesn't work. I've looked (and tried) most of the netsh dhcp calls I can find, but nothing seems to pop out. Any suggestions?

Might try nbtstat -a xxx.xxx.xxx.xxx Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Sorry, meant to say I tried that and it didn't work.

Should be nbtstat -A IPaddress, but still doesn't work. . .

Hi, Thank you for the post. I understand you want to find the DHCP client device name which show none Name in DHCP console--address lease. To find the device name, you could find the their name by MAC address in switches MAC tables. To security your DHCP service, you could set 802.1x on switches ports or set up DHCP with MAC address filtering. http://technet.microsoft.com/en-us/library/dd759190.aspx http://blogs.technet.com/b/teamdhcp/archive/2007/10/03/dhcp-server-callout-dll-for-mac-address-based-filtering.aspx If there are more inquiries on this issue, please feel free to let us know. RegardsRick Tan TechNet Community Support

Hi, Thank you for the post. I understand you want to find the DHCP client device name which show none Name in DHCP console--address lease. To find the device name, you could find the their name by MAC address in switches MAC tables. To security your DHCP service, you could set 802.1x on switches ports or set up DHCP with MAC address filtering. http://technet.microsoft.com/en-us/library/dd759190.aspx http://blogs.technet.com/b/teamdhcp/archive/2007/10/03/dhcp-server-callout-dll-for-mac-address-based-filtering.aspx If there are more inquiries on this issue, please feel free to let us know. RegardsRick Tan TechNet Community Support

The names show up in the DHCP GUI client, but not when you make any command-line calls that I know of. Is there any way I can find out these names using a command-line client?

Hi, As you have already known the hostname, why you need to know it by command line? NetBios/WINS (nbtstat) and DNS (nslookup) name resolution should not work in your scenario. Anyway, you could add them into local host file and run "ping -a IPaddress" to resolve the hostname. RegardsRick Tan TechNet Community Support