The syntax for the use of the IPCONGIG program in Windows 2000 is:

ipconfig \[/? | /all | /release \[adapter\] | /renew \[adapter\] | /flushdns | /registerdns | /displaydns\]

where:

<b>/?</b>             Displays help.

<b>/all</b>           Displays the full configuration information.

<b>/release</b>       Releases the IP address for the specified adapter.

<b>/renew</b>         Renews the IP address for the specified adapter.

<b>/flushdns</b>      Purges the <b>DNS</b> resolver cache.

<b>/registerdns</b>   Refreshes all <b>DHCP</b> leases and re-register <b>DNS</b> names.

<b>/displaydns</b>    Displays the contents of the <b>DNS</b> resolver cache.
The DNS related switches are new for Windows 2000.