You can use the very nifty command line tool, PSEXEC to dump all of the ipconfig settings into a text file! You can download PSTOOLS (Including PSEXEC) here.

To do this, open up the command prompt by clicking "Start" then searching for "cmd."The command prompt icon will show as "cmd." Right-click it and run as administrator.In the command prompt, type in the following command...
"psexec \\* ipconfig /all > c:/output.txt"

PSEXEC will display a message telling you that it is enumerating the domain. This may take a while!

Once it has finished, a text file called output.txt will appear on the root of the C drive containing the ipconfig settings of every windows machine on the domain.