Script for dumping DHCP subnet scope options

Fri, 16 Nov 2012 15:12:41 +0000

Here’s simple script I’ve put together as I was in need of one that dumps the DHCP subnet scope options into a text file.

The script first queries the DHCP servers it can find and then dumps the scope options of each subnet it finds on each DHCP server.

Copy the code below and save it as dhcpsubnetscopeoptions.cmd.

@echo off
echo %date% %time% >%~dp0\dhcpsubnetscopeoptions.txt
echo ----------------------------------------------------------------- >>%~dp0\dhcpscopeoptions.txt
echo Dumping DHCP Subnet Scope options
for /f "skip=2 tokens=4 delims=[] " %%G in ('netsh.exe dhcp show server') DO (call :sub1 %%G)
:sub1
set srv=%1
for /f "skip=4 tokens=1 delims= " %%a in ('netsh.exe dhcp server %srv% show scope') DO (
 IF "%%a" == "Total" (echo.) ELSE IF "%%a" == "Command" (echo.) ELSE (
 netsh dhcp server %srv% scope %%a show optionvalue >>%~dp0\dhcpsubnetscopeoptions.txt
 )
)

Note that you must have appropriate rights such as DHCP Users, DHCP Administrators, or Domain Admin to retrieve the information. The output is saved into a file called dhcpsubnetoptions.txt.

Scope-Options on Anything About IT

Script for dumping DHCP subnet scope options