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information from Windows dhcp

Posted on 2010-11-18
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Last Modified: 2012-05-10
I need to fetch the current leases from a Windows dhcp server by a script. Or is a kind of dhcp query possible?
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Question by:GeologyETH
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7 Comments
 
LVL 27

Expert Comment

by:KenMcF
ID: 34164307
You can use netsh dhcp server

netsh dhcp server dump

netsh dhcp server show all

then parse the output to the way you want.
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LVL 59

Expert Comment

by:Darius Ghassem
ID: 34164317
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LVL 6

Expert Comment

by:ipajones
ID: 34164335
Try this in your script:

netsh dhcp server \\dhcpservername show scope scope_name show clients

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LVL 7

Expert Comment

by:Dusan_Bajic
ID: 34164876
What ipajones suggested will work, but if you have more than one scope you can run this as a .bat and get them all at once:

For /F "skip=5 delims= " %%a IN ('netsh dhcp server \\dhcpservername show scope') DO (
      if not %%a == Total (if not %%a == Command netsh dhcp server \\dhcpservername scope %%a show clients >> leases.txt)
)
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Author Comment

by:GeologyETH
ID: 34166660
Thanks for the answers. I tried "netsh server \\<server> scope x.y.z.c show clients", but this cmd doesn't include the client's name. I need the couple client's name + ip-no.
I modified the script dhcpcheckerv2.2 tow actual situation; it runs, but doesn't mail a result. Not sure what's wrong.
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Author Comment

by:GeologyETH
ID: 34173401
The scripts works, but doesn't deliver the client's name + ip-no. Any other idea?
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Accepted Solution

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Dusan_Bajic earned 2000 total points
ID: 34173491
just add option 1 at the end
...... show clients 1 >> leases.txt)
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