change subnet in dhcp

[northeast_technician]

hello, is there a way of changing the subnet of a dhcp scope without deleting and re adding it? someone has put the wrong subnet into dhcp and now i need to change it quick!

[smithson83]

Apparently not, BUT, there is hope... Link

 

you can run

netsh dhcp server \\”Server” scope “ip_of_scope” dump>c:\dhcp.txt

to export your dhcp data to a text file, (delete the scope), change the subnet in the txt file then run

netsh exec c:\dhcp.txt

to recreate it.

 

or so say MS

Edited March 24, 2016 by smithson83

[northeast_technician]

Yeah saw that didn't bring me much luck said it was an invalid ip I used even though it was the server

[smithson83]

the "IP_of_scope" will be the start of the IP range eg 192.168.0.0, not the server address

 

netsh dhcp server \\NameOfDHCPServer scope 192.168.0.0 dump>c:\dhcp.txt

Edited March 24, 2016 by smithson83