Migrate DHCP server from Windows NT to Linux

I am running a DHCP server on Windows NT 4 which will lease out around 50 IP addresses for notebook users. I would like to migrate the server to Linux. How can I smoothly do so? Will the new Linux DHCP server be able to handle the IP addresses that are already leased out to existing users?

I assume that in worst case, I will ask all the notebook users using DHCP to shutdown their computers and then I will do the the migration and they will start up their computers again. But this is just the last resort.

 

I think you can do smoothly, just allocate a range contiguous to the one that manages the NT to avoid conflicts, i.e.

WinNT: 192.168.1.20 - 192.168.1.69
Linux: 192.168.1.70 - 192.168.80

When the WinNT is down you can resize IP range of Linux server to 192.168.1.20 - 192.168.1.69
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CANCER - LEUKEMIA ADVICE
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Kitchen Measures

 

After the WinNT is down, when can I resize the IP range for the Linux server?
Will the Linux server knows which IP under the range 192.168.1.20 - 192.168.1.69 has been assign out by the WinNT?