I just realized that we are still running Microsoft DHCP at a remote location. I looked. Under the scope properties, there is a section "Lease duration for DHCP clients". There is a radio button for "Unlimited". That sounds like it will give you what you want.
As Jonathan Link points out, you could also dump your leases to a file, use perl, VBscript, batch, etc to extract the IP addresses and MAC address, then build netsh commands to delete the lease, then add the reservation. From: Ken Cornetet [mailto:[email protected]] Sent: Wednesday, October 14, 2009 3:12 PM To: NT System Admin Issues Subject: RE: dhcp reservations What is the maximum lease time on MS DHCP server? Could you just crank it WAY up? From: Benjamin Zachary - Lists [mailto:[email protected]] Sent: Wednesday, October 14, 2009 3:02 PM To: NT System Admin Issues Subject: dhcp reservations Anyone know of an easy way to convert dhcp to dhcp w/reservations? We have a 450 user network with all dhcp but need them to not change for some new software. I was hoping I could just right click on the current dhcp lease and convert it to a reservation but no such luck :0 Id rather not have to input 450 mac addresses. Im tinkering with netsh dhcp server to see if anything looks possible but so far nothing good. Thanks ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
