I have DHCP Server and we have almost 200 client PCs. I have one question regarding DHCP. we created scope for DHCP and given all the necessary IP address rang etc. My question is one of my client computer is connected with 192.168.1.15 and I want to assign this IP address to someone else. I dont have any physical access to that client PC to shutdown or change the IP address. Do we have any way to take it out that IP address from client PC by forcing????? Thanks

No way of forcing it, you must wait until the lease has expired on the machine so the client will re-request a new lease/ address from the DHCP or if the client machine is turned off or loses its lease by some other means. If the machine is managed you would be able to do this remotely but it sounds like the machine is not? Maybe reduce your lease time to much less so any changes to the DHCP / ips will be picked up in a much shorter time. DHCP server is passive not active

hmm Ok Thanks . I was expecting the same answer because I read many forums about this question. thanks once again

here is the trick . 1) try to set the static ip address on the remote pc by using a script this way you can change ip address remotely with out having physical access http://countscomputercorner.blogspot.com/2010/03/changing-ip-address-remotely-using.html 2) free the ip address from the pool and bind the mac address on the new pc. http://www.virmansec.com/blogs/skhairuddin

Hello, exclude the address from the scope and wait until the client has released another one. Then create a reservcation for the machine that should get it or set it fixed on the client.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

if it's a domain joined PC, then you just remotely connect to a command prompt (psexec for example) and do a ipconfig /renew (assuming it's curently a DHCP client). If the IP has been reassined on the DHCP server, it just will renogiate a new IP. Even if its not domain joined, you may be able to connect to it remotely if you have account details on it.