Not sure what would be illegal on e.g. restarting your machine. This will require DHCP server to issue a new lease. Also using DHCP doesn't necessarily mean dynamic IP address. > > I've been trying to force DHCP renewal before the lease time expires > > I am not sure but is this not illegal to try on a commercial provider's > DHCP server. Will they not sue us if we try to hijack the expiry of the > lease period of their allotted Dynamic IPs ?? What gives ? >