I have a laptop. When I bring it into our office it dynamically gets an address from our DHCP Server. I can't set the IP address on the laptop to static, since the laptop goes home onto another network. I want to get the same IP address every time when I get into the office so that I can have port forwarding to that same IP. However, my DHCP server does not allow reservations. Is there any way to make sure I get the same IP address every time?