On Mon, Dec 25, 2017 at 08:25:52PM -0600, Paul Johnson wrote: > On Mon, Dec 25, 2017 at 10:49 AM, Marc Auslander <marcsli...@gmail.com> > wrote: > > > The safest way to fix an ip address in a dhcp served network is to tell > > the dhcp server to associate that address with the mac of the unit. The > > address should be outside the dhcp range you set up. I normall pin down > > all my connected devices that way, leaving the dhcp assignment for > > guests etc. I've never seen a router which didn't support this. > > > > > Or, just tell the DHCP server that you want a specific MAC address to > always be assigned to a specific IP address. It doesn't matter if it's in > or out of the assignment range, then, or whether or not the unit in > question understands DHCP or is configured manually on it's end; the DHCP > server will not assign another client to that IP. Though for ease of > dealing with static assignments, I personally find it much simpler to do it > all at the DHCP server end only if the client end speaks DHCP, just in the > off chance I need to change the network configuration later.
Sample dhcpd config for a static IP assignment: host thatonemachine { hardware ethernet d0:ee:fb:13:5e:a6; fixed-address 192.168.0.64; } You can read the ethernet MAC address on the machine in question with ip l | grep ether -dsr-