How to reassign a static IP address with dnsmasq

This post is a revised version of link.

The following steps should be followed:

Edit the file /etc/dnsmasq.conf on your router, and update the mac address associated with the intended ip address.
```
dhcp-host=<mac address>,<ip address>
```
Stop dnsmasq service
```
sudo systemctl stop dnsmasq.service
```
Next shutdown networking on the new client machine or the command dhclient -v -r might get the job done. Be aware, that this step will make the client lose the connection.
On the router, edit the file /var/lib/misc/dnsmasq.leases, and delete the pre-existing lease for the client machine.
Start dnsmasq service on the router,
```
sudo systemctl start dnsmasq.service
```
Start networking on the client machine or sudo dhclient.