Install dhcp-probe by entering the following commands in the terminal:
sudo apt update sudo apt install dhcp-probe
Description:
network DHCP or BootP server discover
dhcp_probe attempts to discover DHCP and BootP servers on a directly-attached Ethernet network. A network administrator can use this tool to locate un- authorized DHCP and BootP servers. Essentially, dhcp_probe mimics a BootP or DHCP client in a variety of possible states, attempting to provoke responses from servers.
Homepage: http://www.net.princeton.edu/software/dhcp_probe/
Version: 1.3.0-10.1build1
Section: universe/net