frr-cli is vtysh part of frr 7.2-0 install dependency deb libyang: https://github.com/CESNET/libyang.git or install release deb: sudo dpkg -i release/libyang-dev_1.0.73_amd64.deb build & install frr-cli: cd frr-cli && make && make install or install release deb: sudo dpkg -i release/libra-cli_1.0.1_amd64.deb how to use: libra-cli frr source: https://github.com/FRRouting/frr