ssh installed but I get the error: Failed to start ssh.service: Unit ssh.service not found

I have ssh and openconnect installed but when I proceed to start or stop the ssh service, I get the following error: > Failed to start ssh.service: Unit ssh.service not found. Also, when I try sudo apt-get install ssh I get the following: sudo apt-get install ssh Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: ncurses-term openssh-server openssh-sftp-server ssh-import-id Suggested packages: ssh-askpass rssh molly-guard monkeysphere The following NEW packages will be installed: ncurses-term openssh-server openssh-sftp-server ssh ssh-import-id 0 upgraded, 5 newly installed, 0 to remove and 193 not upgraded. Need to get 640 kB of archives. After this operation, 5.237 kB of additional disk space will be used. Do you want to continue? [Y/n] Which I find confusing. If I do which ssh, I get: /usr/bin/ssh How can the binary be there if apt-get thinks the package is not installed? Also, when calling ssh , I get the following error: > ssh: connect to host port 22: No route to host But if I use openconnect and connect to a VPN, ssh work without problems. What am I missing? I'm running Ubuntu 16.04.