Hello Alciregi,
I need it to be remotely connected to the LAB network of my company. With that I can be “inside” the network and be able to reach all the network devices. Also, because I have the .pcf file for the authentication and policies of my company.
Well, I spend all night researching and I was able to install the Shrew Soft VPN client in my machine Fedora 31. The tricky part is that Fedora 31 doesn’t come with the “iked”.
$ sudo dnf copr enable pessoft/ike
$ sudo dnf -y install ‘dnf-command(copr)’ dnf -y copr enable pessoft/ike dnf -y install ike
$ sudo dnf -y install ike
afterwards, $ tar xzvf ike-2.2.1-release.tgz
And then search for the folder /home/bodhi/Documents/ShrewSoft_vpn-client_2.2.1/ike/script/linux/
In this folder there is a file named iked. You have to execute the file as root: $ sudo iked
This will install the application in the GNOME environment: Shrew Soft VPN Access Manager. The configuration will depend on the credentials of each person.
Was a long night but it was successful 
Cheers, Rodrigo