Ola! Baixei o instalador .deb direto do site como foi mostrado no link https://cursos.alura.com.br/course/redes-introducao/task/20470 porem ao tentar instalar deu o seguinte erro:
sudo dpkg -i PacketTracer_731_amd64.deb(Reading database ... 189388 files and directories currently installed.) Preparing to unpack PacketTracer_731_amd64.deb ... Unpacking packettracer (7.3.1) ... dpkg: dependency problems prevent configuration of packettracer: packettracer depends on dialog; however: Package dialog is not configured yet. packettracer depends on libgl1-mesa-glx; however: Package libgl1-mesa-glx:amd64 is not configured yet.
dpkg: error processing package packettracer (--install): dependency problems - leaving unconfigured Processing triggers for desktop-file-utils (0.24-1ubuntu3) ... Processing triggers for gnome-menus (3.36.0-1ubuntu1) ... Processing triggers for mime-support (3.64ubuntu1) ... Processing triggers for shared-mime-info (1.15-1) ... Errors were encountered while processing: packettracer