Use Gnome-terminal with GNS3 Leave a reply GNS3 is configure to use Xterm by default. If you are on Gnome, you may want to use the Gnome terminal. The proper command to set is : gnome-terminal -t %d -e 'telnet %h %p' > /dev/null 2>&1 & Related posts: Connecting your GNS3 labs to the real network Getting colors in the terminal Practicing Cisco networking with GNS3 and Dynamips Cisco configuration buffer full