I am in a Networking course, the course employs a Cisco packet tracer to practice  before the real implementation, but I  only use GNU/Linux (Debian Squeeze) and I need to configure a next network like this one:pc_1 <----> hub_1 <------> router_1 \                                     \                                      \ Cloud(frame relay)                                      /                                     /                                    /pc_2 <----> hub_2 <------> router_2My searches reveal little about frame relay in GNU/Linux. Any idea?
How to configure a Frame Relay in Unix/Linux?
linux;networking;gnu