Guessnet is a non-aggressive network detection tool to use when moving a machine among networks which don't necessarily provide DHCP.

Guessnet takes in input a list of candidate network profiles, each of which includes a test description; then it runs all the tests in parallel and prints the name of the profile whose test was the first one to succeed.

Available tests are: * ARP probes to check for known hosts in the network * link beat check, to check if the interface is connected to anything * PPPOE check to see if there is a concentrator accessible via PPPOE * Checks provided by custom arbitrary scripts.

Guessnet can be used in either native mode or "ifupdown mode". In the latter case guessnet integrates nicely with ifupdown as a "mapping script".