discover UDP Discover Daemon

This example exercises netutils/discover utility. This example initializes and starts the UDP discover daemon. This daemon is useful for discovering devices in local networks, especially with DHCP configured devices. It listens for UDP broadcasts which also can include a device class so that groups of devices can be discovered. It is also possible to address all classes with a kind of broadcast discover.

This example will automatically be built as an NSH built-in if CONFIG_NSH_BUILTIN_APPS is selected. Otherwise, it will be a standalone program with entry point discover_main.

NuttX configuration settings:

• CONFIG_EXAMPLES_DISCOVER_DHCPC – DHCP Client.

• CONFIG_EXAMPLES_DISCOVER_NOMAC – Use canned MAC address.

• CONFIG_EXAMPLES_DISCOVER_IPADDR – Target IP address.

• CONFIG_EXAMPLES_DISCOVER_DRIPADDR – Router IP address.

• CONFIG_EXAMPLES_DISCOVER_NETMASK – Network Mask.