Networking

PeachCloud has three primary network interfaces: eth0, wlan0 and ap0 (virtual interface). The device supports two wireless modes: client and access point (AP).

In client mode, the wlan0 interface is managed by wpa_supplicant. This allows the PeachCloud device to connect to a WiFi access point in the vicinity. The IP address of the wlan0 interface is dynamically-assigned by the WiFi router it is associated with. While the device is running in this mode, the ap0 interface is set DOWN and the dnsmasq and hostapd processes are stopped.

In access point mode, the ap0 interface is managed by hostapd - with DNS and DHCP leasing being handled by dnsmasq. The IP address of the ap0 interface is set to 11.11.11.10 by default. Connected devices are leased IP addresses in the range of 11.11.11.11 - 11.11.11.30 (for now). While the device is running in this mode, the wlan0 interface is set DOWN and the wpa_supplicant process is stopped.

The peach-network microservice exposes activate_ap() and activate_client() RPC calls for simple switching of the networking mode. This functionality is also exposed by the menu system of the physical interface.