Example 16. Bluetooth connection profiles

NetworkManger supports both connecting to NAP and DUN devices as a client. It also + supports sharing the network via a NAP server. +

For NAP client connections, NetworkManager automatically creates a suitable in-memory profile + for paired devices if none is available. You may use that generated profile directly, but you may also modify + and persist it, which will prevent to automatically re-create it. You may also create a profile from scratch. + For example, the following uses DHCP and IPv6 autoconf for address configuration: +

$ nmcli connection add type bluetooth con-name "Profile for My Bluetooth Device (NAP)" autoconnect no bluetooth.type panu bluetooth.bdaddr "$BDADDR"

For DUN connections, the user needs to configure modem settings and hence no profile + gets created automatically. The modem settings depend on your device and you either need + a "gsm" or a "csma" section. For example, +

$ nmcli connection add type bluetooth con-name "Profile for My Bluetooth Device (DUN)" autoconnect no bluetooth.type dun bluetooth.bdaddr "$BDADDR" gsm.apn apn.com

Finally, you can create a bluetooth hotspot. BlueZ implements those as a bridge device, + so such profiles also have a bridge section. Also, you probably want to set IP methods as "shared", + so that clients get automatic IP addressing. Note that the "shared" IPv4 method requires dnsmasq to be available. +

$ nmcli connection add type bluetooth con-name "My Bluetooth Hotspot" autoconnect no ifname btnap0 bluetooth.type nap ipv4.method shared ipv6.method shared