Hey, >> > >> > I attempted to use mmcli 1.18.6 and nmcli 1.36.0 with network manager and >> > keyfiles to create multiple simultaneous connections to two different APNs >> > with a USB cellular modem on an Ubuntu Jammy Jellyfish 22.04 system. The >> > ModemManager.service file had the debug and test-multiplex-requested >> > options activated on the ExecStart line. >> > >> > Short summary of results: >> > >> > This sequence of commands (sudo nmcli con reload, sudo nmcli --wait 300 >> > con up id conn1, sudo nmcli --wait 300 con up id conn2) did not produce >> > multiple simultaneous packet data network connections, but rather the >> > second connection displaced the first. >> > >> >> Hum... you are right here, and I think I totally mixed it. >> NetworkManager probably runs an explicit disconnect of all bearers in >> the modem before attempting a new connection. Something to improve in >> NM I'd say, we may need NM also to know about the multiplex needs of a >> given device, and allow having multiple connections over the same >> single device. When I tested all this a while ago, I used NM for >> testing, but all those tests were checking the complex process of >> getting one multiplexed connection up, not more than one :) When >> testing and validating multiple multiplexed connections I used a >> different small tester program that used MM APIs directly. >> >> So, yes, for testing all this you should probably play with mmcli and >> manual IP/route settings setup :/ >> > > Any idea when Network Manager might be changed as described above? In 2 > weeks, 2 months, or 2 years? >
Directly depends on whether someone requires this in NetworkManager and whether someone is willing to work on it :) Patches welcome! -- Aleksander https://aleksander.es
