<div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">><br>
> 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.<br>
><br>
> Short summary of results:<br>
><br>
> 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.<br>
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Hum... you are right here, and I think I totally mixed it.<br>
NetworkManager probably runs an explicit disconnect of all bearers in<br>
the modem before attempting a new connection. Something to improve in<br>
NM I'd say, we may need NM also to know about the multiplex needs of a<br>
given device, and allow having multiple connections over the same<br>
single device. When I tested all this a while ago, I used NM for<br>
testing, but all those tests were checking the complex process of<br>
getting one multiplexed connection up, not more than one :) When<br>
testing and validating multiple multiplexed connections I used a<br>
different small tester program that used MM APIs directly.<br>
<br>
So, yes, for testing all this you should probably play with mmcli and<br>
manual IP/route settings setup :/<br><br></blockquote><div><br></div><div>Any idea when Network Manager might be changed as described above? In 2 weeks, 2 months, or 2 years? </div><div><br></div><div>Thanks to Aleksander for his responses to my inquiries. Much appreciated.</div><div><br></div><div>-Riff</div></div></div>