On Tue 21 Aug 2018 at 16:39:13 (+0100), Eric S Fraga wrote: > Hello, > > I have a laptop running buster (testing) which connects to my wireless > network (192.xxx). I also have a new Gemini PDA (also running Debian > but stretch in this case) which connects to the same network. So far, > so normal. > > However, I can connect the Gemini PDA via USB cable to the laptop and > both systems will have two different networks available, with the USB > one being 10.xxx. I can then ssh, say, from either system to the other > using IP addresses in either 192 or 10 networks. > > On my desktop computer, connected by Ethernet cable to the same network > (192.xxx), plugging the USB cable from the Gemini to the desktop does > not lead to a new connection being made on the desktop computer. I can > connect to the USB network (nmcli device connect ...) but it disconnects > me from the wireless (and vice versa). > > Would somebody please point me to the right magical incantation that > would allow my desktop computer to have both connections active > simultaneously?
If NM is like wicd, it can only handle one connection at a time. What I would do is to set up your 10.xxx connection in /e/n/i which should mean that NM doesn't know about it or touch it. I assume you'll need a route as you can't go through the gateway. Cheers, David.