On Fri, Mar 18, 2016 at 04:25:13PM +0100, Frank Wille wrote: > > I'm currently experimenting to find a way to make my notebook always select > the best network connection possible. The priority should be: > > 1. LAN > 2. WLAN > 3. PPP (UMTS, LTE, etc.) > > (...) > > With PPP as third option it is getting complicated. I have to make sure that > "/etc/rc.d/ppp start" is executed when both, LAN and WLAN lost carrier. And > "/etc/rc.d/ppp stop" must be run when one of LAN or WLAN is becoming > available again.
I would not do any of that but rather leave both LAN and WLAN up, let dhcpcd do the rest and *maybe* adjust route metric parameters in dhcpcd.conf. Maybe, because dhcpcd by default does what most people would prefer: Metrics are used to prefer an interface over another one, lowest wins. dhcpcd will supply a default metric of 200 + if_nametoindex(3). An extra 100 will be added for wireless interfaces. Not sure about PPP; It seems like falling back to PPP is not something I'd like a laptop to do automatically. Also that pkill -x ssh part seems risky.
