In article <004E8170-E842-4E8B-9623-DB3EA236DE9F at outlook.com>, Carlos Lopez <clopmz at outlook.com> wrote: > Hi all, > > > With SystemD, how can I make certain service dependent on certain network interfaces being up? > > For example, I have an 802.1ad bond interface I need to wait on for being up (this interface has no ip address assigned, > it is used to capture networks packets with a tcpdump’s script). Every time this service fails because bond interface > is not up. > > > > I have configured the service as: > > > > [Unit] > > Description=tcpdump capture script > > After=network.target > > Wants=network-online.target > > > > But it doesn’t work …. Any tip or trick? Just add a line to the tcpdump script to wait for the interface. Something like this: until ifconfig -s | grep -q '^bond0' ; do sleep 1 ; done Cheers Tony -- Tony Mountifield Work: tony at softins.co.uk - http://www.softins.co.uk Play: tony at mountifield.org - http://tony.mountifield.org