Martin Gignac <martin.gignac@xxxxxxxxx> wrote: > Hi Florian, > > OK, I understand now. > > - on RHEL/CentOS 8 I *was* using existing network interfaces, but > there are *no* nf_flow kernel modules available, and > - on Fedora 30/33 there *are* nf_flow kernel modules available, but I > was *not* using existing interface names > > Both cases give off the same error message, which confused me. Yes, I agree its confusing. In first case its because module isn't found and in second case its the interface names that could not be found. > In Fedora the systemd > unit file for the nftables.services states that nftables should start > before the network.pre-target: [..] > At this stage Network Manager hasn't even begun to initialize, much > less create any logical interfaces. Sure. I think the systemd default is sane though. > Or is there another way that I am not seeing? Can't nm execute some action when an interface comes up? That way you could just add the flowtable later.