It's working now, I had my understanding messed up a little. Thanks for the clarification!
Kind regards, Lukas Wolf On Mon, 14 Nov 2022 at 20:05, Andrei Borzenkov <arvidj...@gmail.com> wrote: > On 14.11.2022 15:49, Lukas Wolf wrote: > > Hi all and thanks a lot for all your work on systemd! > > > > I'm trying to setup a VXLAN configuration with multicast with > > systemd-networkd but struggle to make it work. What I'm trying to > replicate > > is the following (working command): > > > > ip link add vxlan100 type vxlan id 100 dstport 4789 local 10.100.200.4 > > group 224.4.0.144 dev lo ttl 5 > > (this command fails without specifying 'dev lo') > > > > My config file, vxlan100.netdev: > > [NetDev] > > Name=vxlan100 > > Kind=vxlan > > > > [VXLAN] > > VNI=100 > > TTL=5 > > DestinationPort=4789 > > Group=224.0.0.144 > > Local=10.100.200.4 > > Independent=true > > > > If you want Group you need device and so cannot use Independent > ... > > > > As seen in the last line of the log, it throws an invalid argument error > > and no VXLAN device is created. This does not happen if I remove the > > "Group=" part in the configuration. As mentioned above, the "ip add > link" > > command needs a "dev=" argument to work but I have not found a way to > > specify a device in the netdev config file... > > > > I have also tried it without Independent=true and having a network file > > instead with VXLAN=vxlan100, > > Wat do you mean "instead"? You need network file for base interface that > refers to vxlan and netdev file for vxlan. > > > but then it just silently fails without log > > output. > > > > Works for me (at least, to the extent that vxlan100 is created) > > bor@bor-Latitude-E5450:~$ ip l > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode > DEFAULT group default qlen 1000 > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 > 2: eno1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel > state DOWN mode DEFAULT group default qlen 1000 > link/ether 34:e6:d7:85:0b:1c brd ff:ff:ff:ff:ff:ff > altname enp0s25 > 3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue > state UP mode DORMANT group default qlen 1000 > link/ether 5c:e0:c5:27:c7:70 brd ff:ff:ff:ff:ff:ff > 4: br0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state > DOWN mode DEFAULT group default qlen 1000 > link/ether 6a:7b:d1:2a:ce:9d brd ff:ff:ff:ff:ff:ff > 5: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel > master br0 state DOWN mode DEFAULT group default qlen 1000 > link/ether 2a:7d:ac:33:fd:47 brd ff:ff:ff:ff:ff:ff > bor@bor-Latitude-E5450:~$ sudo systemctl start systemd-networkd.service > bor@bor-Latitude-E5450:~$ ip l > ... > 13: vxlan100: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN mode > DEFAULT group default qlen 1000 > link/ether b6:1d:97:9f:e6:eb brd ff:ff:ff:ff:ff:ff > bor@bor-Latitude-E5450:~$ cat /etc/systemd/network/eno1.network > [Match] > Name=eno1 > > [Link] > ActivationPolicy=always-up > > [Network] > ConfigureWithoutCarrier=true > Address=10.10.10.10/24 > VXLAN=vxlan100 > bor@bor-Latitude-E5450:~$ cat /etc/systemd/network/vxlan100.netdev > [NetDev] > Name=vxlan100 > Kind=vxlan > > [VXLAN] > VNI=100 > TTL=5 > DestinationPort=4789 > Group=224.0.0.144 > Local=10.10.10.10 > bor@bor-Latitude-E5450:~$ > > >
