Questions tagged [systemd-networkd]
The systemd-networkd tag has no usage guidance.
35
questions with no upvoted or accepted answers
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Setting up multiple IPv6 routes over a single interface on Linux
tldr; A LAN device is able to get 2 separate internet connection (1 NATted from ISP Router, 1 from manual PPP connection). Able to separate ISP-WAN and PPP-WAN IPv4 into 2 routes using ip rules but ...
4
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2
answers
3k
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Why is networkd changing the MAC addresses of my bonded interfaces?
When I add the config files below into /etc/systemd/network and restart systemd-networkd, I find that the MAC addresses of bond0, eth0 and eth2 have all been changed to a single, locally administered ...
4
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1
answer
2k
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Systemd's Networkd: Unable to add ipv6 default route
I am having a hell of a time getting IPv6 address connectivity set up on my new VPS. I thought I knew what I was doing but apparently networkd disagrees, I keep getting issues when trying to add a ...
2
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0
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2k
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Why is my systemd-networkd not aquiring an IP address via DHCP?
On my notebook running Gentoo, I set up the following things:
Kernel with all necessary settings and modules
WPA_Supplicant
Systemd
Systemd-Networkd
Almost everything works as expected, the ...
2
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0
answers
1k
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OpenSSH server on Ubuntu Impish fails to start after reboot, only manual restart works
Preface and issue
I have an Ubuntu 21.10 (Impish) server, which network is managed by netplan and systemd-networkd.
My /etc/netplan/01-netcfg.yaml looks like this:
network:
version: 2
renderer: ...
2
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0
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563
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Route untagged vlan to a tagged vlan with nftables
I have played around a lot with nftables, but I am stuck on this problem for the entire day. I have a wifi ssid that gets tagged vlan20. This part works, and I can see that dnsmasq is assigning ip ...
2
votes
1
answer
2k
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systemd-nspawn container DNS not working
I'm trying to launch a container with systemd-nspawn (from the systemd-container package, version 241), but the container is not able to resolve host names. The host environment is PureOS 9.0, which ...
2
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0
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625
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systemd-networkd: Set DNS via CLI for managed link
I want to set the DNS for an interface managed by systemd-networkd via cli.
The file system is mounted read-only, so is there way to achieve this without manipulating any files?
I tried e.g.:
...
1
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0
answers
10
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How to retrieve DHCP information when using systemd-networkd?
Our Ubuntu 22 machines have networking configured using netplan and systemd-networkd. Network manager (and therefore nmcli & co.) are not installed.
In a bash script, I am looking to extract ...
1
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0
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575
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Contents of /etc/systemd/network/10-eth0.network gets overwritten on reboot
I am using a VMware photon OS VM.
I want to configure a secondary IP address for my eth0 interface.
And following the lead in : How to configure interface aliases using Systemd-Networkd?
I added an ...
1
vote
1
answer
574
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untagged traffic must become tagged traffic after passing through the bridge
I'm trying to achieve something simple.
I have a machine which has a single physical port enp89s0. this is connected to the native VLAN (VLAN=1).
I need to create VMs and place them on a separate VLAN=...
1
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0
answers
233
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systemd-nspawn can't auto login
I'm trying to config auto login for my nspawn container and I created /etc/systemd/system/[email protected]/autologin.conf
and inside of that I wrote this config:
[Service]
ExecStart=
...
1
vote
1
answer
2k
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Bridge on a bonded interface with systemd-networkd
So I recently changed my server from a Debian based distribution that used the old
ifupdown style configs over to systemd-networkd.
What I want is, my two primary interfaces, bonded, and then a bridge ...
1
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0
answers
288
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Systemd-networkd fails IPv6 autoconfig where ifupdown succeeds
Title is a bit vague, since I do not know what is going on. I want to switch to systemd-networkd, and I want it to autoconfigure both IPv4 and IPv6. I come from ifupdown, with the following config:
# ...
1
vote
1
answer
3k
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Netplan - Configure two interfaces on same network
I have a set of Ubuntu 18.04.5 LTS servers with two interfaces each.
eno1 - 1g management interface
eno5 - 10g data interface
Both interfaces are in the same L2 subnet (10.98.16.0/22). My issue is ...
1
vote
1
answer
3k
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Configuring DHCP lease when using systemd-networkd on Ubuntu 18.04 Server
we have an Ubuntu 18.04 dedicated server hosted by IONOS (1&1) and want to use one IPv4 and 2 IPv6 addresses. Recently we decided to switch from networking.service to systemd-networkd.service to ...
1
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0
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398
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KVM: centos get no bridged ip on fedora
I've installed on my fedora machine centos as vm over kvm. My vm does not get an ip-address from my dhcp server over the bridge interface. When I want to active the interface via nmtui on my centos ...
1
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0
answers
202
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Systemd host-only bridge
I'm trying to create a bridge device for host to virtual machine only communication with systemd networking.
Currently I have a netdev and a network file. The bridge is created after a restart of ...
1
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0
answers
464
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netplan apply breaks bonding
Whenever I change my Network configuration on my Ubuntu 18.04 Server and apply it using netplan apply command, the bonding interface is no longer usable. While the IPs are correct, there is simply no ...
1
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0
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2k
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Issue with bond + vlan + bridge on top of systemd-network
We are using two switches (let's call them A and B), and each host (running debian 9) has 2 nics (eno1 and eno2), connected to A and B. Those interfaces are bonded together (bond0) in active-backup ...
0
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0
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31
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Setting the same secondary public IP on multiple servers
The question concerns floating public IP's. I'm trying to set up a failover mechanism in the simplest way possible. Are there any hidden downsides to configuring the same secondary static public IP on ...
0
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0
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43
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Netplan persistency
I have a script that modified a lot of routes by using ip route and it also edits the netplan config in /etc/netplan. However I've noticed that when a ip link goes down temporarily and then up again ...
0
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0
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52
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One-shot DHCP request with systemd-networkd
How to/is it possible to make a one-shot DHCP request without writing/modifying a .network file for the interface?
With dhclient, you could just run dhclient enp23s0f4 to obtain an IP address. I am ...
0
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1
answer
102
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systemd-networkd: add second gateway for the second public ip
What is the recipe for adding a second gateway/route for the second public ip that the machine has for systemd-networkd (on the single interface that is used)? This is Alma9/systemd-252
L.E. to ...
0
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0
answers
133
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Using systemd-networkd inside a Podman container
The end goal is to have a macvlan interface set up within a Podman container. I have the following Dockerfile
FROM docker.io/library/debian:bookworm-slim
RUN apt-get --yes install systemd
RUN ...
0
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0
answers
180
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Issue when switching from networkd to NetworkManager
On an Ubuntu 22.04 instance on Google Cloud, I can switch from networkd to NetworkManager like this:
$ sudo apt install network-manager
$ sudo nano /etc/netplan/50-cloud-init.yaml
# add:
network:
...
0
votes
0
answers
750
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How to overwrite an interface config with match option in netplan?
I am using an Ubuntu 18 on a virtualbox machine and I am trying to overwrite a netplan config related to an interface. There are two config files located in /etc/netplan/.
50-cloud-init.yaml:
network:
...
0
votes
0
answers
1k
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IPv6 forwarding enabled but not working. How to get it to work?
My system is running Debian GNU/Linux 11 (bullseye)
My network is configured with two interfaces, one to my ISP and one to my lan.
I am using systemd-networkd to manage the interfaces. The problem is ...
0
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0
answers
3k
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Force DHCP client to use only IPv4
I have Linux client (running systemd-networkd, version 244), and I want to configure it's network only with IPv4. However, the DHCP server offers both v4 and v6. Is it possible to limit the client to ...
0
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1
answer
735
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lost network interface to systemd-networkd. What is going on?
I have a systemd host with 4 ethernet ports.
one port is reserved for isolated containers. It is set as:
# /etc/systemd/network/20-eth3-reserved.network
[Match]
Name=eth3
[Link]
Unmanaged=yes
I also ...
0
votes
1
answer
602
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systemd-networkd: how to elegantly switch between creating a wireless access point and connecting to a wifi network
I'm working on a headless IoT device that creates its own access point so that the user can access its web UI and do necessary configuration. The system uses networkd but I'm not very attached to it ...
0
votes
1
answer
838
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WireGuard via systemd-networkd but with /etc/wireguard/wg0.conf
Is there any solution to use /etc/wireguard/wg0.conf for both, wg-quick and systemd-networkd.
Following this example I have to duplicate configuration, but I want to store config in one place.
How to ...
0
votes
0
answers
1k
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Add DNS options to systemd-resolved /etc/resolv.conf
I am using systemd-networkd and systemd-resolved. I have /etc/resolv.conf being a symlink to /run/systemd/resolve/stub-resolv.conf as recommended.
I guess that /run/systemd/resolve/stub-resolv.conf ...
0
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1
answer
2k
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systemd: Why "ens3: Could not set route: Network is unreachable" when default route is valid?
Recently my VPS hosted at OVH abrutly lost connectivity. Upon further inspection, systemd-networkd was failing to set default route: ens3: Could not set route: Network is unreachable. It isn't clear ...
0
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0
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498
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What does interface state "configuring" mean?
My systemd-networkd-wait-online.service fails. When I take a look:
% networkctl
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier ...