Questions tagged [systemd-networkd]

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How to slice a /56 prefix into a /64 one and assign IPs to intefaces with systemd-networkd (only) and DHCPv6-PD?

I know people do use mixtures of tools (radvd, dhclient, dibbler, dhcpd, etc.). I am provided with a /56 IPv6 slice. SLAAC is not available, just PD/RA. I just want to know how to get a routable, ...
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1answer
42 views

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 ...
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58 views

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 ...
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25 views

How to test a new network configuration before restart systemd-networkd

I have added an ip address in the [Address] section in a .networkfile inside the directory /etc/systemd/network I must have done something wrong when adding the address since I managed to lock me out ...
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24 views

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 ...
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1answer
99 views

How to drop dhcp ip assignated when using clevis/tang on Ubuntu 20.04

I unlock my drive with clevis/tang on an Ubuntu server (NBDE). It works fine, but even if my server is configured to use a static ip in /etc/netplan/01-netcfg.yaml, my network interface also listen on ...
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1answer
188 views

How to create dummy interface in /etc/systemd/network?

I am trying to create an equivalent to the following for systemd. auto strongswan0 iface strongswan0 inet static address 10.0.2.1/24 pre-up ip link add strongswan0 type dummy
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1answer
214 views

How to configure interface aliases using Systemd-Networkd?

I am trying to port the following alias from /etc/network/interfaces to /etc/systemd/network/eth0.network. auto eth0:1 iface eth0:1 inet static address 10.0.2.1/24
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183 views

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 ...
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1answer
290 views

Add IP addresses to systemd-network besides netplan

On an Ubuntu 20.04 server, netplan is used to configure the network. It can configure ordinary static IP addresses but I need additional IPv6 addresses with preferred_lft=0. Netplan can't do that (...
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301 views

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 ...
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1answer
148 views

Stop Google Compute instance from configuring second network interface

I'm spinning up a VM in Google Compute Engine running Debian Buster, and configuring it with two network interfaces. The first uses an ephemeral IP config, and is assigned to a publicly routable ...
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1answer
329 views

Failure to configure Wireguard device via systemd-networkd on Google Compute Engine VM

Debian Buster image on a Google Compute Engine VM, and I have this systemd-networkd config placed at /etc/systemd/network/wg0.netdev to configure a Wireguard device: [NetDev] Name=wg0 Kind=wireguard ...
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0answers
167 views

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.: ...
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2answers
338 views

create alias for network link using systemd-networkd configuration

I want to add aliases to my network links to use them as short descriptions. I am configuring my interfaces using systemd-networkd, having systemd version 241 on a debian buster server. I've created ...
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0answers
165 views

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 ...
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1answer
676 views

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 ...
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1answer
154 views

Make temporary changes to systemd-networkd which go away after reboot, for testing?

systemd-networkd is the way to configure a network using systemd. The files live in /etc/systemd/network. If I want to change a setting, I can edit a file there, and then do a systemctl restart ...
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0answers
69 views

How to set custom settings in resolv.conf when using system-resolvd

I would like to use option values in /etc/resolv.conf. From reviewing the relevant man page (https://linux.die.net/man/5/resolv.conf) I noticed that I can configure various options. For example one ...
3
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1answer
571 views

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 ...
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1answer
433 views

Change multiple interface IP’s with networkd on coreos

I have a working CoreOS machine where I need to change two virtual network interface IP’s in the /etc/systemd/network file like this: [Match] Name=interface name [Network] Address=ip address. This ...
2
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1answer
658 views

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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1answer
1k views

Renaming networking interface through systemd-networkd not working in upgraded Ubuntu 18.04

In an Ubuntu 18.04 server, I was not able to rename network interfaces through proven config-management-applied systemd-networkd configuration working on all other servers. The only difference I see ...
1
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1answer
494 views

systemd networkd is restarted after systemctl stop

I have some python code that needs to change the configuration of a linux bond using systemd-networkd. I tried editing the .network and .netdev config files and restarting networkd but it doesn't ...
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0answers
62 views

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 ...
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0answers
226 views

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 ...
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2answers
964 views

Is there a way to automatically add network interfaces to systemd-networkd and/or netplan?

I'm currently building pre-configured disk images for Ubuntu 18.04 servers. While the hardware is mostly the same, there are a few different network interfaces between the devices (and some are ...
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0answers
310 views

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 ...
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0answers
934 views

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 ...
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1answer
849 views

Too many symlinks error setting up a network bridge with systemd on debian9

After a reboot the host is unreachable and I see this error in the logs vmbr0: Could not join netdev: Too many levels of symbolic links I really don't know what's causing it and I don't find anything ...