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Questions tagged [systemd-networkd]

56 questions
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2 answers

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 address. This breaks DHCP, and doesn't follow the…
Isvara
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1 answer

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 default route. Here is the networking information…
Foxie The Yiffer
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2 answers

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 virtual machines rather than bare metal). Because of…
RCH
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4
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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 not IPv6. Apologies for the lengthy post. My…
RuMAN S
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4
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1 answer

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
sunknudsen
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3
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1 answer

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 between servers originally set-up by configuration…
Jens Erat
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1 answer

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 change the bond configuration. What I want to do next…
barisdad
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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 can set the timeout on dns requests using options…
kfir
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What controls the NIC naming convention after fresh Ubuntu 20.04 install?

This is a fresh install Ubuntu server 20.04.04 system. I'm using networkd and netplan to configure networking. I did not do any custom install steps, just loaded the .iso and installed Ubuntu server through the prompts. When these machines were…
Rino Bino
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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: networkd ethernets: eth0: addresses: …
burnersk
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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 addresses from this range: #VLAN…
techwreck
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1 answer

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 is Debian-like and based on Ubuntu. The container…
Rich Remer
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1 answer

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
sunknudsen
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2
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1 answer

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 network, configured via DHCP. I'd like to keep this as…
hunmonk
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2
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2 answers

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 [WireGuard] PrivateKey = XXXXX ListenPort =…
hunmonk
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