Questions tagged [netplan]
For questions specifically about Netplan, the YAML network configuration abstraction created by Canonical. If this question is not about Netplan, try a more general tag like [networking]
37
questions
0
votes
1
answer
71
views
ARP issue with VLAN on VMWare Workstation
I have two vm in WMware Workstation 17 Pro.
They are connected like this (by the way the OS is Ubuntu 22.04)
Ubuntu1 -- vlan 10 -- Ubuntu2
But they can't connect each other:
So I check source ...
- 3
0
votes
0
answers
351
views
Name Resolution Failure and Network Not Showing
Update
I reinstalled Ubuntu to prevent spending hours trying to resolve this issue. If the issue occurs again, I will know to write down every single change I make and see if I can pinpoint what ...
- 1
0
votes
2
answers
353
views
NetworkManager Automatic Ethernet Connection
I've recently picked up Rocky Linux 9.1 and am trying to get the basic networking to work correctly using netplan and networkmanager. There must be something simple missing here...
I have a very ...
0
votes
1
answer
120
views
Can't reach host on internal network
I have 3 hosts running on the same Proxmox node with two network interfaces each. The first network interface on each node is on the 10.100.59.0/24 subnet with 10.100.59.1 being the default gateway ...
- 3
0
votes
1
answer
106
views
kernel routing tables config does not persist after reboot
I asked a question regarding some faulty kernel routing tables configuration that I had in one of my machines due to an unexpected power outage. That event left the machine with a messed up network (...
- 177
0
votes
1
answer
323
views
Deploying dhcp-server on router: is netplan involved?
I have a PC that acts as my home router.
It has a NIC to the WAN.
It has a NIC to the LAN.
It has a NIC to the WAP.
It also has a bridge that spans the LAN/WAP.
Now, I want this router to dispense ...
- 207
1
vote
1
answer
6k
views
Configure two NICs with different IPs in Netplan - Ubuntu 22.04
Configure Two NICs for Different Networks on the Same Machine
Question
How do I correctly configure two NICs on separate networks? The goal is is to have all traffic returned from the interface it was ...
- 119
3
votes
0
answers
2k
views
How to bridge a VLAN and a physical interface with netplan?
I have two workstations running Ubuntu 22.04 Server using netplan for network device management.
The first workstation has 5 NICs. The only two that I think matter for this are enp0s25 and `ens1. Here ...
- 194
0
votes
0
answers
776
views
Installing an ubuntu 22.04 server on wifi and then connecting an ethernet adapter
I am turning an old laptop into a server for reasons.
I installed ubuntu server edition on it, and at the time I did not have an ethernet adapter, just a wifi card on the laptop.
subiquity did it all ...
0
votes
0
answers
2k
views
Ubuntu 20.04 netplan static configuration gets reset after a while
Expected behavior:
My netplan configuration is always used and the static IP addresses I configured stay like configured.
Actual behavior:
Somehow the machine "forgets" the configuration and ...
- 268
0
votes
1
answer
4k
views
Ubuntu Server 20.04.2 LTS Network slow/not working
My network issues first started when I got a DNS error, so I started trying to change my DNS server to Cloudflare/Google DNS. I started reading how to do this and I found that latest Ubuntu releases ...
- 1
1
vote
0
answers
187
views
Netplan ignores try and apply arguments
When I enter command like:
netplan try
or
netplan apply
netplan outputs nothing.
If I try again to start those commands netplan outputs error:
bind: address already in use
netplan: fatal error: cannot ...
- 111
2
votes
1
answer
3k
views
Add a device static route with netplan
I would like to add a static ip route to a device in my netplan configuration.
A normal route looks like this:
eth0:
<stuff>
routes:
- to: 10.0.0.0/24
via: 192.168.3.1
But ...
- 21
1
vote
0
answers
11k
views
Netplan Configuration
When I apply the configuration below, everything works fine (IE.: I am able to reach my server over eth0 and wlan0). But, after applying the netplan configuration, I received the following output:
***...
- 723
0
votes
0
answers
112
views
Managed switch: make port communicate on two VLANs
I'm trying my best to have the following scenario.
VLAN1: All of my WiFi and non-IoT devices
VLAN2: All of the IoT devices including Raspberry Pi manager running Linux.
I want to make it possible to ...
- 1
0
votes
0
answers
5k
views
Ubuntu 20.04 upgrades - DNS name resolution fails on internal network
My company distributes software to clients on Ubuntu VMs. Recently we've been updating all client VMs from Ubuntu 16/18 to Ubuntu 20.04.
We've been having an issue where DNS name resolution isn't ...
- 111
1
vote
0
answers
493
views
Ubuntu 20.04 LTS, netplan: Setup LACP for two InfiniBand interfaces?
I've been asked to setup a bonded InfiniBand interface (LACP) on a Ubuntu server running 20.04 LTS and currently configured with netplan. I've searched the topic, but no real good answer on how to set ...
- 11
0
votes
0
answers
888
views
netplan - Network with DHCP configured, but no internet
I am trying to configure my Ubuntu Server 20.04 LTS to use DHCP in its network configuration.
Many tutorials on the internet recommend that I create the following file with the following settings...
...
- 1,194
2
votes
1
answer
16k
views
Error: WARNING: systemd-networkd is not running, output will be incomplete
I am using systemd-networkd to render network interfaces, in the initial network configuration i had a network
connection, but as soon as i boot into the bridged network via the netplan config it ...
- 21
0
votes
1
answer
598
views
Automatic creation of the second WiFi interface with netplan (Ubuntu 20.04)
I want to create wifi access point on my machine together with ordinary wifi interface. My card support this operation. I can do this manually with the following commands (note that wlan0 already ...
1
vote
1
answer
2k
views
Netplan/DHCP Config: Forwarding requests from one bridge port to another
im trying to configure a bridge network on Ubuntu 20.04. There are 4 ethernet ports in the brige. This is how the corresponding netplan config looks like:
network:
version: 2
ethernets:
...
- 25
1
vote
1
answer
4k
views
Applying Netplan Access Point settings?
I am upgrading a previous configuration of an AIO server/access point to Ubuntu 20.04. I wrote a Netplan configuration for our interfaces, as follows -
network:
version: 2
renderer: ...
- 11
0
votes
1
answer
381
views
Why does networkd forget the bridge configuration then complains about invalid gateway?
I use 2 of the 4 ethernet sockets as a bridge, which I configure with netplan:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: no
eno2:
dhcp4: no
eno3:
...
- 131
1
vote
1
answer
816
views
OVH VPS (Ubuntu 18.04) can not connect with IPv6
I have a VPS server from OVH running Ubuntu 18.04 LTS and I noticed today that the IPv6 was not working at all, nor was the IPv6 assigned to me listed when I looked in ifconfig. Then I followed the ...
0
votes
0
answers
2k
views
Ubuntu 18.04 netplan bridge. Keep one of physical interfaces down on boot
I have got an server with Ubuntu 18.04 (upgraded from 16.04 recently), which runs two qemu-kvm VMs.
The server has two network interfaces, only the first is connected. The second is not used / wired ...
- 201
0
votes
1
answer
196
views
How can I manually assign a static IP in Ubuntu 18.04?
I have a VPS server running Ubuntu 18.04 which has a /64 subnet of IPv6 addresses. For the purpose of this post, let's call it 2601:aaaa:aaaa:aaaa::/64. The VPS website says I can use any address ...
0
votes
1
answer
974
views
How to enable screen sharing when using networkd in netplan?
On Ubuntu 18.04, I am configuring a bond of 2 interfaces and using 2 interfaces of another NIC. Here is my netplan entry:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: ...
- 1
3
votes
1
answer
309
views
How to configure AP priority in netplan?
I would like to configure more than one AP in netplan,
like this:
wifis:
wlan0:
access-points:
network1:
password: "abc"
priority: 0
...
- 413
7
votes
0
answers
13k
views
netplan configuration not active -- ubuntu 18.04
trying to set up a fixed IP address on one of two NIC. I try using netplan. Not working at all.
Not an expert on this, I am out of my wits and ready to roll back to some other way (networkd). Maybe ...
- 171
0
votes
0
answers
683
views
How to determine root of network unreachable error thrown by Docker
I'm trying to configure docker to run on an old SuperServer of mine, and can't get the networking bits setup correctly. Network config and Docker errors are below, ideas and suggestions are welcome.
...
- 1
0
votes
1
answer
181
views
How to rename "lo" interface in Ubuntu Server 18.04?
How to rename "lo" interface in Ubuntu Server 18.04 ?
I have tried using udev rules without success, here is my code:
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:00:00:00:00:...
- 3
2
votes
0
answers
858
views
Bridge config in netplan does not come up at boot
I had an ubuntu 18.04 working and decided to move it to a VM in Proxmmox.
Configuration includes a bridge, it was working fine in the previous system but it does not come up at boot in the Proxmox VM....
- 21
1
vote
0
answers
520
views
Ubuntu 18.04 Netplan routing to VM
I have an Ubuntu 18.04 server with Hetzner on which Virtualbox
is running Windows server '12.
The host has ip: 144.76.116.79
I've got an additional ip, 144.76.116.125, since I want all traffic ...
- 11
2
votes
1
answer
5k
views
Ubuntu 18.04 netplan with bridge
I am running Ubuntu 18.04 and my netplan configuration has suddenly stopped working. When I run
sudo netplan apply
the following messages appear and I lose connection
Traceback (most recent call ...
- 23
0
votes
2
answers
4k
views
How to configure netplan in Ubuntu 18.04 for DHCP and Static Routes
I have a server running Ubuntu 18.04 with 2 NICs.
Each NIC is attached to a different network.
My current configuration looks like:
cat /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: ...
- 1
0
votes
1
answer
4k
views
Configure a bridge connection as a hub with netplan
My current problem hits the limits of my basic networking skills.
In short : I "tapped" a server with multiple network interfaces on a network cable linking my router and my media center. I try to ...
- 131
4
votes
1
answer
3k
views
Lost network connectivity on Hetzner with Netplan bridge
I installed the Ubuntu 18.04 and wanted to have a bridge interface instead of using the main interface directly for KVM virtualization:
Here is the Netplan default configuration after installation, ...
