Questions tagged [network-bridge]
Questions about configuring and using bridging interfaces
385
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How to remove bridge from eth0 or restore default eth0?
I've created a bridge between eth0 and another switch, 'br0', how can i remove this bridge? I think it's preventing me from having network access.
Also I don't know if the current state is really a ...
- 1
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35
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Port Forwarding to vboxnet0 with saving client's real IP
I set up the internet on a virtual machine that is running through VirtualBox and set up port forwarding. First, in rt_tables of Host Machine (iproutes2) I added this:
100 vm0
Then I run this:
ip ...
- 111
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0
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25
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How to use vpn in shared bridge connection
Laptop is connected to wifi. Laptop also provide internet to another machine (M1) with ethernet port using bridge connection. Now when i use VPN in laptop, it works fine but the vpn is not available ...
- 1
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12
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Synchronise interface names attached to IP addresses between host Ubuntu and QEMU guest Ubuntu
I've set up a second bridge on QEMU using a bridge named virbr1. In my host OS I have:
virbr1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.100.1 netmask 255.255....
- 133
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96
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Netplan AP bridge not applying any IP addresses to any interface
I'm trying to set up an Ubuntu server as a wireless access point but having some difficulty getting it all to work. I'm using the following netplan config:
network:
version: 2
renderer: ...
- 1
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76
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Ping Ubuntu 22.04 Desktop to Virtual Machine Manager 4.0.0 VM Destination Host Unreachable
Goal: Host machine running Virtual Machine Manager to have guest vm router on the LAN.
Host Ubuntu 22.04 Desktop 192.168.1.120 pinging VM router pfSense 192.168.1.1 error: Destination Host Unreachable....
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82
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Should I use bridge or route with netplan?
I have an RTSP camera connected through ethernet to a computer. This computer is set up to allow connections over WiFi. What I want is to be able to reach the camera from a laptop that is connected ...
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2
answers
352
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Ubuntu 20.04 bridge connection is not working
I have a network scheme, as shown in the picture. My goal is to access all my devices in the network. I don't want any NAT, as it is already under my router (which runs OpenWrt). Each device should ...
- 99
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139
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Ubuntu 22.04 vm bridge to wifi so that vms get ip address via dhcp
Preamble
I've tried following assorted tutorials. None are specific to Ubuntu 22.04. Every one I've tried so far end up with me having to reinstall to get wifi working. Some assume the machine has a ...
- 101
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134
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Ubuntu 22.04 hotspot and Pi-hole, Issue with dnsmasq
I have an issue with the hotspot on my little server:
The hotspot is configured and I think it's ready to work, only the DHCP is missing. dnsmasq is not starting:
dnsmasq.service - dnsmasq - A ...
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answers
54
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Share internet connection from Ubuntu VM running on Windows Hyper-v to another Ubuntu VM running on a different hyper-v server
I'd like to know how to share internet connection from an Ubuntu 22.04 VM (server) running inside Hyper-v Windows 10 machine to another Ubuntu VM 22.04 (client) running in hyper-v a different windows ...
- 101
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238
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VM machines cannot ping each other via bridge network on Ubuntu Server 22.04
I created vhost1 and vhost2 by using virt-manager which run on a Ubuntu server 22.04
The Host and VMS connected via a bridge network. So here's the thing:
The ping working fine between Host and VMS, ...
- 1
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0
answers
107
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KVM netplan bridge is not loaded after reboot, but works manually loaded
I have a KVM host running on private network with subnet mask 192.168.62.*
The server has 4 ethernet interfaces, 2 of them are connected to the same switch.
I have tried to create a netplan yaml file, ...
- 1
1
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1
answer
654
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KVM Guest on Ubuntu 22.04 doesn't pass traffic over bridged connection
I have a relatively straightforward setup for KVM guests using libvirt on Ubuntu 22.04. (All packages updated today). I want a bridged network so I can reach the guests from other machines on the LAN....
- 2,187
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114
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Error in network definition: unknown key 'network' network:
I have been going at it for almost a day and stuck on this yaml configuration. Basically I am trying to setup a bridge network so that my VMs can receive IPs from my DHCP on my LAN network. I have ...
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48
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Not able to connect to the internet
I'm not able to connect to the internet on my VirtualBox VM as a bridged adapter.
The following image shows where eth is not connected:
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36
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Bridging connection between eth0 and wlan0
I'm trying to bridge eth0 and wlan0 to pass traffic from a device connected via ethernet. I understand there's a lot of complications with trying to add wlan's to a bridge.
Ideally I'd like to setup ...
- 1
1
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0
answers
182
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Bridge between physical interface and virtual (Cockpit)
At the moment I'm using Debian 11 as the main system and Ubuntu 18.04 as the system for virtualization, I do all the management through Cockpit.
The server is connected via a router, the connection ...
- 11
0
votes
1
answer
315
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Add unmanaged bridge to Docker
I am setting up a server with Docker and LXD. I have a real network with several vlans which I want to have bridges to, that can be shared between Docker and LXD. This was relatively easy with LXD, ...
- 1
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1
answer
90
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Unmanaged vlan bridges
I am trying to add a few unmanaged bridges to LXD. I have 2 NIC's on the server, one is the main Lan for the server and it's own services and the other is meant to be used by LXD exclusively. I want ...
- 1
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1
answer
398
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netplan STP enabled or disabled
I am running Ubuntu 20.04.4 LTS and configured bridges. I am not sure if STP is enabled or disabled by default on netplan created bridges. As per netplan doc [1] its Enabled by default.
[1] https://...
- 111
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237
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Bridge networking for Ubuntu 20.04 Desktop system
I want to run a a computer emulator like SimH that offers ethernet device emulation via a tap interface. It should be possible to access the host system and the internet from the emulator, and it ...
- 101
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0
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277
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Bridged network not forwarding ICMP packets after a small amount of time in Hyper-V Ubuntu 22.04 VM
I created an Ubuntu 22.04 VM using Hyper-V with the goal of creating a bridged network to act as an unmanaged switch. I'm able to successfully achieve this but after around 5 minutes of inactivity, ...
- 1
1
vote
1
answer
177
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Bridge with netplan fails with a slow to come up interface
My home server connects to the internet with enp7s0, and shares internet through 3 devices, enp2s0 (ethernet to switch), enp3s0 (ethernet to router that provides guest network) and wlxe0e1a935d56d (...
- 121
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0
answers
107
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Stuck a startup error failed to start network name resolution
i installed ubuntu yesterday it was running fine until then but then it started giving me this error I looked for other solutions while entering the codes it says you have read only file system
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0
answers
127
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Could not get the IP adress in Virtual Box in bridge mode of network
I have Windows 11 operating system. I installed Ubuntu 18.04.6 on this operating system with Virtual Box. I want Host machine(Windows) and Guest Machine(Ubuntu) to get IP over same network. But when I ...
0
votes
1
answer
388
views
No wifi hotspot when docker is enabled
When I started the docker service/socket, I'm no more able to share my laptop connection via wifi hotspot. To be more precise, my phone still detects my hotspot, I enter the password, it tells me '...
1
vote
1
answer
440
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Connecting a ubuntu to the internet via one interface and to an internal network via another
I have a computer running Ubuntu 20.04 LTS with two interfaces. On interface is connected to an router which is connected to the internet and the other interface is connected to an internal gateway ...
0
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0
answers
156
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Route L2TP VPN from one ethernet port to another ethernet port on Ubuntu 22.04
Here is my setup:
Dual ethernet computer "router computer" { enp2s0, enp3s0 }
L2TP VPN server (which I control)
Ubuntu 22.04
All network gear is Unifi
Client computer that should not be ...
- 101
1
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0
answers
625
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QEMU VM network bridge in WLAN/Wifi
Host (Ubuntu 22.04.1 LTS) is connected through WLAN/Wifi.
My goal:
QEMU VM (Linux Kernel created with buildroot) has it's own local IP address, host can reach VM through this IP address
it doesn't ...
- 11
1
vote
1
answer
2k
views
Bridged network on Ubuntu Server 22.04.1 LTS
I'm trying to set up a couple of VM's with KVM/Qemu. They are supposed to be on the same network as the host. I have tried out a couple of guides found on the internet but to no avail.
Will someone ...
- 11
2
votes
1
answer
967
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LXC host losing internet access when bridging lxdbr0 with ens3
My LXC host loses access to the internet when bridging an interface between lxdbr0 and ens3. LXC guests also fail to access WAN when the bridging is effective.
My vps hosting provider provides a nic ...
- 41
1
vote
1
answer
438
views
Bridging LAN and wireless using netplan
I want to extend my network trough wifi to ethernet connected device. I have PC with Ubuntu 20.04 connected to PC2.
This is my setup:
-------- ------ ------ ------
|...
1
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1
answer
1k
views
Best way to have a network bridge with both my LAN and WAN (not AP) interfaces attached?
I have this configuration to put my LAN and WAN (not AP) network interfaces on the same bridge but I'm wondering if there is a better way to do it? Has anyone done this in a better way? Thanks.
I've ...
- 273
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0
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79
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KVM passthru network for VM private network
I have libvirt installed running default network setup. I created a VM using virt-manager and have it working on the NAT'ed bride interface.
I would like to add another Network interface that other ...
- 19
2
votes
1
answer
715
views
Netplan - bridge default spanning tree behavior
I'm not a Linux noob, but this is my first post on Ask Ubuntu.
If I am missing any key information, please let me know and I'll update the question.
OS: Ubuntu Server 22.04.1 x86_64
Kernel: 5.15.0-48-...
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0
answers
259
views
No Internet without opening FortiClient
I am running Ubuntu 20.04 inside Virtual box with network adapter attached to NAT:
I installed FortiClient 6.4.8.1056. I can no longer access internet without opening a VPN on FortiClient nor use a ...
- 642
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664
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When setting up a bridge for KVM, how can autoconnect for ethernet be disabled so the bridge still works after a reboot?
Ubuntu 22.04.1 LTS
Baremetal server, ssh access only
Using nmcli to configure network
Guides followed:
https://www.cyberciti.biz/faq/how-to-install-kvm-on-ubuntu-20-04-lts-headless-server/
https://www....
0
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0
answers
49
views
ethernet bridge questions
I have a Dell laptop running Ubuntu 20.04 that has both an ethernet and a wifi card. It is connected to a home router via wifi. I would like to connect a Raspberry Pi to the home network via the ...
- 21
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votes
2
answers
886
views
Ubuntu 22.04 netns with veth connected to bridge unable to ping gateway
Hey guys this is probably just something stupid I'm missing, but I'm having trouble setting up a net namespace to use for my VPN. The weird part is that this script/setup was working, and has suddenly ...
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1
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2
answers
2k
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How to bridge local LAN using Multipass
Looking for some assistance in trying to get the network bridging to work (consistently/more than once) when creating VMs with Multipass. I have tried so many things with the documentation I've found,...
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2
answers
7k
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Ubuntu 22.04 bridging with netplan doesn't work
I hope you can help me.
I'm trying to setup a network bridge adapter with Netplan to use it with my KVM guest machine. I followed a couple of tutorial, including the one on Netplan.io and so far none ...
1
vote
1
answer
899
views
Low performance with ethernet bridge
I have an Ubuntu 20.04 server with 2 NICs, both of which are part of (separate) bridges and one of them also handles VLANs. It connects to a managed switch and finally into a trunk port on my firewall ...
- 111
1
vote
1
answer
6k
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Bridge Wlan and eth0
My problem is the following, I am using a pretty complex network architecture for multi robotic operation. One robot is composed of different embedded computers and a switch, making a local network ...
- 11
0
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0
answers
1k
views
NetworkManager(nm-tray) network manager nm-tray connection lost no longer connected to 802-3-ethenet
My Lubuntu frequently popup this message, this doesn't mean to occur 100%, it usually occurs a period of time after booting, or it more likely occurs when the host win10 bootup from hibernation but ...
- 101
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1
answer
596
views
Virtual machine manager: Error starting domain: 'utf-8' codec can't decode byte 0xf9 in position 158: invalid start byte
Client: Ubuntu 20.04.3 LTS
Virtual client: 18.04 LTS
python 3.8.10
I need to create a bridge on Virtual Machine Manager.
I installed GNOME Boxes and I ran Ubuntu 18.04 LTS. It works fine without ...
- 11
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0
answers
463
views
Issue with bridge br0 DNS when I change the nameserver address 20.04
So basically I have an issue when I change my bridge br0 namerserver from 192.168.50.1 which points to a pfSense router, to my PiHole ad blocker. All clients get dhcp from the PiHole and are working ...
- 21
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0
answers
441
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other interface connected to linux bridge not receiving multicast packet
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
Bridge Info
sudo brctl show
bridge name bridge id ...
0
votes
1
answer
261
views
How to reset/reinitilize Ubuntu bridge
I have workable Bridge in Ubuntu 21.10 used by VM
This is definition of my Bridge.
#cat /etc/netplan/01-netcfg.yaml
network:
version: 2
renderer: networkd
ethernets:
enp4s0:
...
- 205
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votes
1
answer
63
views
problem on ubuntu bridges installation
I'm following the instructions, but it is not working.
Here is my original 00-installer-config.yaml file:
# This is the network config written by 'subiquity'
network:
ethernets:
enp2s0:
...
