Questions tagged [network-bridge]

Questions about configuring and using bridging interfaces

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How to reset netplan to default in 18.04?

I tried creating a network bridge through Virtual Machine Manager for KVM. Now my Ubuntu network connection depends on my Windows KVM being booted. Since creating this bridge when Ubuntu is booted ...
Relink's user avatar
  • 61
4 votes
0 answers
5k views

Cannot access an Ubuntu guest VM running under multipass on an Ubuntu Host from the outer network

Setup & Purpose I use a headless Ubuntu server as VM host running a nextcloud appliance using multipass. I want to access the VM from another Desktop System in the same network for testing. local ...
Armin Stross-Radschinski's user avatar
4 votes
0 answers
1k views

Where are all the network-bridges coming from, ifconfig shows me?

I'm using Ubuntu 18.04.3 LTS As I'm a developer, I have Docker, docker-compose and Virtualbox and Vagrant installed If I enter in a terminal: $ ifconfig I got a long list of network bridges. ...
Joergi's user avatar
  • 101
4 votes
0 answers
854 views

Enable packet routing from network interface eth0 to bridge interface

I have a Ubuntu server connect to LAN 10.1.200.21/24 (bond0), and an Macbook connect to LAN 10.1.200.50/24 (eno1) There are another bridge create by brctl addbr br0 in Ubuntu 10.3.100.1/24, and there ...
王予智's user avatar
4 votes
1 answer
2k views

bridge networking not working on ubuntu 16.04

I'm having a strange issue with kvm and bridged networking on several ubuntu servers running ubuntu 16.04. Bridged networking works fine on one of my servers, but doesn't work on my other three ...
Steven Jorgensen's user avatar
4 votes
1 answer
3k views

Disable hidden bridging between network interfaces

My question looks like a duplicate for this one, but since it has no answers, I will re-ask it with more info. Please take into account that I'm complete beginner in all this networking stuff. I can ...
d.wsky's user avatar
  • 41
4 votes
2 answers
5k views

Bridging LAN and WIFI using netplan not working and killing AP

I'm trying to extend my local LAN network via WiFi and would like all devices in the same network. The setup is as follows: DHCP/DNS server running inside the LAN separate PC linked to the LAN, with ...
M.Toppin's user avatar
3 votes
0 answers
1k views

How to enable Networking inside a `systemd-nspawn` container?

How can I get networking to work inside a systemd-nspawn container in Ubuntu 20.04? I want the container to get an IP address from local DHCP server, perform DNS lookups using my configured name ...
Enterprise's user avatar
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3 votes
2 answers
4k views

Define hostapd configuration settings on netplan

I recently discovered that netplan can manage hostapd accesspoints, but this is the extent of the example config: wlp1s0: access-points: "guest": mode: ap # no ...
Oxwivi's user avatar
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3 votes
1 answer
3k views

Share Internet to Ethernet network from wireless connections with netplan

A computer 1 (on Ubuntu server 18.04) is connected through wireless to an access point and through Ethernet to a switch. A computer 2 (resp. 3) is connected to 1 through the switch (resp. the wireless ...
guhur's user avatar
  • 131
3 votes
0 answers
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Network setup with Netplan and bridges

I'm having an issue where any bridge I create with netplan doesn't get an address. The following starts my NIC and I get a DHCP address: network: version: 2 ethernets: enp0s3: ...
DemomanCA's user avatar
3 votes
0 answers
7k views

netplan bridge for one static interface not working

I have a static ip address for interface eno1 which should become a bridge for kvm/qemu. My netplan configuration (Ubuntu 18.04) for the static ip looks like this and is working: network: version: ...
Alexander's user avatar
3 votes
0 answers
2k views

LXD profile. How could it be defined? [SOLVED]

I am not a sysadmin, so I am almost ignorant on this. I have a laptop connected via wlan interface and I want to use lxd containers and the network inside the containers. here https://insights.ubuntu....
Daniele Cruciani's user avatar
3 votes
1 answer
5k views

14.04 no internet connection when I up the bridge interface (for LXC container)

I have VM Ubuntu 14.04 32bit running in VMware Workstation on Win 10. I'm trying to set up the LXC container having its own IP address so I set the bridge interface in /etc/network/interfaces (tried ...
sferrka's user avatar
  • 31
3 votes
0 answers
3k views

network-manager, bridge and vpn

I have a shiny new system with Ubuntu 14.04 and I'm trying to get something configured which I think is reasonably simple: a bridge (br0) for KVM ability to use a VPN network-manager controlling it ...
MikeyB's user avatar
  • 356
3 votes
1 answer
501 views

How to bridge between two computers

I have this 3 machines with this setup Computer1----Computer with Ubuntu 12.04-----Computer2 Computer1 have IP 192.168.10.1 and Computer2 have 192.168.10.10. My computer with Ubuntu have 2 ethernet ...
capzulu's user avatar
  • 41
2 votes
0 answers
778 views

Enable BRIDGE network for Virt Manager in Ubuntu 21.04 with a Wireless Network only

I've been using Boxes without any problem, the only missing functionality is to access the network outside the guest environment (Boxes Sandbox), from/to another computer in the same LAN. Because ...
logicito's user avatar
  • 391
2 votes
0 answers
109 views

Bridged KVM guest crashes other guests on Ubuntu Desktop 20.04

I am new to Ubuntu, but am running Desktop 20.04. I have installed KVM and configured bridged networking per the following two links based on my understanding that the legacy networking service has ...
matt01's user avatar
  • 21
2 votes
0 answers
893 views

Trouble with Ubuntu 18.04 netplan bridge on hetzner server

i need some help with an hetzner server, netplan and a network-bridge.. I want do setup an kvm under my ubuntu 18.04 hetzner server, who is reachable from outside. So i need a network-bridge. So i ...
NETFLOX's user avatar
  • 125
2 votes
0 answers
137 views

Using 2 wifi adapters to create a hotspot

I'm trying to create a wifi hotspot with an external wifi apdater. What I have is an onboard wifi (wlan0) that is connected to the internet and an external one (wlan1). What I'm trying to do is bridge?...
azriel's user avatar
  • 21
2 votes
0 answers
1k views

ubuntu 20.04 reboot hanging - clamping QRV from 1 to 2

my system is ubuntu 20.04, I use it mainly for LXD and Juju development.. I noticed the system asking for a reboot so I obliged.. but it is not rebooting and instead when I hit [esc] to watch the log ...
Erik's user avatar
  • 260
2 votes
0 answers
240 views

Open Virtual Switch for bridging Physical network On Ubuntu Server 16.04

I am proof of concept for a client, the requirement are the following: Stretch across 2 site the ERP network (stretched VLAN), this is needed due to dated machinery that have to talk to a particular ...
MEMA's user avatar
  • 31
2 votes
1 answer
7k views

Why does host and bridge get an IP but not the virtual machine?

I'm struggling to connect my KVM virtual machine to the local network. $ brctl show br0 bridge name bridge id STP enabled interfaces br0 8000.4c5262097e59 yes ...
Christoph's user avatar
  • 181
2 votes
1 answer
5k views

How to troubleshoot network problems for virtual machines connected via a bridge (Ubuntu 18.04)

On my server (Ubuntu 18.04 LTS) I am running a KVM virtual machine which has been running fine for over a year or so but recently - probably because of some update - the virtual machine would lose ...
Christoph's user avatar
  • 181
2 votes
0 answers
167 views

Created bridged interface but I can't connect through it

Just to preface, I'm trying to do this on an Ubuntu Server 18.04.2 that is a VirtualBox guest on my Win10 machine. Alright, on my Ubuntu guest, I'm trying to create a bridge interface for enp0s3 (...
beechfuzz's user avatar
2 votes
1 answer
3k views

Working internet access / network bridge on Ubuntu running virtual machine?

Please consider the following scenario. Host: Ubuntu 18.04 LTS desktop with latest updates. QEMU version 3.1. Network managed by network-manager with working wireless connection to the Internet. $...
mgw's user avatar
  • 134
2 votes
0 answers
659 views

Bluetooth Network access point setup

I want to setup a ubuntu device as bluetooth NAP, then other linux device(Raspberry pi or UDOO) can access the internet by connecting the ubuntu device using bluetooth. My ubuntu device is server iso,...
seng199898's user avatar
2 votes
0 answers
2k views

can we do Bridge Networking for laptop wifi?

I want to create virtual machine on the top up of my laptop with the help of KVM. I have installed all the neccessory packages required for it. I want to setup Bridge network so that my virtual ...
RjV's user avatar
  • 428
2 votes
0 answers
1k views

Can't load websites when bridging enp0s3 with static IP

So I was trying to bridge the enp0s3 in a VM in ubuntu 16.04 LTS (64 Bit). The VM gets its internet connection through "bridged adapter", no NAT. If I go with the DHCP configuration everything works ...
Kloud's user avatar
  • 21
2 votes
1 answer
750 views

Cloud in a Box Issue - LXD static host with DHCP bridge and static LXD host reservations

I have a host (Openstack Newton data center controller) with the following services running on it: Maas-Rack-Controller (bridge DHCP) Cloudify (multi-cloud management POC) Juju (cant bootstrap yet...)...
spyderdyne's user avatar
2 votes
0 answers
2k views

Enable eth0 without plugging cable to connect to virtualbox bridge

I'm using Ubuntu 15.04 with NetworkManager. I have internet connection on wlan0(dhcp, 192.168.1.0/24) and static ip on eth0(local network, 192.168.124.1/24). On my virtual machine in VirtualBox i ...
Invidian's user avatar
  • 514
2 votes
0 answers
1k views

Ubuntu 14.04: with bridge on wlan, no internet on kvm guests

I'm trying to be a "high-lander" sticking to KVM plus virt-manager to manage my VMs. But it's about a week I'm around trying to create a bridge that works for using with my VMs. I tried first tried ...
luis's user avatar
  • 91
2 votes
0 answers
419 views

Unable to restart my network services

I cannot restart my networking services by using the restart command. Earlier it was working fine but today I created a lot of mess by giving IPs removing and all. And now when I enter the restart ...
Waqas's user avatar
  • 29
2 votes
0 answers
100 views

Problem linking WLAN to Ethernet

So I've been trying to use a laptop who's wifi card doesn't work properly, by using a Lenovo V570 laptop with Ubuntu 12.04 to bridge the two networks. I changed my ethernet network to "Shared to other ...
Daniel Braginsky's user avatar
1 vote
1 answer
241 views

SSH into Virtual Machine thorugh another PC in the same network, Creating Bridge Network

I created a Virtual Machine using Virtual Machine Manager. I am using a Ubuntu OS(.iso) for the VM. After creating a VM it automatically assigns a IP to the VM. I can only SSH from the host Machine to ...
Jdszoua29's user avatar
1 vote
0 answers
204 views

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 ...
Dan-Erik Lindberg's user avatar
1 vote
0 answers
440 views

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 ...
sadkin's user avatar
  • 11
1 vote
1 answer
278 views

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 (...
Tuna-Fish's user avatar
  • 121
1 vote
1 answer
632 views

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 ...
Braininfection's user avatar
1 vote
0 answers
1k views

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 ...
max5432432's user avatar
1 vote
1 answer
4k 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 ...
mccleod48's user avatar
1 vote
1 answer
2k 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 ...
Knickers Brown's user avatar
1 vote
1 answer
1k 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 ...
Sahbi's user avatar
  • 111
1 vote
1 answer
703 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 ...
Bart96's user avatar
  • 11
1 vote
0 answers
240 views

Bridging Thunderbolt Ethernet Connections

Can Ubuntu bridge ethernet (thunderbolt networking) connections/adapters? The goal is to bridge two hosts each with a thunderbolt adapter; when you have one host, and you connect to host 2 and host 3 ...
littlefooch's user avatar
1 vote
0 answers
156 views

Problem Setting Up a Network Bridge for OpenVPN Server

I've installed bridge-utils and have followed several articles for creating DHCP to my LAN with OpenVPN. It appears that I have bridge set up correctly but when I start OpenVPN server I get this ...
Wt Riker's user avatar
  • 131
1 vote
0 answers
101 views

Wifi + Wired Hot-spot possible?

Running Ubuntu 20.04. I want to setup a wifi hot-spot which distributes IPs by dhcp. Furthermore I want to connect to this 'hot-spot' by wired ethernet connection. So the wired connection shall be in ...
Maik's user avatar
  • 111
1 vote
1 answer
235 views

Isolate hosts on Netplan defined Bridged network

I've Ubuntu 20.04 LTS for Raspberry PI and I've created a wireless access point using the snapon wifi-ap package. That allows hosts to attach to a 192.168.8 network and works beautifully the Ubuntu ...
Simon Banks's user avatar
  • 1,337
1 vote
0 answers
859 views

Netplan bridge master getting a static IP address instead of the bridge

I am trying to configure a bridge for KVM guests and host connectivity. The bridge is never configured right, the physical NIC always ends up getting the static IP address and the bridge is assigned a ...
FabLee's user avatar
  • 11
1 vote
1 answer
144 views

Using Ubuntu as router for CCTV

I set an system in my house and I have some issues. I am using CCTV in my house, the DVR is located far from my internet for plug it by cord, so I toke an unused Raspberry pi 3 that I had and set him ...
Ad Bid's user avatar
  • 11