Questions tagged [network-bridge]
Questions about configuring and using bridging interfaces
392
questions
2
votes
1
answer
30
views
Docker container fails to answer respond to HTTP request from host machine
I want to deploy an API on a server (Ubuntu 18.04) with Docker (container: Ubuntu 22.04). I previously deployed the API with the same config on another server without any issue.
While being built ...
-1
votes
0
answers
26
views
Windows 10 LAN connected to Ubuntu but no internet access?
I have a laptop running Ubuntu, connected to the internet via WiFi, and another PC running Windows 10 but without a WiFi card, so I must use Ethernet.
I tried to create a bridge between the two by ...
0
votes
0
answers
56
views
Netplan Bridge Does Not Support Multiple Interfaces
Issue:
When bridging multiple NICs using netplan, client hosts connected to the
bridged NICs cannot communicate with the gateway server. The goal is to have all
bridged NICs share the same static IP ...
0
votes
0
answers
18
views
Why isn't the bridge network starting?
I need to create a bridge network on my Ubuntu host
I followed tutorials like this to create a bridge interface in nmapplet.
I made sure to remove all other VPNs, bridges, and even shut down the ...
0
votes
0
answers
73
views
How to bridge a wireless to a ethernet interface
I'm trying to get a wifi hotspot running on ubuntu and bridge it to the ethernet connection, so that the devices on the wifi appear on the same network, use the router's dhcp, and are able to access ...
0
votes
0
answers
24
views
Success at creating a bridge of two ethernet adapters but one won't connect
Ubuntu 22.04.1 LTS
I succeeded at creating a network bridge between the onboard ethernet and one on a PCI card. So far everything looks good but the pci ethernet won't connect to the outside device, ...
0
votes
0
answers
48
views
Why does my netplan configuration not work?
I am using Ubuntu20 server, and its default Netplan. The server is a bare metal under OVH management, so I have very limited control over the changes I can make on the network interface.
I have ...
0
votes
0
answers
47
views
Strange behavior of the network bridge
I created a network bridge (for libvirt) as follows:
nmcli con add ifname br0 type bridge con-name br0
nmcli con add type bridge-slave ifname enp3s0 master br0
nmcli con mod br0 ipv4.addresses ***
...
0
votes
0
answers
181
views
Creating network bridge between main machine(windows) and ubuntu server(hp g3 800 sff without wireless compatibility) not working as expected
URGENT I have a windows main machine that connects to the internet via wifi and a ubuntu server that cannot connect to the internet via wifi as it does not have this capability. I have discovered ...
0
votes
1
answer
197
views
Simple Layer 2 Bridge
I’m looking to make a very simple WiFi to Ethernet Layer 2 bridge. The WiFi dongle I have supports AP mode and adding 4addr has been done successfully. Is there a simple script or process to creating ...
0
votes
0
answers
39
views
Some meta state when create bridge on 22.04
It is said that if the system use NetworkManager, you'd better use nmcli, or there may be conflictions between different management systems.
Suppose there is an ethernet connection named eno1 whose ip ...
0
votes
0
answers
47
views
netplan config - connecting multiple PoE devices to ubuntu server with PxE ports
I have an asrock ep2c602 motherboard server with PxE ports. The server is connected via ethernet to the internet router. I want to connect some PoE devices to the server and make them available in the ...
0
votes
0
answers
525
views
Networking.service fails with Ubuntu 22.04
Under Ubuntu 22.04 my networking.service is failing. Apparently because [email protected] is failing. But all networks are up. I use /etc/network/interfaces to set up the networks. When I try to bring ...
1
vote
1
answer
130
views
Ubuntu as Wifi extender
I'm trying to use my Ubuntu server ( Ubuntu 22.04.3 LTS) as a wifi extender, but am having problems setting it up.
So I want to connect to the Wifi adapted on my Ubuntu server and all traffic should ...
0
votes
0
answers
45
views
How to reset the entire networking config changes?
Well, after I crashed into a not-helpful tutorial (about KVM networking) and not-helpful tech guys on Serverfault, I ended up totally spoiling my Ubuntu environment, lmao. Like, I ran these commands ...
0
votes
0
answers
138
views
Automating Creation of VM through python-libvirt and Providing SSH access
For a Project I am trying to automate the Process of generating Virtual Machines through libvirt using python-libvirt. Using the following dump.xml I create a VM.
dump.xml
<domain type="kvm&...
1
vote
1
answer
223
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 ...
0
votes
0
answers
60
views
UBUNTU KVM bridge problem
I'm going crazy with a bridge problem on KVM.
I had an Ubuntu 22.10 server with KVM hosting a bridged host that got an IP from the same network as the host.
After updating to UBUNTU 23.04 it doesn't ...
0
votes
0
answers
46
views
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 ...
0
votes
0
answers
184
views
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 ...
0
votes
0
answers
18
views
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....
0
votes
0
answers
330
views
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: ...
0
votes
0
answers
208
views
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....
1
vote
0
answers
203
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 ...
0
votes
2
answers
2k
views
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 ...
0
votes
0
answers
279
views
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 ...
0
votes
0
answers
199
views
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 ...
0
votes
0
answers
106
views
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 ...
0
votes
0
answers
548
views
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, ...
0
votes
0
answers
198
views
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
vote
1
answer
2k
views
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....
1
vote
0
answers
431
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 ...
0
votes
1
answer
596
views
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, ...
0
votes
1
answer
133
views
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 ...
0
votes
1
answer
836
views
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://...
1
vote
1
answer
267
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 (...
0
votes
1
answer
610
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
617
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 ...
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 ...
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 ...
2
votes
1
answer
1k
views
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 ...
1
vote
1
answer
623
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
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 ...
2
votes
1
answer
1k
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-...
0
votes
0
answers
371
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 ...
0
votes
0
answers
852
views
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
votes
0
answers
58
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 ...
0
votes
2
answers
1k
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 ...
1
vote
2
answers
5k
views
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,...
1
vote
2
answers
9k
views
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 ...