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Questions tagged [network-bridge]

Questions about configuring and using bridging interfaces

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I want to share my files and wifi simultaneously to my home router

I want to share my files and at the same time have my router receiving internet connection from my Ubuntu laptop. The problem I get is because if I share my network from PC I must connect the Ethernet ...
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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 ...
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Ubuntu VM host with no access to LAN

I have an issue where the VM host is not able to access the internet after adding a bridge for LXD/LXC containers. The LXC containers are assigned LAN IPs. There seems to be two options to fix the ...
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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 ...
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Testing TCP Client on Ubuntu VM from Android Mobile on Ethernet

I am developing a TCP Application. My administrator has blocked TCP listening on my Windows PC. So, I am using an Ubuntu 20.04 VM on the virtual box for developing and testing my TCP server ...
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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 ...
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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 ...
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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 ...
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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: ...
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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: ...
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Ubuntu 20.04: when adding bridge via netplan, bridged interface remains routable, routing entries duplicated

OS: Ubuntu 20.04.3, all the latest updates installed. I am trying to create a bridge interface, to enslave current (eno1) Netplan configuration: # This is the network config written by 'subiquity' ...
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How to connect Ubuntu 21.10 to tagged VLAN (netplan)

I have network VLAN: 4005 MTU: 1400 Subnet: 157.XX.XX.64/27 Gateway: 157.XX.XX.65 Netmask: 255.255.255.224 Broadcast: 157.XX.XX.95 I want to configure netplan Ubuntu 21.10 to IP 157....
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Can a slave interface have an IP address?

I created a bridge and assigned a physical interface to it as a slave. Now both have the same MAC and IP addresses. I thought only the master would have an IP address. Is something wrong ? 2: enp1s0: ...
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Zerotier and printer

I have a private Zerotier SD-WAN (10.99.99.0/24). Some of my clients also use a local net 192.168.0.0/24. And there is also a network printer with 192.168.0.101. Since Zerotier does not have a client ...
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Ubuntu 20.04 - Bridge KVM

I am using Ubuntu 20.04.3 and libvirt for virtualization. The default bridge works well with NAT and I am able to establish internet connections. With a bridge to have a VM on the same network, I ...
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Is it possible to share a wifi connection through ethernet while keeping the same DHCP server?

I need to add a Jetson Nano to a robot and I'd like to use a single wifi interface to communicate outside of the robot. My network setup should look like this: Server <--eth--> Router <--wlan-...
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how can I configure 2 network interfaces in KVM?

i'am pretty new to KVM and I hava already configured the network bridge. now i need to add an additional D-VLAN100 network device. how can I configure 2 network interfaces? do i need also to create 2 ...
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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 ...
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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 ...
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Bridge network suddenly stopped working (18.04)

My Desktop is getting weird. I have Ubuntu 18.04 with a bridge set up (for my gaming VM) and until yesterday all worked fine. Booted up today, no network connectivity. I have no idea where the issue ...
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What's the proper command that generates a specific route that I should add to ubuntu?

I'm trying to understand why there aren't any linux vm that can connect to internet if emulated with bhyve (it's level 2 hypervisor which run on freebsd 13). Instead,if I use vm-bhyve (a wrapper for ...
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Network bonding USB and internal NIC's?

Is it possible to bond 2 identical onboard NIC's and a USB network adapter? Currently I have the onboard networks bonded together in mode 6 no issue, HOWEVER if I try to add the USB network adapter to ...
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How to enable Promiscuous Mode permanently on a NIC managed by NetworkManager?

I'm trying to bridge two of several NICs to act like a switching hub. To do so, need to enable the promiscuous mode on the NICs. Even if I set it to “promisc on” with the “ip link” command, the ...
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Bridging static LAN with outside dynamic WLAN

long time leecher first time poster so excuse me for beginner mistakes, i'm also tired after trying for hours: I'm trying to set up a bridge between a static LAN (internal network) and a dynamic WLAN (...
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Multiple virtual network interfaces with own public IPs

I'm currently trying to set my server/old computer up, to run multiple different services, each with a different Network interface, so I can forward them to different DynDNS's via DDclient. However, ...
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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 ...
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LXD Bridge Prevents Network Access

Explanation before the question I am trying to configure LXD on a raspberry pi using Ubuntu Core 20.04. It's local IP is initialized as 192.168.2.64. Before I run lxd init it was connecting to network ...
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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 ...
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Bridge two (virtual) NICS to act as a switch - Ubutnu Server

I am running a virtualized Ubuntu Server 20.4 (Hyper-V). In this VM there are two NICS (each bridging real NICS X550), which I am trying to bridge, to act a switch", meaning if I connect a cable ...
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dhcp fails on br0, new configuration

I am trying to create a bridge for xen virtual devices to connect to. The br0 appears to be up but it will not pull an IP and the ipv6 link local on the br0 cannot be reached either root@Inspiron15:/...
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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 ...
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Is there a way to create an Open vSwitch internal port with netplan?

As per the Title really. I can't work out if there's a way to do this or not. The only mention of ports in the docs are "patch ports" as pairs of ports. The example shows the use of these ...
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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 ...
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Ubuntu 20.04 WiFi access point without subnet/DHCP server

I have Mac Mini with Ubuntu 20.04 server installed (so no GUI). And want to use it as a WiFi access point, without NAT/DHCP server (so, given that main Mikrotik router is 192.168.88.1, both Mac Mini ...
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Unable to enable SRIOV for a Ethernet port [duplicate]

I get a permission denied error when I run the command sudo echo '7' > /sys/class/net/eno99/device/sriov_numfs This is the error: bash: /sys/class/net/eno99/device/sriov_numfs: Permission denied ...
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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 ...
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Ubuntu Server 20.04 LTS not reachable

my Ubuntu 20.04 LTS server looses its inbound LAN connection after some days of operation. The outbound connection works: I receive status e-Mails from that host. Bridged containers work as they ...
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do 20.04 bridges work? what's amis with mine? do i need a special kernel?

Trying to setup a bridge for libvirt using 20.04 netplan. Network is fine before trying to define a bridge, but doesn't come up with my bridge definition. What am i missing? Do i need a special kernel?...
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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 ...
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Ubuntu 20.4 KVM bridged network now working on guest

I am in the process of migrating a machine from Debian to Ubuntu 20.4. Everything seems to be working fine other than I am unable to get KVM VM's to connect directly to the network. Switching to 'NAT' ...
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hostapd vs netplan: wlan0 not added to bridge at boot

Like many people, I'm using a Raspberry Pi 4B running Ubuntu 20.10 arm64 as a LAN/wifi bridge, using hostapd and netplan. Everything works fine except that the bridge is not configured correctly when ...
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Ubuntu 20.04 - Wake on lan does not work on a bridged interface

I am using Ubuntu 20.04 Server. Using a basic DHCP setup, I was able to use WOL with no issues. I had to build a service to ensure ethtool -s enp1s0 g stuck after a reboot. WOL worked great. Now I ...
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Transfer files via USB 3 bridge

I want to transfer files between 2 machines that run both Ubuntu 20.04. I have an ethernet connection via cross-over patch using samba, but the speeds are horrible. I want to test a USB connection ...
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KVM Bridge on Ubuntu 20.04 on Raspberry Pi 4

I cannot get networking inside a guest VM to work with KVM on a Raspberry Pi 4 8GB running the official Ubuntu 20.04 image. I have my networking configured correctly, as far as I can tell. And I'm ...
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What do these iptable rules mean?

These: sudo iptables -t nat -A POSTROUTING -o tun0 -j MASQUERADE sudo iptables -A FORWARD -i tun0 -o wlan0 -m state --state RELATED,ESTABLISHED -j ACCEPT sudo iptables -A FORWARD -i wlan0 -o tun0 -j ...
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Ubuntu 20.04 KVM, netplan with bonding, vlan and bridges

I am preparing migration of an UBUNTU 16.04.7 server with 5 NIC's to 20.04. My testing server has 4 NIC's: 2 onboard and 2 as Intel Pro NIC. Configured in 00-installer-config.yaml. The first NIC is ...
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Netplan with bonded NICs and VLANS and bridges not working

I have a netplan issue. Config is below. Bond seems to be working but I cannot connect to the network VLAN128 (br128) which is bridged on bond. The hardware and bonds worked before the server upgrade ...
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LXD - Assign public IP to a container

I have several static public IP addresses on my host machine. I want to assign that IP to a certain container, but I cannot really find any updated info about that. I tried to create a new network, ...
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Ubuntu as a Router

I am working on a project that uses a computer with a touch screen. This computer has 2 Ethernet ports. Because of licensing problems, we need to use Ubuntu. The HMI program we created with Java ...
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Netplan inconsistent indentation Ubuntu 20.04 server

I am having an inconsistent indentation problem in a netplan configuration. I would like, if possible, someone to explain to me where I'm going wrong. Thank you. The error is: /etc/netplan/50-cloud-...
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