Questions tagged [bridge]

Bridge is the term used in computing to describe a device that connects two or more networks that use different protocols or equal to two segments of the same network using the same protocol, for example, ethernet or token ring.

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Ubuntu trunk forwarding or bridging between two physical linux interfaces eth0 and eth1 - OpenvSwitch or etc

I want to learn, if it is possible? and how to configure, a ARM based Ubuntu Server system as a bridge between two physical network interfaces to pass all Vlan trunk traffic through eth0 and eth1. ...
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How does Linux determine the default MAC address of a bridge device?

How does Linux determine the default MAC address of a bridge device? I know it is the same as "bridge id" from brctl show, but how is it calculated? Is the MAC address supposed to change ...
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How to use a Wireless ADSL modem Router as a Access Point?

I have two modes similar this: I live on the first floor of an apartment. Also one of the mentioned modem is inside my apartment (connected to the ADSL port) and has internet as well. I connect to it ...
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Docker networking not working with bridged host interfaces

Here's the setup: (docker host is in between to monitor traffic via ntopng) Router <---> Docker Host <---> PC <192.168.1.1> <192.168.1.20> ...
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Wifi Extender to routing a public Wifi via ethernet in a local router

I spent last week to setup the topic of this question without success. I read a lot of articles and questions but I couldn't find a solution (or maybe I couldn't apply what I read...). I have a RV (...
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How do I set up an Arris NVG558HX (Verizon) router/gateway so that my existing TP-Link Omada router can remain in service?

I have a home network that uses a TP-Link router, switches, and access points. I would like to be able to connect them to an Arris NVG558HX (Verizon) router/gateway. I currently use a DSL modem/...
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How do I make a stateful bridge filewall with nftables?

The nftables wiki has an example, but it doesn't seem to work for me. The page says that it should work since kernel 5.3, but it says "protocol error" when I try the exact commands from the ...
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Configuring pfSense for IPTV delivered via separate VLAN on WAN link

I am trying to set up pfSense as my primary Internet router, replacing the provider router. Basic Internet connectivity works as it should: configure the external interface as a DHCP client, configure ...
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Connect Portable Cluster to Different LANs Dynamically

I just got a job that requires me to relocate every few months. I can't take my homelab rack with me so I'm building a small portable ITX TrueNAS cluster (microwave size). I don't know much about ...
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Bridging an open public wifi (xfinitywifi) to a virtual machine

I have a virtualbox VM that I want to bridge xfinitywifi to. I'm connected to ethernet, and then xfinitywifi using a pcie wifi (so I can't do USB passthrough for the wifi). Using windows 10 as host. ...
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tcpdump doesn't capture WiFi-to-WiFi traffic

I have configured a transparent bridge on a network that should capture all the traffic of its connected devices with tcpdump (see diagram 1). The bridge is configured on a Debian 11 server and has an ...
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Devices in bridged network don't see eachother

I have an IoT device with LTE connectivity, 2 ethernet ports and wireless antenna I'd like to use as a LTE router, meaning I would share the LTE connection to wifi and both ethernet ports. It is ...
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Shell script to replace config file if server fails to go online after config change

So, my situation is as follows; Due to CoViD restrictions I can't physically access a remote (debian 11) production server, but I'm forced to add/activate two physical network ports (NICs) on that ...
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Nested guest VM on ESXI is not able to access internet but can access host

I am running x86 Ubuntu 20 on ESXI 7.0 (lets call this as my host VM). On top of Ubuntu VM, I am launching ARM64 RaspiOS using QEMU (this is my guest VM). So you can say I have nested VMs. From my ...
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Using a 4 NIC mini-server as a switch while using bond mode 4

Already tried pulling answers out of the debian docs, but it's a rare combination, so I'm asking this here; A small business I work for has a mini computer, running a minimal Debian 11 and some LAN ...
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VMware - Can't ping host machine and VM even in bridged mode

I have set my Ubuntu virtual machine in bridge mode so that my VM could communicate with my host machine but I can't seem to receive any ping replies from both ends. My host machine is windows 10. ...
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MODEM VDSL and wifi repeater/bridge TP-Link TL_WR702N won't work

I have a VDSL modem "model VRV9518VAC23-A-OS-AM", also I have a TPLINK702n i want to use as repeater/bridge. I tried every possible way, and I can't get it to work. Two or three times I ...
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Info about LXD virtual hosts adapters

How can I get info about relation of container name and virtual host adapter? Virtual adapters are 8: veth5SUQQG state UP @if7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 master lxdbr0 state ...
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Device communicates with server through bridge, unable to capture all packages

I'm trying to reverse engineer a device to be able to access its API locally. Currently it is communicating with an online server, where I can log into to see its data. Set up The device connects ...
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What will be the IP of the following bridge interface?

I have a system that currently has 2 network interfaces, eth0 (ethernet cable) and wlan0 (internal wifi). eth0 interface has IP of 192.168.1.100 which is given by my router and wlan0 has IP of 192.168....
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Why the bridge0 has a Ethernet port address? it refers to what?

I use ifconfig -a list the bridge0 detail information: bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 index 7 eflags=41000000<ECN_ENABLE,FASTLN_ON> ...
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Create a bridge between Qemu NIC and my PCs NIC

I want to create a nic bridge between my qemu-Ubuntu-VM and my Windows10-Host. In VirtualBox, it's easy peasy: I can get the Qemu-Ubuntu-VM running just fine with qemu-system-x86_64w -accel whpx -hda ...
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Communication between network interfaces in different subnets LEDE openWRT

i'm using TP-Link MR3220v2 with its Openwrt firmware. what I would like to do should be simple, but I am not succeeding. i have 3 devices in two different subnets and i would enable communication ...
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network bridge query with hamachi?

I have an embedded hardware in one city connected with my mac laptop via ethernet. I wish to connect that hardware to the server in a different city. The server is not on the internet but I have a ...
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How to disable windows desktop 10 hotspot's dhcp server?

I am connected via ethernet to a router which gives me an IP via dhcp. I want to share that dhcp of the real router via wifi of my laptop to devices around. My plan is to bridge ethernet and wifi, get ...
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Why doesn't my bridge transfer DHCP broadcast packets?

I am trying to set up my debian bullseye desktop machine, which is connected through ethernet, as a wifi access point. I would like to use my ISP's router (freebox delta, FWIW) DHCP stuff. I already ...
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Where does this PCIEX4 share bandwidth - LGA1200 or Z590?

In the manual to this ASUS Prime Z590-a motherboard, there is a page dedicated to shared bandwidth: What is strange to me is that the PCIEX4 is unspecified. Does this have lanes directly connected to ...
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Connect a USB storage "read" to one computer and "write" to another computer

I have a near identical problem to this question right here: Connect USB storage device to 2 computers at a time He asks if it would be possible to connect a USB drive to a Raspberry Pi, and to his ...
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802.1x renewals under linux with a bridge device

I have a Fedora 33 linux machine running in an 802.1X environment. NetworkManager is configured to have an ethernet device doing the 802.1X part and a bridge device configured to do DHCP. (I'm using ...
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wired connection to WDS-bridged router

I'm trying to make a WDS bridge between two routers. The relay router now repeats the signal from the main one through wireless, but I can't seem to make a wired connection via that relay router to ...
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Can I use one routers IP blocking feature behind another router connected to the internet?

Situation: My ISP's router (Sky Q) which I have to use to connect to the internet has terrible security features. I would like to be able to block specific IP's on my home network from connecting to ...
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Bridge a Netgear C6300BD (Telstra Gateway Max) to a Telstar Smart Modem Gen 2 DHCP returns wrong default gateway address

The set up is : 1. Telstra Smart Modem Gen 2 Main Router connected to internet 192.168.100.2 DHCP 192.168.100.3-239 2.4GHZ Wifi (not reliably working) 5GHZ Wifi (working) 4 Eth ports ...
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Unable to delete network bridges on Fedora 33 & Docker

I am using Docker 20.10.7 on Fedora 33: $ uname -r 5.12.8-200.fc33.x86_64 $ docker -v Docker version 20.10.7, build f0df350 When trying to create a new docker network, I get the following error: $ ...
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Doubts on Mac address of Guest OS configured in bridged mode

I'm running Kali ( guest OS ) in workstation pro. My host OS is windows 10. Guest OS is configured in Bridged networking mode. Consider the following parameters of :- Guest OS - IP_G:MAC_G Host OS - ...
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Connect/bridge two networks?

👋🏼 Summary I have two networks, that I wan't to connect to each other, so I can connect from one machine on one network to another machine on another network. How things are At my office, I have a ...
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Cannot receive IP from router bridge

I have a "router" that is basically a computer with 4 network ports and Linux Centos installed that I will be calling Centos-Router from now on. My operator cable router is configured with ...
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Is it possible to connect to the internet over wifi, but connect two computers over ethernet to pass files or other data in Windows 10?

I'm trying to share an internet connection from a host computer's wifi to another computer connected via ethernet while also allowing both computers to directly talk to each other over the wire. The ...
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KVM / QEMU - Confused by bridge ip address (on Debian host)

I have followed a few guides to getting a bridge setup on my Debian VM host The most useful I found to be this: https://linuxconfig.org/how-to-use-bridged-networking-with-libvirt-and-kvm I have read a ...
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Share wifi connection with ethernet

I have PC1 and PC2, PC1 is connected to wifi and PC2 is connected to PC1 with ethernet, I set PC1 wired connection with the option "Shared with other computer". With this configuration, my ...
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QEMU: SYN/ACK ignored on host in host-only networking with tap interface

I'm trying to set up host-only networking between my Linux host (running Fedora 33) and a QEMU instance (a fork for Xilinx devices), more specifically between a bridge interface (host) and a tap ...
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Raspberry Pi as WiFi Bridge on Same Subnet

I currently have my Raspberry Pi 4B setup as a bridge to provide wifi access to a separate ethernet device that can't do wifi. I used Option 1 from the guide here: https://willhaley.com/blog/raspberry-...
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Gateway bridged mode

n00b question: I have a gateway from my ISP that lacks features and in order to access any advanced features whatsoever you must login to their site where settings are stored on their backend which ...
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Shared internet to network bridge slows receive on win10

As soon as internet connection is shared to network bridge, receive is slowed down by 70-90MB/s. Send is unaffected. unshared shared On 1809 and on 20h2 its 10-20MB/s faster. Latest and oldest drivers ...
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set different IP address for Vms in bridge mode in Virtualbox

I set up 3 Vms in Virtualbox all in bridge mode. guests can ping the host but they have the same IP addresses, so how can I change it? ( how can I ping one VM from another VM) note: I create Vms with ...
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Windows Task Manager Cannot Get Network Usage After Create Network Bridge

My task manager is okay before I create bridge for my home network. After create a bridge between Wifi and Ethernet like this My network usage totally cannot show on task manager, But internet and ...
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What is the difference between port and interface?

Below command: ~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic ~$ ~$ ~$ ~$ ~$ sudo ovs-vsctl add-br ...
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Provide a /24 subnet for a bridged VirtualBox guest

On a host running VirtualBox, I have a bridged virtual machine requiring more than just one IP address as well as several virtual network devices collected in a VLAN. Unfortunately, VirtualBox cuts ...
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How to automatically enable wifi 4addr (WDS) mode before connecting to specific SSID or network?

I have a laptop on which I have setup a bridge interface between the Ethernet and WiFi devices in order to connect non-WiFi devices to the network before they go into their final, wired, position. I ...
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Mac OSX forward internet sharing through VPN

I have been trying to forward packets from my internet sharing interface (bridge100) to my tunnel interface (VPN Software creates utun2) using the following: nat pass on utun2 from bridge100:network ...
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Internet connection via cable to wifi router in bridge mode works for some, but not all computers

a curious problem is driving me crazy here. I am using a secondary wifi router set to bridge mode to access internet from the primary wifi router. My desktop PC is connected through cable to the ...
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