Questions about configuring and using bridging interfaces

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VirtualBox inside LXD cannot communicate with LXD's host

I am running an Ubuntu server (server-box), which isrunning an LXD container (lxd-box), and LXD is using an ethernet bridge which I set up using this guide. lxd-box is running an instance of ...
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VirtualBox: No IPv6 in Ubuntu guest (Win10 host)

I'm using VirtualBox with Windows 10 as host and Ubuntu 16.04 as guest. In general it's all working well but a test for IPv6 connection tells me that I can't connect to IPv6 sites, leading to some ...
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1answer
15 views

Why my bridge cannot be found?

I am setting a bridge on a fresh Ubuntu 16.04 install and it fails at "finding the device". It is configured in /etc/network/interfaces: auto testing0 iface testing0 inet static bridge_ports none ...
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1answer
22 views

Manual network IP leads to spotty connection

I'm running 14.04 via VirtualBoxVM with my network in Bridged mode. DHCP works great, setting a manual address used to work fine but today it's acting up. DHCP values: IP: 192.168.1.8 Netmask: 255....
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42 views

libvirt pfSense guest not able to obtain WAN-ip (DHCPv4) on bridged NIC

I'm trying to achieve having an Ubuntu host machine, with only one NIC, with multiple guests (VM's) and all of them (the guests) connected to the pfSense-guest. What I think I need is 1 virtual NIC, ...
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Difference between bridge connection & NAT

I have a serious issue with ubuntu server opened up in oracle virtual box The problem is if i choose NAT then I'm able to ping & download updates using command but not able to access ip address ...
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Network Adapter type causing trouble

if i choose network adapter type as Intel PRO/1000 MT Desktop then I don't get ip address & when i choose other network adapter then ip is shown but the server is unable to receive internet, to ...
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16 views

Unable to access network in the KVM guest

I am working on a Ubuntu 14.04LTS server. I installed KVM according to the guide https://help.ubuntu.com/community/KVM/Installation Created a bridge according to https://wiki.ubuntu.com/...
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55 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....
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1answer
57 views

Prevent vlan and bridge interface rename to renameX form

Ubuntu 16.04 server. Almost all vlan and bridge interfaces are renamed to the form renameX. How to prevent, or control the way interfaces are renamed? I know that this is done by systemd, I know how ...
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1answer
37 views

share wired connection to wifi adapter ( external ) [duplicate]

I'm connected to the internet using wired connection and I have an external TP-LINK wifi adapter. I want to bridge connection from wired to wifi adapter, then to my iPhone. How can I do this?
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1answer
21 views

How to get docker0 bridge back?

After removing a bunch on obsolete entries from my Network settings I removed Bridge (docker0) per accident and now my containers cannot connect to the Internet. How do I get it back? It's supposed ...
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How to find IP addresses of devices connected to a bridge?

I have created a bridge name called 'mybridge'. I have added some devices to mybridge. Now how to get IP addresses of the devices connected to this mybridge?
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1answer
66 views

Bridge does not get IP from DHCP server on boot

I have a bridge created on my ubunut 16.04 box. The bridge does not get an IP from my DHCP server on the network on boot. /etc/network/interfaces : # interfaces(5) file used by ifup(8) and ifdown(8)...
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13 views

Tool to generate multiple FIB entries on multiple NICs

Lets assume: I have 4 NICs on my Desktop. I have IP_Forwarding enabled. Using any OS: Generally, I have ONE routing table. This is provided in the FIB entries, and is used by all the 4 NICs. Just for ...
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142 views

Bridge/networking/LXD/emby server configuration trouble

It is not exactly clear to me how to google this question, so please forgive me if this is answered before or related to something else answered before. The symptoms: On boot there is no Internet ...
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94 views

OpenVPN server setup on 16.04

I'm trying to setup an OpenVPN server on my Raspberry Pi 2, running Ubuntu 16.04. I'm following the official Ubuntu documentation from this page. I've got the basic setup working, and I'm now trying ...
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1answer
43 views

how to bring linux bridge up at booting time?

I am trying to bring up a linux bridge at the time my ubuntu is booting. The bridge is mapped to eth0 interface. Is there any way?
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1answer
3k views

Ubuntu 16.04 LTS How to force all http/https trafic to use proxy?

I'm just switched back to Ubuntu, from Windows. I had a program in windows (Fiddler) wich captured all outgoing traffic and could edit their header to use proxy. Are there any way to force all of my ...
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31 views

Error while creating KVM network interface

I am trying to configure a new network interface in the Virtual Machine Manager for the KVM platform. Creating the network interface fails with following error: I am copying the error also ...
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39 views

Network Stops Working After Several Minutes - Ubuntu Guest on Workstation

I have an Ubuntu 14.04.4 guest OS running in Workstation 10. The network connection is defined as bridged. The issue that I have is that the network stops responding after a while (it can work ...
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2answers
58 views

How to safely reconfigure networking on a hosted server?

I have Ubuntu Xenial installed on a server hosted in a data centre. I have SSH access only - no iLO card. Server has a single ethernet connection. I am setting this up as a KVM hypervisor. For ...
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1answer
36 views

What is the UH flag in routing table

I'm using an Ubuntu machine as a server and it has two network interfaces. One is the 10.10.10.0/ 24 range and the other is 192.168.0.0 /24 range. I was trying to bridge these network interfaces as ...
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1answer
93 views

Why using (or not) dedicated bridges with LXD?

Question: Are there specific drawbacks of using a single bridge, as opposed to a dedicated one per container? Details: I have a host which runs a few LXD containers. I initially decided to have one ...
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44 views

Xen domu apache

This is a Xen bridge issue. I have a web server guest. When people click on a web page, the apache logs show the IP of the bridge, not the persons IP who clicked on the page. The bridge should be ...
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115 views

How can I set device mode via networkd

How can I set mode to device (for example monitor/ap to wlan) via networkd deamon in .link file ??? Because I want to set bridge in .network of wlan device and I can't do it until I set it in ...
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1answer
71 views

How to turn up a linux bridge while booting ubuntu machine?

I want a linux bridge to get installed and turned up while booting an Ubuntu(14.04) machine. The bridge should be attached to eth0 interface. How can I do so?
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1answer
85 views

Wireless Internet Ubuntu 15.10

I'm a legit beginner with Ubuntu as I've had Windows OS all my life, so bare with me. I got a PC with a wireless network adapter called: ASUS PCE-AC68 After entering the command lspci -knn | grep ...
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21 views

Connecting to wifi via a bridged router

I am new to using Ubuntu and am trying to set up a wireless connect to my home network. A little background info: I am using an older desktop with no wifi card. To get online, I have TP-Link TL-...
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1answer
138 views

Network bridge, 'Waiting for network configuration', Ubuntu 14.04

I'm trying to setup a network bridge in Ubuntu between my ethernet card and a usb-ethernet adapter. When I boot Ubuntu from a USB flash (a real install with GRUB, not Ubuntu-Live) I get the line "...
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204 views

ubuntu 14.04 bridge + bonding (lacp mode)

I am trying to setup a bridged bonded interface and I cannot get it to work. I am able to ping google public server (8.8.8.8) yet I cannot access the internet with firefox. This is weird to me because ...
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54 views

Can I share file on adhoc network?

I've installed vsftpd and samba after that I created an adhoc connectivity on the Ubuntu. Then i got 10.42.0.1 as the host IP. I connect my mac to the Ubuntu adhoc. And when I open ftp://10.42.0.1 ...
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1answer
64 views

OpenVPN missing bridge.ko

Installing OpenVPN on a new server following these instructions. I have gotten this working a couple times before but this time I get stuck getting the bridge driver to load. Once the interface file ...
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Unable to create hotspot in ubuntu 14.04 using bridge mode

sample diagram: Internet ---> ADSL Router ---> (eth0)+----(Ubuntu 14.04 machine)----+(wlan0 :- WIFI-HOTSPOT) ----->| | |----> +(wireless interface of mobile1)---------(mobile1)----------| | |(wlan0 :-...
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44 views

Possible to let network-manager indicator display status of bridged network?

For my VM, I set up bridged networking by modifying /etc/networks/interface as below: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback auto eno1 iface eno1 inet ...
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35 views

Virtualbox and bridge interfaces

I've been playing a little with KVM and the need to configure the bridge and tap interfaces to give access to my VMs. Now with virtualbox I don't understand why I don't see any interfaces (bridge/tap) ...
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32 views

LXC Application container networking ubuntu

My host system is behind a proxy which doesn't allow ICMP. Host has a static ip say 192.168.28.68 what should be the bridge ip configuration for the container? brctl bridge vanishes on reboot, kindly ...
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1answer
196 views

OVS - Open vSwitch

I installed OVS and added WLAN0 interface in vSwitch. Its work fine but after reboot PC, linux cannot find WLAN0 interface and cannot connect to access point. Ifconfig cannot show WLAN0. I think ...
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1answer
1k views

VirtualBox Ubuntu 14.04 - Bridge adapter not working

I'm having some troubles setting up my network connection using the Bridged Adapter configuration. I'm just starting with Linux and even if I was going through different forum discussions on the web, ...
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How do I fix this bridging of adapters in 14.04 for MAAS deployment?

I need some help with having the network interfaces work as intended. Interestingly enough these steps were taken from Multi Install The adapter names vary some... # This file describes the network ...
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1answer
208 views

Port forwarding between bridged interfaces

So I have a bunch of bridge interfaces bound with my main ethernet device (em1, blame HP). These serve various LXC containers I have running on my server and easily allows me to access them from other ...
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269 views

VirtualBox bridged network adapater not working

VirtualBox version: 4.3.34 r104062 I have problems setting up bridged mode in VirtualBox. The host OS is Ubuntu 14.04 and the guest is Kali Linux 2.0. Setting the network adapter to NAT works ...
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1answer
179 views

MaaS server with local kvm - How to bridge to dhcp interface

I have a MaaS server, it has two network interfaces. One external eth0, and one for the internal network eth1(Nodes network). eth1 is where the DNS and dhcp server managed interface. I want a mix of ...
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84 views

Got trouble with Reverse Tether

I was trying reverse tethering in ubuntu 14.04 as describe below: On Linux Computer, setup a bridge: #usb0 is the new network interface #eth0 is the main interface connected to internet (or a ...
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2answers
2k views

How to bridge a wireless interface with another wireless interface (both on the same computer)?

Ubuntu 14.04 Basically I am trying to accomplish the following setup - wireless internet ---> wlan0 of Ubuntu computer "bridged to" wlan1 of same Ubuntu computer ---> device with wifi The reason ...
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1answer
25 views

How to use Ubuntu for load sharing with multiple NICs

This situation is currently theoretical (but may become very real very soon if there is a good solution). I have a server running Ubuntu Server that has 5 NICs (1 onboard, 4 expansion cards). I have ...
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42 views

KVM Bridged network not working for 2 guests

I have a bridged network setup and working, following the guides https://help.ubuntu.com/community/KVM/Installation and https://help.ubuntu.com/community/KVM/Networking My setup is similar to ...
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1answer
215 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 ...
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49 views

portable wifi device issue

i need some help with device " DG-WN3300N from DIGISOL " , with this device i am unable to share my ethernet internet , any idea /guidelines what i have to do to share my usb ethernet network via ...
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1answer
42 views

Why doesn't wlan0 get added to the Ethernet bridge at boot?

I've got a headless Ubuntu box that I'm using as a router+switch+WAP. It's got two Ethernet ports and a Wi-Fi card. eth0 goes upstream (it's connected to a modem, which is connected to a wall jack); ...