Questions about configuring and using bridging interfaces

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12
votes
3answers
39k views

No internet connectivity in virtual-box with both Host and Virtual OS being 12.04

I have Precise 12.04 installed as the host OS. In VirtualBox,I also have installed 12.04. I am not able to connect the Virtual 12.04 to the host internet. I have tried selecting all the available ...
11
votes
2answers
4k views

How to configure an OpenVPN Client Router

I am attempting to set up an OpenVPN Router so that I may connect my tablet (wireless) and Blu-Ray (wired) to a paid VPN service in another country on Ubuntu 12.10. I have successfully done this using ...
10
votes
3answers
35k views

KVM Bridged Network Not Working

I just installed KVM on my Ubuntu Server according to this guide : https://help.ubuntu.com/community/KVM/Installation Then prepared a bridged network as shown in here : ...
10
votes
3answers
27k views

How do I create a non-adhoc wifi hotspot?

I wanted to use my desktop with a wired ethernet connection (eth0) to operate my "TP-LINK TL-WN722N" USB Wifi Adapter (wlan0) as a non-adhoc (infrastructure mode) access point for my Android to ...
7
votes
1answer
341 views

I want to use Ubuntu as a firewall and wireless AP, with some external traffic passing through openVPN, and the rest just through a firewall

I would like to do some configuration through Zentyal or a similar setup, but I am also willing to use config files. I am connecting to a commercial VPN using a username and password. I want that ...
6
votes
2answers
743 views

How to switch between network interfaces from console?

I've installed Debian in my VirtualBox (my host OS is Ubuntu). And there I configured two network interfaces: eth0 as NAT, and eth1 as Bridge. NAT I need to have access to the internet in virtual OS, ...
6
votes
3answers
3k views

LXC Containers & Bridge Connection

                    I need Step by Step Configuration to make LXC Containers in Ubuntu right way to configure Lxc container's right way to config cgroup right way to config network in host & in ...
6
votes
1answer
1k views

Bridge interfaces and KVM

I have an Ubuntu server with and a VM using KVM. The plan is that the server and the VM have a static IP address. I tried to change /etc/network/interfaces combining some of the examples available to ...
6
votes
1answer
5k views

Why isn't ethernet bridging working with OpenStack?

I'm trying to setup OpenStack with the nova.network.manager.FlatManager network manager which attaches (in my setting) every virtual machine to the br100 network bridge. On my host, I'm using the ...
6
votes
2answers
2k views

Can I connect to multiple networks for double bandwidth?

If I used one wired connection to ISP_1 and another wireless connection to ISP_2, can Ubuntu benefit from both, such as running bit-torrent and getting twice the bandwidth?
5
votes
2answers
3k views

Copy all bridge traffic to a specific interface

I have a bridge/switch set up an a machine that has multiple ports. Occasionally, I have a vm running through virtualbox, and I'll have it use a virtual adapter and then I add the adapter to the ...
5
votes
2answers
12k views

How do I bridge network interfaces?

I have a laptop running 11.10 with 2 network interfaces, wired and wireless. Wireless interface connects to the router with DHCP and connects to the internet. Wired interface is connected to a ...
4
votes
2answers
6k views

Ethernet-WiFi bridging with 11.04

I'd like to set up a bridge between a wireless subnet and an Ethernet subnet (actually just one client, a DVD player with absurdly poor wireless). That is, the wireless network is the "real" network, ...
4
votes
1answer
773 views

How to use VPN over manually set up network bridge (with the primary interface unmanaged by NetworkManager)?

I've set up a network bridge which I'm using to connect KVM virtual machines on my desktop to my home network; I' ve don this the manual way by creating the bridge in /etc/network/interfaces (the way ...
4
votes
1answer
3k views

sharing internet between network interfaces

I have a laptop with lubuntu 11 with two network interfaces, wireless and wired. Wireless interface connects to the router with DHCP and provides access to the internet. The wired interface has a ...
4
votes
1answer
7k views

How to stop Wireless AP Hosting using Network Manager on Ubuntu?

I use the following script to make my netbook a full-fledged wireless access point. It creates a bridge with eth0 and wlan0 and starts hostapd. #!/bin/bash service network-manager stop ifconfig ...
3
votes
2answers
6k views

How do I set up a xen bridge?

I have been reading various pages on how to set up the network for xen. Unfortunately, none of them actually have a full example config. They clearly show what the xenbr0 section should look like, but ...
3
votes
3answers
400 views

Create “virtual” LAN on laptop (not VLAN)

I'm running a number of virtual machines on a Ubuntu 12.04 host. For various reasons all these VMs need fixed IP addresses. The laptop in question is used for demonstrations -- and this is where the ...
3
votes
3answers
998 views

Switching Juju lxc bridge

I've set up Juju running in LXC, and I'm attempting to expose it to the internal network. I'm generally following this question to point lxc to my existing bridge (eth-br0). I've edited ...
3
votes
2answers
5k views

Bridging: Loosing WLAN network connection with 4addr on option - Why?

Question: For use with my Xen VM, I need to create a virtual network interface (vif) that is bridged to wlan0. If in /etc/network/interfaces I add auto xenbr0 iface xenbr0 inet dhcp And ...
3
votes
1answer
75 views

Network Bridge Over a Subnet

I am trying to figure out how to make a flat network by bridging over a subnet using 2 Ubuntu guests so that everything in the other subnets can talk to each other without restriction. Configuration ...
3
votes
2answers
7k views

How to share my mobile broadband connection via Wifi

I am running Ubuntu 12.04 on my laptop having wifi. I have an android tablet which has wifi support. I connect my laptop to the internet through Mobile broadband (reliance netconnect zte modem). I ...
3
votes
1answer
976 views

Network bridge disconnects and reconnects to Xbox 360

I am trying to setup a network bridge to my xbox 360, but the wired connection notifies me that it is connected,5 seconds later it notifies me it disconnected, and it keeps in a cycle until I ...
3
votes
1answer
1k views

Bridged network between Ubuntu Desktop 10.10 host and Ubuntu Server 10.10 Guest

I run Ubuntu 10.10 Desktop on my machine and have installed Ubuntu Server 10.10 in a Virtualbox VM. I'm running Virtualbox 4.0.2. It is not virtualbox-ose. I'd like the guest OS to have an IP address ...
3
votes
1answer
158 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 ...
2
votes
2answers
6k views

After starting a particular LXC container with a static IP, no default gateway route is configured

I've got one LXC container that works just fine, but a 2nd one now is mis-behaving. I've configured a static route for it, but it just won't define a gateway after sudo services networking restart or ...
2
votes
1answer
3k views

VirtualBox - How to connect LAN computers to Windows XP Guest

I have software in a Windows XP Guest that acts as a server. I need to have my LAN computers connect to it. Is the best way to use a bridged connection? Is there another way? I've tried setting up a ...
2
votes
1answer
2k views

lxc container no outgoing traffic

I am trying to setup a lxc container on a ubuntu 13.04 on a linode VPS, but I can't ping anything outside my host. my container network config looks like this: lxc.network.type = veth ...
2
votes
1answer
1k views

Bridge connection: Ubuntu keeps modifying routing table

I have set up a bridge connection from my mobile phone connected via USB to my laptop running Ubuntu 12.04 to another computer connected via ethernet cable. The bridge thus connects usb0 and eth0. I ...
2
votes
1answer
3k views

Bonding + Bridge : traffic passing through the wrong interface

I'm using Ubuntu server 12.04, on a server with 6 NICs, grouped in 2 bundles : eth0 and eth2 are bundled using bonding mode 1, under interface name bond0 which has IP [network].8 eth1, eth3, eth4 ...
2
votes
1answer
3k views

Bridge Laptop's Ethernet to Wireless

The laptop wirelessly connects to my router, while the desktop is connected to the laptop with an ethernet wire. The desktop successfully can use the internet if I set the connection to be shared on ...
2
votes
1answer
2k views

How do you make a bridge between two connections?

I've done this: Created a wireless network via the network manager. I have internet through a wire. I want create a wireless network and share my internet access that I get from a wire. @TheX ...
2
votes
0answers
109 views

LXC bridging with two NICs

I am setting up a server to host a number of LXC containers, for now just isolating web and db services. The server I am using has two NICs and I'd like to use one for host traffic and one for ...
2
votes
1answer
124 views

A question about the Internet/ConnectionSharing (NAT) via iptables

I'm following this tutorial to setup a NAT gateway: https://help.ubuntu.com/community/Internet/ConnectionSharing#Ubuntu_Internet_Gateway_Method_.28iptables.29 With simple eth0 as WAN and eth1 as LAN ...
2
votes
2answers
3k views

Why do we need an IP address for a bridge?

A bridge is a layer 2 network device. On physical bridges we only have an IP address for operation and maintenance. I'm a little bit confused why we need in KVM an IP address for the bridge. I ...
2
votes
0answers
50 views

How do I assign an IP address to an LXC container? [duplicate]

I'm trying to start lxc containers with their own public ip address on the network. This is what I've tried so far: On the host The host machine has an IP address of 192.168.255.254. I added a ...
2
votes
0answers
82 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 ...
2
votes
1answer
2k views

Can't get bonding and bridging to work for KVM [closed]

I can't for the life of me get bonding and bridging to work for the KVM setup I'm building. I'm using a fresh install (not an upgrade) of Ubuntu Server 10.10. I have 4 NICs on the same subnet (two ...
1
vote
2answers
7k views

network bridge - without destroying network manager

I have seen a lot of questions related to Bridge and network manager. however none of them seem to apply to what i seen AND want. I setup my bridge in /etc/network/interfaces. This works perfectly; ...
1
vote
2answers
4k views

Bridge/route a wireless connection

I was trying to follow this guide: https://help.ubuntu.com/community/EasyWirelessToWiredConnectionSharing but it does'nt seem to be upgraded. The dhcpd.conf file is in /etc/dhcp and not in /etc/dhcp3. ...
1
vote
1answer
475 views

Why doesn't the nova-cloud-controller charm properly set up openstack networking?

I have an Ubuntu Quantal MAAS server and some computing nodes. I'm trying to set up an OpenStack cloud by following the Ubuntu Cloud Infrastructure walkthrough. Everything looks okay...I can bootstrap ...
1
vote
1answer
24 views

Looking for network surveillance tool

I sometimes use / test software that cannot be found in the apt tree. The software comes from all over the internet. When executing the software I create an extra user for this particular software and ...
1
vote
1answer
333 views

Can't connect to site hosted on Ubuntu Server VM

Yesterday I had my Ubuntu Server VM successfully hosting a website that I could access by typing in the IP of the VM (VirtualBox Bridged adapter) in my client's browser. Today I can't access it. I ...
1
vote
1answer
3k views

Bridging eth0 and vboxnet0 and using ISC DHCP server to provide dynamic IPs

I have Lubuntu 12.04 (64bit) with VirtualBox 4.2 installed and the setup below: eth0 adapter connected to LAN (having static IP 192.168.0.1 and it is the default gateway). ISC DHCP server listening ...
1
vote
1answer
20k views

RTNETLINK answers: file exists - configure interface

Forgive the newbie question. I am trying to setup eth1 in interfaces: however, I am getting: RTNETLINK answers: file exists here are the results of ifconfig: what am i doing wrong?
1
vote
1answer
919 views

I want to do a bridge between ubuntu and my ps3

Hello I have been trying to put bridge mode on ubuntu basically my setup I've got a router upstairs that I usually get wireless to my laptop which is connected ethernet to my ps3, so my ps3 gets ...
1
vote
1answer
12k views

How to set up bridged networking in Xen?

I have 2 domU virtual machines installed on a 11.10 Oneiric Dom0. My internal network is on the 192.168.1 subnet, and when the domU's start, they get ips on the 192.168.122 subnet. I have attempted to ...
1
vote
2answers
16k views

How to properly set up a network bridge using bridge-utils using wlan0 as the internet “source”?

Hey everyone this is my first post so go easy on me. I currently have a laptop with Ubuntu Studio 12.04 Beta 2 that is supplying a wireless internet connection to a windows 7 desktop computer that's ...
1
vote
1answer
1k views

creating wifi hotspot for Galaxy note

I follow the steps mentioned in many blog but my wifi AP is not scanned by my phone. My system config:- Ubuntu 11.10 64-bit 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) ...
1
vote
0answers
27 views

Correct way to create VLAN and Bridges on Ubuntu14.04?

When I tried to create VLANs and Bridges on Ubuntu 14.04 as following, network connection is always lost on it, what's the problem? Note that the if I only set em1(no em1.100, cloudbr0 and cloudbr1) ...