0
votes
0answers
11 views

Bridged VM guest does not get IPv6 ra prefix from host

I have a similar problem and setup as described in IPv6 does not work over bridge. My host get a IPv6 prefix but the guest VM only gets a local fe80-prefix. Using tcpdump I can see that solicit ...
0
votes
1answer
20 views

Multiple interface devices for KVM bridging

I have a server that I'm trying to virtualize with KVM. I'm trying to use a network bridge so that my KVM guests can have external IPs. Every time I create a bridge brctl addbr br0 brctl addif br0 ...
0
votes
1answer
33 views

iSCSI + br0 bridge + 14.04.1 Server = does not work

On one of my servers I have: USB 4GB: 1) EFI partition 2) /boot partition iSCSI 50GB (on another fileserver): 3) / partition In /etc/network/interfaces it works flawlessly if I have: auto p3p1 ...
2
votes
1answer
33 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 ...
0
votes
0answers
41 views

ubuntu vm on open nebula doesn't se internet connection

I have some problem with ubuntu and open nebula. I'm trying to setup one installation of ubuntu on open nebula. Start from this assumption: my machine as an i7 with 16 GB of ram and runs ubuntu ...
0
votes
0answers
42 views

Link aggregation on a LXC bridge

I'm working on a server with a number of various interfaces (eth0-3) and I currently just use one for both host traffic and another for my LXC bridges traffic. Since I have a few spare ports just ...
2
votes
0answers
56 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 ...
0
votes
0answers
35 views

url_helper.py warning cannot route to host. Ubuntu Server

When booting a Node Via PXE i keep getting url_helper.py[warning] saying it cant route to host, My Master Node/Controller has 2 interfaces. 1 for nodes, 2 internet access. What can i do to allow the ...
0
votes
1answer
35 views

Two network interfaces use for up and down

I've setup Ubuntu Server 14.04 as a virtual machine using vSphere. When I created the machine I set it up with 2 network cards. Is it possible to set one as a download interface and another as ...
0
votes
1answer
40 views

Setting up VMs on different subnets

I run a server on IP X.Y.3.7 and i want to run multiple VMs on it using libvirt. I set up a bridge device: auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address X.Y.3.7 ...
0
votes
0answers
17 views

Trill for Ubuntu

I have a project on testing trill but I do not have the equipement that supports it (like Cisco Nexus) so I was wondering if there is an opensource version that I could install on Ubuntu. I found ...
0
votes
2answers
159 views

IPv6 does not work over bridge

I installed Ubuntu 14.04 server a week ago. I use it as a virtual machine host (tasksel installed). meaning am running it with kvm + libvirt. I have set up the same bridge I had in 13.10. auto p4p1 ...
1
vote
1answer
839 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 ...
0
votes
0answers
18 views

Showing Unmanaged in network ICON even i have a working internet and local net

I have installed Ubuntu 12.04, I have assigned a Manual IP Address for my Host using Bridge, I'm using KVM so i have to use Bridge for assigning same network range for Virtual machines, Now the issue ...
0
votes
1answer
89 views

Bridge Ethernet and Firewire

I'm trying to connection between my eth0 and firewire0 interfaces on an Ubuntu 12.04 server. I tried using brctrl, but it apparently doesn't support firewire: samuelwn@master:~$ sudo brctl addif br0 ...
3
votes
3answers
313 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 ...
0
votes
0answers
20 views

Using server as controlled switch

I have an Ubuntu server with 3 NICs installed. I have two classrooms. I want to control the two classrooms with IPtables separately. My problem is that I can't (bridge eth0 to eth1) and (bridge eth0 ...
0
votes
0answers
94 views

Network bridge has no internet access

I have a machine with two network adapters and I want to use it to share its internet connection to an IP phone (because there's only one Cat5 cable available and while the phone has built-in switch ...
0
votes
0answers
154 views

how to forward ethernet internet from ubuntu pc via wifi stick to windows 8 laptop

This is my setup: Ubuntu PC connected via Ethernet connection to a LAN that has internet connection has a WIFI stick, (the router does not have WIFI support) Windows 8 Laptop with ONLY WIFI (no ...
3
votes
1answer
135 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 ...
1
vote
0answers
122 views

Unable to restart my network services

I cannot restart my networking services by using the restart command. Earlier it was working fine but today I created a lot of mess by giving IPs removing and all. And now when I enter the restart ...
0
votes
1answer
89 views

Mysterious multicast packets after bridging a bond0

I've got 2 interfaces eth0 and eth1 in a bonding (mode 4). Now I want working with kvm and let the instances communicate over a bridge br0. Now my config changes. From this...: auto eth0 iface eth0 ...
0
votes
1answer
65 views

Bridge wireless connection from OSX 10.8 to Ubuntu 12.04 LTS

I have a Mac running OSX 10.8.2 that is connected to a wireless network. My Ubuntu 12.04 LTS box has no internet capability atm (wired network down). I would like to bridge the connection on my Mac ...
0
votes
1answer
198 views

Virtual machine in two subnets

I'm coming from networking where a router/switch has a separate interface for management. Therefore I want to understand how this is implemented for servers/virtualized servers. I have one subnet ...
1
vote
2answers
1k 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 ...
0
votes
0answers
97 views

Network bridging and routing

i have a isp. and i have ubuntu server 12.4 with three nic. here eth0 ip is 10.10.10.15 with the gateway 10.10.10.1, eth1 ip is 10.0.0.20 with the gateway 10.0.0.1 and last eth2 my local lan ip ...
0
votes
0answers
79 views

configuring containers to use Veth#, bridges and vlans on the server (only)?

I have two groups of lxc contianers on a server and want to isolate their network traffic for security reasons. I will be using port forwarding so the containers much each have separate IP's. I know ...
0
votes
0answers
1k views

Virtualbox bridged adapter - only one network interface listed in /etc/network/interfaces

I've been trying to configure another version of linux in virtualbox, and I want to connect it to my network using the bridged adapter option by bridging it to my wifi. Its been taking me a while to ...
0
votes
0answers
38 views

Bridged connection from Win8 over ethernet not working

right then, Ive just dont a fresh install on a old laptop and am needing to download the proptirtary drivers to get the wifi card going. So ive set up a Bridged connection from my Win8 laptop over ...
0
votes
0answers
119 views

how to use usb tethering in ubuntu running pandaboard ,to use internet in host pc?

I have a pandaboard running ubuntu 12.04 LTS. i want to use internet in my host pc through pandaboard by using usb tethering. pandaboard is connected to internet over wifi. i have configured ...
1
vote
0answers
556 views

Bridging Ethernet and Wifi on Ubuntu 12.04

I want to make my Ubuntu machine an access point for my phone. The Ubuntu machine is connected to Gigabit Ethernet. I wish to make my machine a DHCP server for the phone. So now when the phone sends a ...
1
vote
0answers
80 views

Networking with two ISP

I'm trying to configure two ISP on different network cards and at the same time to use bridge in order work with virtual machines and KVM. The current network configuration can be seen below: auto lo ...
1
vote
1answer
295 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
2answers
2k views

How to control the up order of network interfaces?

I have /etc/network/interfaces as follow. Every time the system boots up, the route is wrong so the gateway is not reachable. I'd have to ifdown br0 && ifup br0 to fix the route table and make ...
1
vote
1answer
17k 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
0answers
47 views

How to disconnect a networkconnection?

I have a small problem which i liked to be solved. my (Hardware-)configuration: Asus motherboard with 1 connector for ethernet(eth0) PCI network card with 2 connectors for ethernet(eth2 & eth3) ...
2
votes
0answers
48 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 ...
0
votes
1answer
1k views

how do I bridge two wired network connections

I have an EVGA 780i SLI motherboard with dual ethernet ports. I was just wondering if there was a way to bridge them like I can in Windows?
0
votes
1answer
425 views

Can I use my second ethernet port to bridge the first?

For reasons of architectural design and the way people installed the phone lines in the 80s, my desktop and the router are a long way apart. I ran CAT5 out to the desktop and that works great but ...
2
votes
2answers
5k 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 ...
0
votes
1answer
341 views

What's the best way to configure the containers to have an IP directly on the LAN

I see that there are a lot of new ease-of-use improvements to LXC in 12.04 & 12.10, and although I see some description to setting up bridged networking such that my containers have their own LAN ...
4
votes
1answer
692 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 ...
2
votes
0answers
78 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
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 ...
0
votes
1answer
598 views

How Can I add two Bridged Interfaces on seperate LANS into KVM?

I Currently Have a Running server with multiple KVMs running different Servers within each, now I would like to add another separate interface to serve another group of KVMs on the same server. There ...
3
votes
2answers
5k 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 ...
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 ...
1
vote
0answers
1k views

My laptop can not access internet after setup bridge with wired NIC and wireless NIC [closed]

I setup a bridge using wired NIC and wireless NIC in order to make wireless NIC as a Wi-Fi AP to share wired internet access, after setup successfully, the Wi-Fi AP works as my expectation, but my ...
7
votes
1answer
326 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 ...
9
votes
3answers
28k 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 : ...