0
votes
0answers
34 views

kvm/qemu guests loose ethernet when files transferred to them over network share [closed]

I currently have a kvm/qemu setup on Ubuntu Server 13.10 x64 with 3 guests. The three guests are 2 Windows Server 2012 x64 and 1 Ubuntu Server 13.10 x64. These guests are using a bridged (br0) ...
0
votes
1answer
49 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
50 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 ...
0
votes
0answers
70 views

KVM and Bridge connection

I have an Ubuntu 12.04 server in a datacenter and it is running KVM. I have virt-manager installed locally on a Macbook Air with parallels. Its installed on Ubuntu 13.10. I have created another ...
1
vote
2answers
196 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 ...
1
vote
0answers
68 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 ...
0
votes
0answers
280 views

Change bridged network interface created by KVM install

I have recently installed Ubuntu 12.04 LTS server and I chose to install Virtual Machine Host as one of the packages during install. The server has an on-board NIC and a PCI NIC and during install, ...
0
votes
1answer
412 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 ...
0
votes
1answer
952 views

Added a bridge for VM guest, now the host can't access the internet

I've installed KVM and set up bridged networking as per the instructions in this user guide. The guest on the VM seems to be working fine. I can SSH into it and it can ping the outside world. But now ...
0
votes
1answer
846 views

How to make sysctl network bridge settings persist after a reboot?

I am setting up a notebook for software demo purpose. The machine has 8GB RAM, a Core i7 Intel CPU, a 128GB SSD, and runs Ubuntu 12.04 LTS 64bit. The notebook is used as a KVM host and runs a few KVM ...
9
votes
3answers
21k 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 : ...
0
votes
3answers
1k views

Bridged networking in KVM

I'm using ubuntu 10.04 with qemu-kvm installed. I bridged my eth0 to br0. My problem is that The host OS loses connection. Here is my interfaces file auto lo iface lo inet loopback auto eth0 ...
0
votes
1answer
636 views

Ubuntu KVM Networking

I have two VMs ( linux based VM ) running on a UBUNTU/QEMU KVM. I am looking at a simple networking model, where in the VMs have public address and need to talk to the outside world and the outside ...
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 ...
2
votes
1answer
1k 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 ...