0
votes
0answers
6 views

Dynamips Virtual Router not pinging external host after bridging

I have setup a virtual router image with dynamips and setup bridging between tap0 interface of the virtual router and eth0 and br0 with commands [root@cisco_host]# brctl addbr br0 [root@cisco_host]# ...
1
vote
1answer
28 views

xen project - bridged interface shows 2 MACs

I have a simple xen project 4.1 setup running on debian wheezy dom0. I have noticed during a network scan that a domU gateway returned 2 mac addresses for the same IP. One MAC being the expected, ...
0
votes
1answer
113 views

Ping (DUP) with Linux bridges and tap devices

http://imgur.com/qPoy2QJ I have two Linux (Ubuntu 12.04) VM (running on KVM) that networked together using two Linux bridges as shown above. The network interfaces are Linux TAP devices. The problem ...
0
votes
0answers
76 views

Bridged network on OS X only gets UDP broadcast traffic

I've created a bridged network Mac OS X 10.8.5 using ifconfig and TUNTAP for OS X to bridge my wireless connection, en0, with a virtual interface, tap0, which I can use for guest VMs: $ sudo ...
0
votes
2answers
233 views

Setting Up Xen and Network Bridge on Debian 7

Setting up Xen and Network Bridges on Debian 7 Hi there. So i am finally going to try out some virtualisation on my new dedicated machine, however i am having some problems / confusion on setting it ...
0
votes
1answer
530 views

tap interfaces always disabled in linux bridge

I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this purpose I do: #Create the virtual interfaces tunctl -t tap0 tunctl -t tap1 ifconfig ...
1
vote
1answer
185 views

Changing the mac address in a libvirt xml config file breaks network connectivity for the guest

I'm using Xen with libvirt and trying to set it up on a bridged interface. I am able to install an OS and everything works as I would expect. If I save the xml output from "virsh dumpxml guest", edit ...
0
votes
0answers
103 views

how to carp two interfaces on same node?

I have this CentOS machine with 2 interfaces. eth0--> br0 (.10) eth1--> br1 (.11) Although part of the same network, each interface is being fed from a different switch. I use each bridge in ...
0
votes
1answer
194 views

Can I bridge between two different networks?

I have a VirtualBox VM which has: eth0: 10.0.2.15/24 default-gateway: 10.0.2.2/24 Within that VM I have 2 LXC containers (i.e. two other virtual machines) VM1 - eth0: 10.50.50.50/16 (connects to ...
0
votes
1answer
141 views

KVM guest can't find gateway

I try to setup a KVM server with bridged networking. I followed the docs, but still can't get it working. The guest system can ping the host system and the host the guest system, so the connection ...
1
vote
2answers
231 views

Is there a way to create virtual network between vm on xen with out creating shared bridge with n/w interface

xen 4.1.2 is running with ubuntu 12.04 as dom0. I need to enable networking between vm only(which means not creating a bridge between Ethernet card and sharing among vm). when i installed ...
-1
votes
1answer
467 views

Bridge Networking in XEN other than Default xenbr0

i need to create a bridge with public ip for assigning public ip to VM. But how can i create a Network bridge,as there is a default "xenbr0" bridge exists. Editing Xenbr0 is not permanent,how can i ...
2
votes
1answer
416 views

Xen HVM Windows 2008 network bridge

I have a problem with the Windows Server 2008 guest (hvm). I can't get a network interface running for him. I also have a Debian guest and it's working ok, but I can't do it with the Win2k8 guest. ...
2
votes
1answer
706 views

NFS and KVM. Slow Speed

I have a KVM virtualization in Debian with 2 guests (Debian and Windows 2008). I want to have a 'mount point' shared that can be accessed by the 3 system (host and 2 guests) at the same time. So the ...
0
votes
2answers
931 views

When I restart my LXC environment, the container does not re-bind to the IP address

The IP does no longer respond to a remote ping With restart I mean: lxc-stop -n vm3 lxc-start -n vm3 -f /etc/lxc/vm3.conf -d -- /etc/network/interfaces auto lo iface lo inet loopback up route ...
1
vote
2answers
424 views

Bridging with aliased Ethernet card for Virtualizing with single Ethernet card

We are having a server with good CPU and RAM,so we are planning to do XEN virtualization on ubuntu 12.04 server to handle high traffic. The plan is to keep the host machine only to manage VMs(no NAT ...
1
vote
2answers
423 views

Proper way to expose VirtualBox' machine to network via “one MAC” security locked switch port

Say, we need to expose LXC container (LXC) or Virtualbox VM (VBM) to public network with its own IP-adress (within additionaly assigned network — ADD-net) which is to be routed through main host. When ...
1
vote
1answer
121 views

fail2ban with bridge-util

Hello and happy new year, I am wondering if I can use fail2ban on a virtual host that uses bridge-util. I am using LXC containers for virtualization and have therefore direct access to all the log ...
4
votes
1answer
1k views

How to use VirtualBox as a router without NAT between two subnets?

My host machine is in a 192.168.2.0/24 subnet and I wanted to set up a 10.0.0.0/8 network with various hosts in VirtualBox that talk to each other. So VirtualBox should act as a router between those ...
3
votes
1answer
3k views

Any way to make a virtual bridged network adapter in windows? Like VMware has?

is there any way to make a virtual network adapter in windows (that has its own mac address, and lets me bridge it to another connection? So in the end, it'll be like another physical connection ...
7
votes
2answers
914 views

Linux-KVM networking advice?

Being new to virtualization in general, and somewhat new to Linux (using Debian Squeeze and coming from BSD) I have a hard time understanding what would be the best network bridging option for my host ...
2
votes
1answer
766 views

trying to figure out how to bridge two virtual networks together and in turn bridge that to the internet for a virtual inline IDS/IPS system

I'm trying to figure out how to bridge two vmware (server or workstation, workstation) or virtualbox networks together with a linux IDS/IPS system transparently inline between both the virtual ...
0
votes
1answer
384 views

how to setup a bridge with 2 NICs and few virtual machines

Here is my situation. I have a server with 2 NICs. I have installed virtual box and I have created a few Guest Operating Systems on it. I want these Virtual Machines to be using a bridge.NIC2 would ...
0
votes
0answers
317 views

Xen bridge networking without DHCP

I'm totally new to virtualization and have a problem. My virtual machine fails to access internet cause DHCP isn't available. When I try to assign it an IP it also fails, probably because I need to ...
1
vote
1answer
377 views

How do bridges really work?

I'm in a major confusion here, regarding bridges. I thought that they were devices that allowed going from one network to a different one without routing (doing the work at layer 2 instead), but if ...
3
votes
1answer
3k views

KVM network bridge with public static IP for both host and guests

I have a Ubuntu 10.04 server with 2 public static addresses. There is a KVM guest (also Ubuntu) installed and running. What i want is to give the guest an IP of the host, so that both machines have ...
4
votes
2answers
3k views

Bridging VirtualBox over OpenVPN TAP adapter on Windows

I'm trying to configure a virtual machine (VirtualBox guest running Backtrack 4) with a bridged adapter over a VPN connection. The VPN is is hosted by the cybersecurity club at my university, and ...
0
votes
1answer
640 views

Xen 3.2 on Lenny network bridge broken

I've upgraded recently a server of mine that was running Debian Etch as Xen Dom0 to Lenny. Now the Ubuntu DomU machine running on it has lost all network connectivity except with the Dom0. I use ...