1
vote
1answer
22 views

ICMP Request not reaching the guest machine on virtualbox

I have a virtual box (4.3.14) installed on host ubuntu 12.04. I have a guest machine ubuntu 12.04 32 bit installed on this virtual box. The problem is that, my ping request is not reaching the guest ...
1
vote
0answers
7 views

Windows DHCP MAC-Range to Scope allocation

I wonder if there is any options to map a specific Range of MAC addresses to a specific DHCP address scope. The thing is, I want a specific scope for address allocation to bridged Virtual Machines ...
3
votes
2answers
67 views

same subnet,different VLAN in Virtual machine

I have 2 VLAN,VLAN 100 and 101 but only one subnet i am trying to make this work with virtual machine so that VM will have two IP address in same subnet but will actually be in two VLAN. steps ...
0
votes
1answer
55 views

zeroshell with multiwan on virtualbox

I'm planning to setup Zeroshell as a router gateway for a school network on Virtualbox. The host machine will run Ubuntu server edition. Then I will install Zeroshell as a guest Os with 4 configured ...
0
votes
1answer
25 views

VirtualMachine is not available from bridged interface outside the local network

I'm unable to connect to any service running in my VirtualMachine from Outside my local network. My VM has the following configuration: eth0 - Host Only Network eth1 - Bridged Network (Therefore ...
1
vote
1answer
23 views

Win7 VM network is flaky after migrating from Hyper-V 2012 to 2012R2 and upgrading integration software

I'm in the process of upgrading our Windows 2012 Hyper-V hosts to 2012R2. As part of this process, I am migrating existing VMs from the 2012 hosts to hosts that have already been rebuilt. These are ...
0
votes
0answers
4 views

Guest VMs unable to ping each other within a custom host-only network in vmware workstation [migrated]

I have created a custom host only network VMNet2(without dhcp) in VMware workstation and connected my three VMs with this network. But the problem is I cannot ping any VM from any other VM, However I ...
0
votes
0answers
63 views

XenServer HA (failover VM's) without shared storage

In the university from Uruguay where I work, we have 2 IBM BladeCenter S with 4 server blades each one. Each blade have XenServer 6.2 installed and working. Our idea is have each BladeCenter in ...
1
vote
0answers
43 views

IBM BladeCenter H networking

I'm new to the IBM BladeCenter H, and I'm trying to figure out the networking side of it. I've installed a windows server OS on one of the blades, and am trying to fiddle with it's network setup ...
0
votes
1answer
32 views

Getting VMware Port-ID using commandline

Is there a way to directly gather the vmware port-id using commandline? I'm trying to make monitoring switchports easy through esxcli but in order to get port statistics I require the portid of a VM ...
3
votes
1answer
49 views

'conntrack' tracking private TCP sessions between VMs

We have a pair of VMs running as virtual routers and BGP/TCP peering between the two virtual routers (running over QEMU/KVM). The VMs each have a tap interface that is connected to a Linux bridge that ...
4
votes
3answers
81 views

Virtualisation suitable for packet-intensive application?

We have a custom and VERY bespoke application that runs on a Windows 2008R2 server. It's primary function is to connect to many tens of thousands of IP addresses as quickly as possible and interrogate ...
0
votes
2answers
396 views

When emulating an OpenWRT Router in VirtualBox how do the network settings relate to a real world router?

I'd like to setup OpenWRT in VirtualBox for purposes of testing a network configuration before putting it on a live physical router. How do the adapter settings relate to the real physical ports on ...
0
votes
0answers
25 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
-4
votes
1answer
48 views

Single machine server with many operating systems [closed]

Could possibly with single one high end Server with supported Virtualization We can have: - DHCP Server (Virtual Machine 1), - Firewall (Virtual Machine 2), - Squid proxy (Virtual Machine 3) - ...
2
votes
1answer
80 views

Hyper-V 12r2 across 2 physical networks

Ok, so first off... I have done this multiple times with VMware and had zero problems so I assume I am missing something in Hyper-V. Hardware I am working with: Single Dell R510 Host Onboard Dual ...
0
votes
0answers
21 views

Automated hostname availability for OpenVZ environments

for several years now I am administrating some OpenVZ Hardwarenodes with a fairly low amount of containers per node (10-20). I'm about to setup a new machine, and what's always bothering me is the ...
0
votes
1answer
71 views

Access to Web-application inside Docker

Here are what I have: the physical computer (1) i have installed the virtual machine on this computer (virtual box, bridged networking, ubuntu server, ip=192.168.1.80) inside this virtual machine I ...
0
votes
0answers
221 views

XenServer open vSwitch performance downgrade

I'm trying to capture part of an inter hypervisor traffic between 2 virtual machines running over XenServer 6.2. I want to mirror some TCP sessions to a 3rd virtual machine with minimum affect to the ...
0
votes
1answer
163 views

Creating VLANs between network namespaces [closed]

I want to implement the topology shown in the figure below using network namespaces (ns1 to ns4). ...
-1
votes
1answer
34 views

Virtual machine and VPN clients on same subnet

I have a Linux server running OpenVPN-AS and vmware player which runs a windows 2003 server. I need the remote VPN clients to connect and access windows shares from the VM. I can't figure out how to ...
3
votes
1answer
165 views

Private network between two KVM VMs

I'm trying to connect two KVM hosts together with a transparent ethernet link. I'm using Proxmox VE as the host and have configured 2 KVM VEs with ethernet interfaces and joined them to a single ...
0
votes
1answer
365 views

how to connect multiple kvm/qemu VM guests in to a subnet [closed]

I want to setup a simple subnetwork of KVM/QEMU guest VMs living on a single host (Fedora 19) for testing purposes. The subnet would contain 3 servers: 1 Debian 6.x eth0 ip: 10.0.0.7 eth1 ...
1
vote
1answer
161 views

Access web server on VM from a machine in a different subnet

I cannot access to a web application running on a virtual machine hosted by KVM from a machine in a different subnet. So, I would like to access from the machine 192.168.1.2 (top right in green ...
2
votes
1answer
46 views

Delays when contacting vSphere virtual machines

We using vSphere 5 to host over a dozen virtual servers and all are Windows 2008 R2 or newer. I'm experiencing a bad delay of a few seconds after a VM has been idle for a little while (may only be a ...
4
votes
2answers
426 views

Proper Hyper-V Network Configuration for Windows Server 2012?

We just put our first Hyper-V based web solution online about a month ago (Diagram below). We're having intermittent communication issues between Virtual Machines during periods of elevated traffic, ...
0
votes
0answers
71 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
211 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
767 views

Proxmox: VMs and different public IPs

I have a server which has two NICs and both are directly connected to internet. I have five different public IP addresses available for the VMs. The host machine (Proxmox) doesn't need to use any ...
0
votes
0answers
443 views

XenServer giving bridge access to guest using Private Network

I have two networks configured in XenServer 6.2: Production - Private Network Management - Private Network For each guest, I have two NIC's, one per network. None of the guests should have ...
0
votes
1answer
327 views

Proposed Network Design for DMZ with Server Virtualization?

I have the following proposed network design that I will be implementing. All connection for server and PCs are connected through an All in One cisco firewall Only one high end server will be used. ...
0
votes
2answers
330 views

Network design vm virtualization in small office [closed]

I just recently bought a 16gb ram, Intel i7 quad core Mac mini to be used as the central point of entry to my network and am looking for advice on how to design a network suitable for a small office. ...
0
votes
0answers
87 views

OpenVZ container not reachable after host reboot

I started having a rather strange problem lately. After rebooting the OpenVZ host system all Containers seem to be up and running, but some of them (not all) are unreachable from both the host system ...
0
votes
1answer
3k views

Unable to ping between host machines and guest vms running on Vmware

In order to learn a bit about system administration, I've installed a Centos vm using Vmware on my local machine running Windows 7. Everything seems to be working fine since I can access the internet ...
1
vote
2answers
87 views

Access virtual box on remote server

I have a remote server (ubuntu) with 1 public IP. I've installed headless VirtualBox and deployed machine. For now I can access it by VirtualBox's VRDE Server running on server, but what i need is ...
-1
votes
1answer
88 views

setting IP address from different subnet to virtual machines

I have only 1 NIC on my server and the IP address of it is 62.X.X.107. And the gateway I've received from the datacenter is 62.X.X.1. I have bought 2 more IP addresses from the datacenter to use them ...
0
votes
1answer
53 views

Using RRAS results in bluescreens with 1E and 3C errors on things like Ping

My whole class has a major problem with RRAS. Let me first explain the situation. For our project, we have to virtualize two servers (North and South) each represents a location of the company, and ...
0
votes
1answer
333 views

How can I connect two virtual machines in vSphere ESXi 4.1?

There is documentation available for version 5 (I am running 4.1 per the title), but following the directions raises the error: Incompatible device backing specified for device '0'. upon ...
0
votes
1answer
224 views

UBuntu 13.04 Server with a Windows 2008 VM

I have a ubuntu 13.04 server. On it I have a virtual machine (kvm), with Windows 2008 on it. I have configured /etc/network/interfaces to have a bridged connection to the machine, so I am able to ...
0
votes
1answer
99 views

Split management network from data in Xen Server

I'm working on configuring our existing pool of four hypervisors running XenServer 6.1 to use a separate management network. Currently the setup is a single link with a public address over which all ...
1
vote
1answer
157 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
1answer
56 views

Could not connect to bridged VM with Win2012 host

I have the following setup. A physical PC with Windows Server 2012 (host OS) with VMware Workstation 9.02 with: Windows Server 2012 (guest OS) Ubuntu 12.04 (guest OS) The guest OS's both run as ...
1
vote
0answers
358 views

Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack

I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
0
votes
0answers
152 views

Can't reproduce arp non-response issue with spoofed packets

I'm trying to debug an issue involving a KVM virtual machine instance where the instance doesn't respond to network requests when the source is on another physical machine, which is on the same subnet ...
0
votes
1answer
176 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 ...
3
votes
1answer
950 views

There are currently no network adapters with network optimization available

I'm setting up a 2 node Hyper-V cluster and when I try to migrate a virtual from one host to the other via VMM, I get a "There are currently no network adapters with network optimization available" ...
2
votes
3answers
2k views

Unable to ping VirtualBox guest with Bridged Networking

I'm running VirtualBox 4.2 on Windows Server 2003 and I am trying to ping the IP address of the guest virtual machine from the Windows host (ICMP is not being blocked). The guest is 192.168.0.1 and ...
0
votes
2answers
135 views

KVM Networking - Multiple LANs

I'm trying to set up some virtual servers with kvm and am struggling to work out what to do regards the network config. Currently I have 10 dedicated servers behind a firewall (asa 5505) - 2 of these ...
1
vote
1answer
732 views

Xenserver guest OS network configuration

I am presently able to ping the guest OS' (for example, I can tell because they stop pinging when the guest VMs are powered down or the network is being restarted, etc.), but none of them can ping out ...
1
vote
1answer
129 views

Apply libvirt nwfilter without editing of XML

Is it possible to apply libvirt's network filter to a KVM guest without manually editing the XML (for use in scripts)? Or is there any easy way of pushing the network filter configuration into ...