3
votes
2answers
65 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
135 views

Add second IP block to one debian box (one nic) from different subnet than the first block

I have zero networking knowledge, so bare with me please. I got the following: xxx.xxx.199.208/29 xxx.xxx.221.64/27 The /29 IP block is available directly from the network drop The /27 IP block is ...
4
votes
2answers
1k views

Am I using virtio for my KVM guest?

In one of my KVM guest, when I typed the following command, I get the following /sbin/lsmod | grep vi virtio_balloon 3692 0 So does it mean I am using virtio? Update: When I type cat ...
1
vote
1answer
557 views

Virtual IPv6 Network between VirtualBox VMs

I'm trying to create a virtual IPv6 network as a test environment. I have 5 VirtualBox VMs (Ubuntu Server) with network adapters using host-only networking. You can imagine them being connected in ...
3
votes
1answer
669 views

How to place a virtual machine in DMZ?

I have an Ubuntu 12.04 server running few virtual machines with KVM. I would like to expose some of these virtual machines on the internet, to make it possible for customers to test the products ...
-2
votes
5answers
1k views

Unable to ping Redhat 5.6 instance on vmware esx 5.1

I am running vmware esx 5.1 and I've created an instance of red hat 5.6 Desktop with a static ip address. When I restart the red hat guest I am able to ping it from another system but then as soon as ...
0
votes
1answer
356 views

ping latency using vhost_net, macvtap and virtio

I have been testing network throughput and latency and I was wondering if my measurements are as expected. For the test, I used Fedora 17 for both host and guest, using kernel 3.5.2-3.fc17.86_64. ...
1
vote
2answers
639 views

VMWare and Turnkey Linux appliance can't access network

I have a VMWare ESXi cluster running many Windows and Linux VMs perfectly. I have installed the Turnkey Linux Redmine appliance, and am having a lot of trouble getting the networking to work ...
-2
votes
1answer
135 views

Implement a SOHO server on the limited functionality host (Win Home) using the virtualized Linux server as a guest OS on that host? [closed]

Consider a machine running a very limited server functionality OS (for example, Windows Home Edition). I want to implement a basic SOHO router functionality (nat, dhcp, vpn, routing) using modern ...
2
votes
3answers
397 views

Performance penalty of multiple IP's per network interface

How can I measure the performance penalty of a network adapter that is configured with 2 IP addresses per eth0 ? The network card has 2 physical interfaces (ports): eth0 and eth1 with only eth0 ...
0
votes
1answer
68 views

Does Cloned VM use the same Hard Disk space of Guest?

if i clone a guest VM in RHEL6 does the clone use the same Hard disk space of the guest? The aim is not to, as each guest VM, cloned or the normal guest should have it own hard disk space allocated. ...
0
votes
2answers
130 views

substituting for a router in a closed virtual environment

Just a quick question, how can I create a substitute for a router in a vmware esxi environment containing several windows and linux servers on two seperate subnets? I would like to use redhat as the ...
0
votes
1answer
583 views

How to whitelist range of MACs in 75-persistent-net-generator.rules?

I have a Debian Squeeze (2.6.32-5) guest in KVM that has all virtio network interfaces, and their MACs are apparently blacklisted by udev as per /lib/udev/rules.d/75-persistent-net-generator.rules ...
9
votes
3answers
345 views

Any free networking lab?

I want to study network. But I don't have an access to a sample network (routers, DNS, IP4, IP6 windows linux mixed heterogenous system). Do you know any online network to study (Free as possible). Is ...