Debian :: Virtual Networking In Qemu / Add Interfaces To Two Networks

Sep 5, 2015

I just installed qemu and want that my VM should have net access too. So for that I installed bridge-utils and used URl....Add both the interface with the second computer, and the interface that leads to the existing network. Do it with this command: # brctl addif br0 eth0 eth1

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General :: Use 'iw' To Create Multiple Virtual Interfaces To Connect To Multiple Networks?

Oct 26, 2010

I'm trying to connect one computer to two others in an ad-hoc infrastructure.

[computer 1] ---- [computer 2] ---- [computer 3]

computer 2 is running Linux and has a single NIC wlan0. I want to it to connect to both computer 1 and computer 3 so each computer can talk to the other. No switch is available so it needs to be an ad-hoc setup.

[Code]...

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Debian Configuration :: Maximum Number Of Virtual Network Interfaces?

Feb 11, 2010

What is the maximum number of virtual network interfaces possible?I would like to create around 300 or so. This is needed to simulate a 300 node network.

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Networking :: Virtual Interfaces For Bridge For Performance Testing

May 19, 2011

Now doing some research about performance of Linux switch. I'll start with basic structure of my system: PC1 is connected to PC2 - both have 1 NIC so not much to add.PC2 eth0 is divided in VLAN`s as far as maximum of 4094. Every VLAN has it's own switch (bridge). On PC1 when I run a test I just make VLAN/configure IP address and stream data to IP that's configured for that bridge on PC2.But now I want to add one more interface to each bridge, so I could stream from PC1 through bridge to Virtual interface (just an endpoint out of bridge). I could possibly add one more computer, physical interface to PC1 and make it work, but is there any way to make this work with virtual interfaces, like tun or something? Making just a simple tun interface and adding it to bridge, as you understand, doesn't do the trick, I need some kind of other endpoint that /virtually/ connects to tun interface. Maybe someone has made some kind of script or something? Using Iperf for my tests.

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Fedora :: Can't Create Virtual Machine With QEMU/KVM

Nov 8, 2010

I just install QEMU and virtual machine manager to use virtualization, but virt-manager cannot run properly. I can create a VM, then mount CDROM ISO, startup. With Windows installation, it runs well until format partition step, after that it is disconected and exit with error related to VNC. I dont know why have this problem cause the packages that I installed is from Fedora repo and I think they have been tested.

Here are some infos:

Fedora 14 - kernel 2.6.35.6-45.fc14.i686.PAE
qemu-2:0.13.0-0.7.rc1.fc14.i686
libvirt-0.8.3-2.fc14.i686
virt-manager-0.8.5-1.fc14.noarch

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CentOS 5 Hardware :: About Qemu Kvm Virtual As A Intel Cpu?

May 15, 2010

inter x5405 cpu , centos5.4 x64 , qemu kvm ,kvm setup win2003x64 os, kvm show a qemu virtual cpu,but i will install some software need intel cpu ,it is show need amd/other file support. can i config it as a inter cpu?

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Ubuntu :: Remove 2GB Virtual Drive Created With Qemu?

Jan 23, 2010

I installed Windows XP on my system using QEMU as a 2GB virtual drive in my home directory. I don't want to have it anymore, however I can't get rid of this 2GB used space with windows XP. I can't even delete QEMU, because the command sudo apt-get remove qemu tells me that package qemu is not installed. (however it is there, works, and is able to start Windows XP as usual).

How can I get rid of this qemu/Win XP and have 2GB of my home folder available again?

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Software :: Change The .iso In Virtual Cdrom After Qemu Is Started?

May 16, 2011

How to change the .iso in virtual cdrom after qemu is started?Host is Debian, ctrl+alt+2 doesn't work.

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OpenSUSE :: Virtual Machine Manager Vs. Qemu-kvm Commandline ( Tap Xor Snapshot )?

Mar 28, 2011

I want to experiment with pacemaker, and for that I'd like to start kvm virtual machines with the snapshot option, so that as soon as I stop the vm, all changes are gone and I can start over. Since I couldn't figure out how to setup networking (vm - vm and vm - public) with a kvm commandline without disturbing the Network Manager, I used the Virtual Machine Manager (VMM) for this.

It works now, but I cant see how to use the snapshot option with the VMM. On the other hand, I cant see how I start the resulting vm from the commandline. When I look at the process list, I see the command with these network options:

Code:
-netdev tap,fd=21,id=hostnet0
-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:45:30:b0,bus=pci.0,addr=0x3
-netdev tap,fd=22,id=hostnet1
-device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:84:5b:bc,bus=pci.0,addr=0x6

How would I go about these fd=nn things on the commandline? I guess I somehow have to start the tap devices before, but how?

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Red Hat / Fedora :: Correct A Glitch With Qemu-KVM That Prevents Virtual Machines?

Jul 21, 2010

Is anyone familiar with how to correct a glitch with Qemu-KVM that prevents virtual machines (Windows Server guests) from starting after the Linux host has been rebooted? It gives an error constructing a domain in /dev/sr0 because of /usr/share/virt-manager/virtManager/engine.py line 493 [run_domain vm_startup], /usr/share/virt-manager/virtManager/domain.py line 573 [startup self.vm create()] and /usr/lib/python2.6/site-packages/libvirt.py line 287 [create if ret=-1 raise libvirtError].

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General :: Write Qemu Booting Virtual Machine Output To A File

Apr 11, 2011

I've been trying out qemu to play around with some VMs. It's working well but I keep wanting to be able to view the text (linux boot process) that quickly scrolls by in the qemu window on startup of my linux virtual machine. Is there any way to retrieve this via qemu?

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Ubuntu Networking :: ADVISEADDR: Error In Specifying Interfaces: No Existing Ip Interfaces Found

Jan 7, 2010

I have a weird issue that I have not seen on any forum. My jaunty on DELL studio laptop seems connected to net, but I can not access any network service (ssh, firefox etc.). But when I connect a cable the cable lights blink as it should be and in wireless connection my wifi light blinks.

It was working 2 days ago without problem, and I have not done big changes recently.I removed and reinstalled network-manager and network-manager-gnome. Nothing changed. I see a message in each restart as follows (when Openafs is starting). I can reproduce it with "/etc/init.d/openafs-client restart"

Code:

ADVISEADDR:error in specifying interfaces: no existing ip interfaces found

#lspci

Code:

04:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100
08:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5784M Gigabit Ethernet PCIe (rev 10)
#lshw -c network

[code].....

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Fedora Networking :: Enable 3 Interfaces \ When Start One Interface The Another Interfaces Goes Down?

Jan 25, 2010

I have 3 Interfaces for a different LAN's and when I start one interface the another interfaces goes down.How can it's possible?I configure my ethernets as:

Code:
/sbin/ifconfig eth0 172.16.3.108 netmask 255.255.0.0 broadcast 172.0.255.255
/sbin/ifconfig eth1 172.16.3.109 netmask 255.255.0.0 broadcast 172.0.255.255
/sbin/ifconfig eth2 172.16.3.1110 netmask 255.255.0.0 broadcast 172.0.255.255

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Ubuntu Networking :: Adding Interfaces To /etc/network/interfaces?

Apr 16, 2010

If I try to add a new interface (eth1) to /etc/network/interfaces, I get

Code:
* Reconfiguring network interfaces... SIOCSIFADDR: No such device
eth1: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device

[Code]...

How do I add 2 interfaces and get anyone of them to work, as available ?

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Debian :: Connman Does Not See Networking Interfaces

Jun 24, 2011

I'm using Debian Squeeze with backports turned on and I've installed connman and it cannot see my wireless networking interface. I know my wireless card has a working driver because I have WICD on the same system and it connects just fine.I am using the Enlightenment desktop though and it only integrates with the connman wireless manager - so I would prefer to use this instead of WICD. Anyone have any ideas on how I can get connman working? What extra configuration needs to be done after installing?

I added my user to have the same permissions as root to the /etc/dbus-1/system.d/connman.conf file and I added my tiwlan0 to /etc/network/interfaces as a DHCP connection with no changes in functionality :-/. Been searching around online and reading man pages for the last couple days with no good results. Any input would be awesome!

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CentOS 5 Server :: Error: File /usr/share/man/man1/qemu-img.1.gz From Install Of Qemu-img-0.10.5-1.el5.2.x86_64

Feb 6, 2011

When I try this yum install kvm qemu libvirt python-virtinst qemu-kvm I become this error

Transaction Check Error: file /usr/share/man/man1/qemu-img.1.gz from install of qemu-img-0.10.5-1.el5.2.x86_64 conflicts with file from package kvm-qemu-img-83-164.el5_5.25.x86_64

how can I resolve this error

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General :: After Qemu-img, Qemu Is Not Capable To Detect The C Drive (empty)?

Oct 16, 2009

qemu-img , create any imagerun qemu -fda bootdiskwin98se.img -hda image.imgand No drive C what's going wrong with qemu-img/qemu?

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OpenSUSE Network :: Outgoing Traffic When Using Virtual Interfaces Changed In OS 11.4

Jun 9, 2011

There is a big problem with opensuse 11.4 and virtual interfaces.Until 11.2 outgoing traffic by default was sent by the eth0 address nevertheless which virtual interfaces did exist if any was used.Now there seems to be sent by the last interface listed with ifconfig.The outgoing address in this case will be 10.0.0.3.This is very problematic with smtp control etc.

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Ubuntu Networking :: Using Tether Or Ad-hoc Networks Causes Headaches With Other Networks?

Apr 16, 2011

I am trying to configure my android phone (rooted Eris running kaossfroyo 2.2) to be used as a midi controller. Which I am having enough trouble with as it is but it has raised an annoying issue that occurred a month ago when I used the phones tethering network with my laptop. After connecting the laptop to the phones network (either tether, or an Ad-hoc network created using the network manager) I am unable to switch to other networks. In other words when I'm done with the phone-laptop connection I cannot connect my laptop to my home network! When I click on the other network connection I can see that it is attempting to connect in the upper right corner of the desktop (the network icon) but it will not make the connection.

What happens is that the network indicator will make the little circle graphic as if it is trying to connect but it never will display the other circle as green indicating that it has connected. but when I disconnect from the home network that is not connecting I will get a message underneath that will say that ad-hoc network disconnected! If I am switching from the android tether it will say Android-Tether disconnected etc. Even though when I click on network manager it shows that I am attempting to connect to the home network (labeled LIBERTY in my case) upon disconnection it shows the ad-hoc or tether connection being disconnected.

I am absolutely baffled by this! The issue persists even after deleting the ad-hoc connection from the wireless settings tab!!! I would speculate that for some reason the laptop is attempting to connect to the previous ad-hoc connection despite me wanting it to connect to LIBERTY. I am very confused and hope someone can lead me in the right direction.

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Networking :: Connecting Two Debian Machines Together With Crossover On Different Networks?

Jun 24, 2011

Here is the setup I have. Two debain (squeeze machines) A1(eth0,192.168.33.1, netmask 255.255.255.0) and B1(eth0,192.168.43.1, netmask 255.255.255.0). They both have 3 nics'. So I am trying to connect to each other with a crossover cable and I have added the routes manually. eg: on machine A1 route added was

route add -net 192.168.43.0 netmask 255.255.255.0 gw 192.168.33.2 eth1

and on machine B1

route add -net 192.168.33.0 netmask 255.255.255.0 gw 192.168.43.2 eth1

For project purposes they both have to be on different networks, evn thouhg they are in same room.

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Networking :: Vpn-vpn Bridge Between Two Networks (1x Debian Server, 1x Cisco RVS4000)

Jan 13, 2011

I've two networks (network 1 in the apartment, network 2 in the basement/server room) I would like to build a vpn connection between the two networks. In networks 1 I have a 24h running PC/Firewall/Debian Server. For network 2 I would like to buy a RVS4000. Is it possible to connect the two objects (Debian and Cisco)?

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Debian Configuration :: Networking - Netinst CD - Internet Connection Only Works After Edit The Interfaces And Resolv.conf Files Manually

Aug 3, 2010

I had some trouble with the netinst CD and I had to install lenny with the 6DVDs instead. My internet connection only works after I edit the interfaces and resolv.conf files manually. So my question is: can I do that from the netinst CD before it actually needs the connection to install everything? (otherwise I'll just need to use the DVDs.

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Debian :: Upgrade Qemu And Kvm On Repo?

May 26, 2010

how to upgrade qemu and kvm to version 0.12 on repo?

$ sudo kvm | head -1QEMU PC emulator version 0.9.1 (kvm-72), Copyright (c) 2003-2008 Fabrice Bellard
$ apt-cache show qemu-kvm | grep VersionVersion: 0.12.4+dfsg-1~bpo50+1

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OpenSUSE Network :: Network Manager Default Connection Can Handle Virtual Interfaces?

Jun 7, 2011

I've not found how to configure more than one ip address with network manager.Nor with kde nor with plasmoid network manager.I need several virtual ip addresses for eth0 when the "default" of eth0 is connected i.e. "Connected to Auto eth0" should initialize the virtual interfaces.I have not found no even how to configure the ip address.I think this will be used from ifup config in yast or not?There I have the virtual interfaces but they are not taken from network manager.And last but no least: Is it possible that when using network manager the eth0 is enabled even no user has logged in?

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Debian Configuration :: Xen - Qemu - Fails To Get Into Gnome

Jan 15, 2010

I've just installed lenny from dvd, and am just settling in. I'm curious about virtual machines. so I've installed xen. With xen comes qemu by default. Now the setup I've recently become familiar with is Suse-11 which is quite slick.In Suse, Yast provides a distribution prepared virtual management section for xen, including an installer. Debian's setup is similar but not a clone. I want to try out the installer. Aside from the differences, debian has a screaming deficit. On booting dom0 in Lenny, if fails to get into gnome, badly. I can tell what's probably wrong, but I need to fix it. Now I'm also a gentoo fan and very practised at posting queries, so here goes.

Debian's config for X is somewhat unhelpful. The xorg.conf just states Configured device and configured monitor for its components. If it expanded on just what the settings were it would help. What I have is a frambuffer driver not loadinf or being implemented.

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Slackware :: VDE Networking In QEMU?

Feb 27, 2011

ive been struggling with this for the past 4-5 days, and finally give up trying to solve it by myself. ive been following the guide here: [URL].. everything works up until i get to the iptables command, when i put it in, i get the following message:

Code: iptables v1.4.10: can't initialize iptables table `nat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. this led me to believe that i did not configure my kernel correctly, so i rebuilt my kernel, building in all the modules that were listed. unfortunately, the only ones that were actually present in the make xconfig were

[Code]...

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Ubuntu Networking :: No Longer See Any Networks Under "Wireless Networks"?

Jan 7, 2010

I could use Wireless network. I could see several different networks in my range. Then suddenly the network stoppedworking, and I can no longer see any networks under "Wireless networks".The Wired networks works fine.I tried upgrading ubuntu, but nothing changed. Just to confirm, I rebooted the computer in Windows Vista (Dual boot) andconfirmed that Wireless worked fine there. No hardware problem then.The suggestions I have found on this and other forums suggest looking at the output from iwconfig and ifconfig. But since I'm a n00b at Ubuntu I don't know what to make of it.

This is the output:
emil@emils:~$ iwconfig
lo no wireless extensions.

[code]...

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Debian Multimedia :: VMware Interferes With QEMU / GNOME Boxes

Nov 3, 2015

I currently have GNOME Boxes and Oracle VM VirtualBox installed on my Debian 8 system, and it works well. However, I recently installed VMware Workstation Player 12, and that seems to work too. However, I've noticed that since I've installed VMware, the networking in my GNOME Boxes virtual machines does not work. Also, every time I go to my networking settings, I see virtual networking devices for VMware that are really annoying. Why don't I have virtual networking adapters pop up for VirtualBox or GNOME Boxes? How can I get VMware and GNOME Boxes to play nice together?

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Fedora Networking :: Qemu-kVM Setup Vm Using 2 NIC's Are Not Working

Jan 13, 2011

I am facing some strange problem as using 2 nic's on kvm child vm. Secondary interface eth1 is not working on vm but eth0 is working , i am using routing mode, here below details.Platform --> Fedora 13 (for both KVM host and child vm)Start VM using 2 nics support using below command.

/usr/bin/qemu-kvm -M pc -m 256 -smp 1 -name myguest1 -uuid
5dcb91e1 -nographic -monitor
unix:/var/lib/libvirt/qemu/myguest1.monitor,server,nowait -boot c -drive

[code]....

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Networking :: How To Connect OS 'ubuntu 9:10' As Host / With Qemu As Guest?

Jul 16, 2010

how to connect OS "ubuntu 9:10" as the host, with Qemu as a guest.?I can not connect from the host to geust, how to connect??I use Samba to connect the host to the guest.I was able to ping from guest to host, but from host to guest can not ping .. why?

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