Bridged network a vbox guest

My issue is that i want to connect my vbox-guest (backrack4) with my real Arch box via a bridged connection
but bridged connection for my ppp0 interface is not available in vbox
so i follow that article
http://wiki.archlinux.org/index.php/Sha … _interface
to share eth0 with ppp0 then connect the vbox bridged with eth0 but that doesn't work
do i mess some thing ????

try upgrading the Firmware to the for the router. As the older Firmware is no good and has certain issues with it

Similar Messages

[Solved]Vbox 3.1.2 - Bridged networking stopped working on Arch guest

After upgrading Virtual Box to 3.1.2 (both ose and puel versions apply here) bridged networking stopped working on an Arch guest which I use as a test server.
While writing this post I solved the problem. What I did was to enable NAT on the first adapter and Bridging on the second. After booting into to the guest I did the following;
# ifconfig eth1 up
# dhcpcd eth1
I shutdown the guest and removed the NAT adapter so only the bridged one remained, booted it and voilá for some mysterious and unfathomable reason bridging now works again.

After upgrading Virtual Box to 3.1.2 (both ose and puel versions apply here) bridged networking stopped working on an Arch guest which I use as a test server.
While writing this post I solved the problem. What I did was to enable NAT on the first adapter and Bridging on the second. After booting into to the guest I did the following;
# ifconfig eth1 up
# dhcpcd eth1
I shutdown the guest and removed the NAT adapter so only the bridged one remained, booted it and voilá for some mysterious and unfathomable reason bridging now works again.

(SOLVED) Virtualbox bridged network, windows host, arch guest

I am trying to get my archlinux guest's network working again. It was working before I bridged the connection and changed the adaptor to the bridged one, but I want a bridged connection for certain reasons, so I want it working. This is the result I get when I use sudo dchcpcd eth0:
dhcpcd: version 5.0.7 starting
dhcpcd: eth0: rebinding lease of 10.0.2.15
dhcpcd: eth0: broadcasting for a lease
dhcpcd: eth0: offered 192.168.0.199 from 192.168.0.1
dhcpcd: eth0: acknowledged 192.168.0.199 from 192.168.0.1
dhcpcd: eth0: checking for 192.168.0.199
dhcpcd: eth0: hardware address 00:le:8c:85:a6:4d claims 192.168.0.199
dhcpcd: eth0: send_raw_packet: Bad file descriptor
dhcpcd: eth0: rebinding lease of 10.0.2.15
dhcocd: timed out
I have no clue why it's not working, but I am sort of new to linux and virtual machines. Still, can anyone help me get the bridged connection working?
EDIT: Nevermind, I fixed it.
Last edited by Shade Vortex (2009-09-08 14:48:50)

All I did was unbridge my windows network. You only select the bridged network from virtualbox, don't manually bridge your network!
If you windows network is not bridged with your vm's host only network in the windows networking page, then I dunno what your problem is.

Bridged networking not working with nested VMware Workstation

I am having an issue that I can't seem to find any answer to....
We are running Vsphere 5.5 and I have 2 Guests each running Windows 7 64-bit. Each of these guests has VMware Workstation 10 running on them. When we P2V the systems we followed all the instructions to allow nested VMware Workstation. However, we are running into an issue where the Bridged Networking will not work. Both of the Win7 guests are on the same vlan and all of the VMs in Workstation are on the same network as well. However, while the 2 Windows 7 guests can ping each other and each of the guests can ping the VMs that are hosted locally, they cannot connect to the systems on the other guest running workstation.
I tried to upgrade the Guest NIC to VMXNet3, but that did not help.
All of the research I have done brings me to people who are having the opposite problem (ESXi nested in VMware Workstation).
How can I get the 2 bridged networks to connect?
Thanks!

The ESXi vSwitch to which the outer guests are connected must be configured for promiscuous mode and forged transmits.

Yum config, kernel-header, and VBox guest additions

It appears that I've entered the Twilight Zone in dealing with kernel-header issues and installing OL 5.7 under VBox.
After using VMWorkstation quite happily for a few years, I've decided to give VBox a try. First I struggled with the differences in the way the two products handled networking (host-only and NAT), now I am struggling with getting VBox Guest Additions installed.
The first thing I do after initial OS installation is configure for the public yum server. Next I try to install the Guest Additions - mostly so I can share a directory with the host OS (Win 7) and pull in a bunch of standard scripts, Oracle DB install media, etc. Running the Guest Addition install - VBoxLinuxAdditions.run - complains about packgages, so I get them installed, and finally it complains about the kernel headers - unable to find source of kernel.
Looking around the web there seem to be a lot of 'this worked for me' -- with every solution being a bit different in critical details. I'd like to find not only a solution that will work for me, but also some explanation of the principals involved.
I'm beginning to suspect it may have to do with exactly how one configures 'public-yum-el5.repo'. I've always just enabled the section [el5_u7_base] (enabled=1) and left all other sections with 'enabled=0'. (and the 'u7' could vary, depending on what version I'm working with -- I've used 5.5 and 5.7). I just now built a new machine to try to crack this problem, and this time paid a lot more attention to what else was in the yum repo file. I noticed that not only are the '[el5_u(something)_base] sections:
[el5_latest]
[el5_ga_base]
[el5_u1_base]
[el5_u2_base]
[el5_u3_base]
[el5_u4_base]
[el5_u5_base]but also "ol" sections and "ol - UEK" sections:
[ol5_u5_base]
[ol5_u6_base]
[ol5_u7_base]
[ol5_u8_base]
[el5_addons]
[el5_oracle_addons]
[ol5_UEK_latest]
[ol5_UEK_base]
[el5_unsupported]I'm guessing that since "Oracle Enterprise Linux" is now simply "Oracle Linux", I should be using one of the "ol5" sections, and probably the 'ol5_UEK_latest'. Here's what I have actually installed for an OS:
[root@vblnxsrv01 yum.repos.d]# uname -a
Linux vblnxsrv01.vbdomain 2.6.32-200.13.1.el5uek #1 SMP Wed Jul 27 21:02:33 EDT 2011 x86_64 x86_64 x86_64 GNU/LinuxCan anyone clarify how these fit together, or point me to documentation to do so?
thanks.

DBA(t home) wrote:
After using VMWorkstation quite happily for a few years, I've decided to give VBox a trywhy now VBox? what is better?I'm beginning to wonder, myself!
I could really vent, but I dont' want to come off sounding like some of the vistors to the db forum that complain because Oracle isn't just re-badged SQL Server. But every step has been a struggle for what appears to me to be no good reason. When I first started building personal test systems with VMware, I'd never built a *nix system for myself, and had a lot to learn. But I pretty well had it down in a weekend. This struggle with VBox has been much more difficult.

Qemu bridged networking -- What is the id parameter?

dear arch experts---I am trying to run arch as a guest, that then serves a website to the internet. I think I got pretty far. I am following https://wiki.archlinux.org/index.php/QE … dge-helper .
on the host:
cat > /etc/qemu/bridge.conf
allow br0
allow bridge0
EOF
chmod u+s /usr/lib/qemu/qemu-bridge-helper
I add the bridge
brctl addbr bridge0 eth0
and bring up the link
ip link set up dev bridge 0
now I need to start up.
qemu-system-x86_64 -enable-kvm -m 2048 $* -hda arch.vmdk -netdev bridge,br=bridge0
almost.
>> qemu-system-x86_64: -netdev bridge,br=bridge0: Parameter 'id' is missing
I tried to add id=eth0, but this only gives me a warning that "netdev eth0 has no peer". it starts up, but then I have no networking in the guest.
for a networking qemu guru, this is probably a 10 second question, but I am stumped. help appreciated.
/iaw

hmmm...on a ubuntu host, something like
-net nic,model=virtio,netdev=hn0 -netdev bridge,br=bridge0,id=hn0
seems to work. not sure why, but it does ;-).

[SOLVED] KVM and Bridged Networking

I've got KVM working and a Windows 2008 server installed on a image now, but it's only getting a NAT ip address. I need to get this server onto my main network, on Windows I'd use Virtual Box and Bridged Networking, but I thought I'd give KVM a try out.
I've followed the setup at https://wiki.archlinux.org/index.php/KV … Networking
Using Netcfg
Bridged networking is used when you want your VM to be on the same network as your host machine. This will allow it to get a static or DHCP IP address on your network, and then you can access it using that IP address from anywhere on your LAN. The preferred method for setting up bridged networking for KVM is to use the netcfg package. You will also need to install bridge-utils.
Netcfg#Configuring_a_bridge_for_use_with_virtual_machines_.28VMs.29
And this page https://wiki.archlinux.org/index.php/Ne … _.28VMs.29
I've got a bridge working I believe (all my stuff is DHCP by the way)
Output of ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 metric 1
inet 192.168.1.52 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::21d:7dff:fea9:bb2f prefixlen 64 scopeid 0x20<link>
ether 00:1d:7d:a9:bb:2f txqueuelen 0 (Ethernet)
RX packets 2966 bytes 520670 (508.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2351 bytes 1874150 (1.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth0: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500 metric 1
ether 00:1d:7d:a9:bb:2f txqueuelen 1000 (Ethernet)
RX packets 2977 bytes 570261 (556.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2364 bytes 1875202 (1.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 45 base 0xc000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 16436 metric 1
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 72 bytes 7056 (6.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 72 bytes 7056 (6.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
I've got "bridge" added to my rc.conf as a MODULE which is loaded. (I saw reference to this somewhere else on the forum that this might be needed)
I'm starting my VM with the following command
qemu-kvm -vnc 192.168.1.52:0 -hda Nekomi -m 2048 -smp 2 -net nic
Yet I still can't get an IP outside of the 10.0.0.0 range on the VM.
The VNC line above is because the HOST has not VGA output at all, completely headless.
I'm trying to get this working and trying to learn at the same time. KVM is new to me, as is bridged networking on linux.
Any ideas? Thanks
Last edited by Naijeru (2012-09-18 16:28:20)

Sorry for the delay, bit a PC rebuild occurred :-(
Anyway, I managed to get this working with steps #1-#7 from the linked section. Thanks for that. I did have a few minor issues in getting a DHCP on the host machine itself, turns out I'd missed a single ) from the daemons section of rc.conf. A human error, but difficult to fix as the machine was rendered off the network and without a VGA card... fun!
I diverge, I have this script to bring up a bridge when the qemu-kvm starts
#!/bin/sh
echo "Executing /etc/qemu-ifup"
echo "Bringing up $1 for bridged mode..."
sudo /sbin/ifconfig $1 0.0.0.0 promisc up
echo "Adding $1 to br0..."
sudo /usr/sbin/brctl addif br0 $1
sleep 2
But when the kvm shutdowns it complains it can't find qemu-ifdown script. So I'm thinking of making one but just want to check it over first.
#!/bin/sh
echo "Executing /etc/qemu-ifdown"
echo "Removing $1 from br0..."
sudo /usr/sbin/brctl delif br0 $1
echo "Taking down $1 from bridged mode..."
sudo /sbin/ifconfig $1 0.0.0.0 promisc down
sleep 2
I've reversed the logic here, is the above the correct way to bring down the guest interface?

Tap0.device issues while attempting to start bridged network

i'm trying to get the bridged network working so i can run xen and everytime i try sudo netctl enable xenbridge-dhcp i get this error in journalctl.
-- Logs begin at Wed 2013-05-15 14:16:16 PDT, end at Tue 2013-05-28 18:26:42 PDT. --
May 28 18:25:07 kimbra sudo[23762]: pam_unix(sudo:session): session closed for user root
May 28 18:25:12 kimbra sudo[23764]: jd : TTY=pts/1 ; PWD=/home/jd ; USER=root ; COMMAND=/usr/bin/netctl start xenbridge-dhcp
May 28 18:25:12 kimbra sudo[23764]: pam_unix(sudo:session): session opened for user root by (uid=0)
May 28 18:25:12 kimbra systemd[1]: Expecting device sys-subsystem-net-devices-tap0.device...
-- Subject: Unit sys-subsystem-net-devices-tap0.device has begun with start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/li … temd-devel
-- Unit sys-subsystem-net-devices-tap0.device has begun starting up.
May 28 18:26:42 kimbra systemd[1]: Job sys-subsystem-net-devices-tap0.device/start timed out.
May 28 18:26:42 kimbra systemd[1]: Timed out waiting for device sys-subsystem-net-devices-tap0.device.
-- Subject: Unit sys-subsystem-net-devices-tap0.device has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/li … temd-devel
-- Documentation: http://www.freedesktop.org/wiki/Softwar … e9d022f03d
-- Unit sys-subsystem-net-devices-tap0.device has failed.
-- The result is timeout.
May 28 18:26:42 kimbra systemd[1]: Dependency failed for xen bridge.
-- Subject: Unit netctl@xenbridge\x2ddhcp.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/li … temd-devel
-- Documentation: http://www.freedesktop.org/wiki/Softwar … e9d022f03d
-- Unit netctl@xenbridge\x2ddhcp.service has failed.
-- The result is dependency.
May 28 18:26:42 kimbra sudo[23764]: pam_unix(sudo:session): session closed for user root
tap0.device is not working and i can't find the uml_utilities package anywhere.
help?

Sorry for the rather late response, but I've just been through this issue myself. The tunctl & brctl utilities are now part of 'uml_utliities', which is itself deprecated.
I downloaded uml_utilities and installed it.
I've encountered a bug which appears to be common to all bridged netwroking (the inbuilt VirtualBox bridging demonstrates the same problem). The nature of the bug is that if I bridge with the physical ethernet adapter, only a linux guest VM can see the outside world. THis is true whether the guest is running under VirtualBox or KVM so the issue appears to be generic.
Non-linux guests can see each other and the *host*, but not the rest of the world. Speculations as to the reason include the deprecation of Uml_Utilities, but regardless, I tried something different.
I created the bridge and assigned it a separate subnet. I added some tap interfaces. I ran a DHCP server instance listening on the bridge alone. I set forwarding on, and created a static route enabling my router to find the virtual subnet.
I used dnsmasq for the DHCP as it isn't used by my regular network setup, meaning that I can screw around with it trivially without breaking things. Additionally, I set up the config automatically from my vnet script. I can potentially add multiple virtual subnets this way although I haven't included support in the script as yet. The minimal config hands out addresses from the pool specified on the vnet command line, and I can set up static addresses on the same subnet by referencing the contents of /etc/host and /etc/ethers (it identifies vms by mac address).
This works perfectly, and has the advantage that the virtual network traffic will route via wireless as well as cabled ethernet. It also makes it simple to firewall the virtual subnet and reduces the risk of experiencing minor hassle when my broken vnet code stuffs the ethernet interface.
Ping me if you want a copy of the vnet script, although it's still very much a work in progress.
Last edited by salafrance (2013-09-21 20:02:12)

Bridged network 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 sysctl -w net.inet.ip.forwarding=1
        $ sudo sysctl -w net.link.ether.inet.proxyall=1
        $ sudo sysctl -w net.inet.ip.fw.enable=1
        $ sudo ifconfig bridge0 create
        $ sudo ifconfig bridge0 addm en0 addm tap0
        $ sudo ifconfig bridge0 up
        $ ifconfig
        en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
                  ether 28:cf:xx:xx:xx:xx
                  inet6 xxxx::xxxx:xxxx:xxxx:xxxx%en0 prefixlen 64 scopeid 0x4
                  inet 192.168.100.64 netmask 0xffffff00 broadcast 192.168.100.1
                  media: autoselect
                  status: active
        bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
                  ether ac:de:xx:xx:xx:xx
                  Configuration:
                            priority 0 hellotime 0 fwddelay 0 maxage 0
                            ipfilter disabled flags 0x2
                  member: en0 flags=3<LEARNING,DISCOVER>
                           port 4 priority 0 path cost 0
                  member: tap0 flags=3<LEARNING,DISCOVER>
                           port 8 priority 0 path cost 0
        tap0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
                  ether ca:3d:xx:xx:xx:xx
                  open (pid 88244)
I'm using this with QEMU and the guest VM never gets a DHCP lease. If I `tcpdump -i tap0`, I only see broadcast traffic. Shouldn't I see a mirror of everything on en0? (192.168.100.33, the host doing the broadcasting, is another unrelate, noisy server on my LAN.)
Any ideas?

IGMP snooping may be enabled by default on the 6509. Disabling it may solve your problem.
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/swcg/snooigmp.htm#wp1020466

Virtualbox bridged networking problem

Hi out there.
I'm trying to set up VirtualBox bridged networking as described in the wiki by "the arch way"
Here are the relevant details of my config files:
/etc/conf.d/bridges:
bridge_br0="eth0"
BRIDGE_INTERFACES=(br0)
/etc/vbox/interfaces:
vbox0 nofoo br0
(Where nofoo is supposed to be the user running virtualbox)
And finally...
/etc/rc.conf:
MODULES=(e1000e snd-mixer-oss snd-pcm-oss snd-hwdep snd-page-alloc snd-pcm snd-timer snd snd-hda-intel soundcore bridge vboxdrv vboxnet)
lo="lo 127.0.0.1"
eth0="eth0 up"
br0="dhcp"
INTERFACES=(lo eth0 br0)
So. I added the user to the vboxusers group.
After a reboot, myifconfig says:
br0 Link encap:Ethernet HWaddr 00:21:70:0B:D7:11
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::221:70ff:fe0b:d711/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2001 errors:0 dropped:0 overruns:0 frame:0
TX packets:1561 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:908314 (887.0 Kb) TX bytes:290103 (283.3 Kb)
eth0 Link encap:Ethernet HWaddr 00:21:70:0B:D7:11
inet6 addr: fe80::221:70ff:fe0b:d711/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2039 errors:0 dropped:0 overruns:0 frame:0
TX packets:1569 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:941218 (919.1 Kb) TX bytes:289875 (283.0 Kb)
Memory:fdfc0000-fdfe0000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:4 errors:0 dropped:0 overruns:0 frame:0
TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:280 (280.0 b) TX bytes:280 (280.0 b)
Which should be ok.
My settings in VirtualBox itself are the following:
adapted to:host interface
interface name:vbox0
The start and stop program parameters are left empty.
Now, when i try to start my vm, the following error message occurs:
Failed to initialize Host Interface Networking.
VBox status code: -3100 (VERR_HOSTIF_INIT_FAILED).
Errorcode:
NS_ERROR_FAILURE (0x80004005)
Component:
Console
Interface:
IConsole {e3c6d4a1-a935-47ca-b16d-f9e9c496e53e}
Does anyone of you know what went wrong here?
regards
monk

steve___ wrote:i just "pacman -S virtualbox-ose" but I do not have the file "/etc/rc.d/vboxnet". I searched through the {core,extra,community}.files.tar.gz tar files as well.
Yeah, I have this same issue. I installed virtualbox-ose using pacman and also don't have /etc/rc.d/vboxnet. I've searched the entire machine and it is nowhere to be found. Did you solve it? Anyone got any ideas?

Bridged network connected to wrong eth

Hi all,
I have an Oracle VM server and Oracle VM Manager with network connectivity but am having trouble getting network connectivity for the guest virtual machines.
On my Oracle VM Server, I have networking going through eth0 - the VM server created a bonded interface bond0 that connects to the active eth0. When I created a virtual machine network in the Oracle VM Manager, I was only given the option of choosing ports eth1, eth3 and eth4 in the "Select Ports to include in your network" so I picked eth1. This resulted in created a bridged network that uses port eth1. The problem is that I currently do not have internet connectivity on port eth1.
The question I have is:
1) Do I need to have at a minimum of 2 NICs on the Oracle VM Server? One for the server management and the other for virtual machines?
2) Why does eth0 not show up as an option when selecting ports for the VM network?
Appreciate any insight on this!!!
Thanks,
Nick

Hi,
To design your network architecture, dont forget to take care about:
- Fault tolerance
- Performance
- Security/Isolation
With Oracle VM Manager you can work with a minimum 1 NIC (all networks on the same interface) but this's not secure.
- if you have two NICs, you can create a network (Virtual Machine) and the second NIC to the other Network (more secure). and if you have a VLAN switch you can add the second NIC to the bond0, and create 5 logical networks (more secure & fault tolerance).
I hope this can help you
Best Regards

A solution to no network access in guest OS

Hi.
Host OS: Windows Server 2008 R2 / Hyper-V
Guest OS: Windows Server 2008 R2
Had a problem with "no network access" in guest OS.
However, as many others could not get rid of the Virtual Network card in Device Manager (which also seems to manage the LAN Connection object under Network and Sharing Center > Change Adapter Settings)
After a few hours this seems something like what you need to do to get rid of the faulting Microsoft Virtual Machine Bus Network Adapter ... so the Guest OS can automatically reinstall it. These steps worked for me:
Probable Prerequisites:
0)
- The host OS runs the Virtual Network Switch on one of the physical network adapters or on the same adapter (if there is only one). In my case I run on the 2nd physical adapter.
- Hyper-V Virtual Network manager has a virtual network on one of those adapters.
- The VM with the guest OS is bound to the virtual network
1) Event log > System probably has an event saying something is wrong with the Microsoft Virtual Machine Bus Network Adapter and you need to reinstall it (but how!!!)
Fix Guest OS LAN Connection:
1.a) Hyper-V Manager Actions:
Hyper-V Manager > Shutdown or turn off the Guest OS in
Hyper-V Manager > VM Guest OS > Settings > Network Adapter remove
1.b) Hyper-V Manager VM GUest OS States:
{ No network adapter available for guest OS }
2.a) Hyper-V Manager Actions:
Hyper-V Manager > VM > Start VM Guest OS
2.b) Guest OS States:
{ DM > Virutal network card and Network and Sharing Center > Connection LAN is strangely still available even though the virtual network adapter hardware was removed in step 1 }
3.a) Guest OS Actions:
Go to Network and Sharing Center > Change Adapter Settings > "LAN Connection" object > Properties
Click every protocol etc. and click the uninstall button
3.b) Guest OS States:
{ The LAN Connection object is gone under Network and Sharing Center }
{ The Network card is gone under Computer Administration > Device Manager }
4.a) Guest OS Actions:
cmd > Run as Administrator >
set devmgr_show_nonpresent_devices=1
devmgmt
In device manager goto the network node and uninstall all references to Microsoft Virtual Machine Bus Network Adapter
(In my case I used the guest os for a Windows Backup sysrecovery because of changes in the disk layout thus I also had some additional references now visible to the previous physical network adapters and uninstalled them as well)
4.b) Guest OS states:
{ Device Manager > Microsoft Virtual Machine Bus Network Adapter not present }
5.a) Hyper-V Manager Actions
Shutdown VM Guest OS
VM Guest OS > Settings > Add Virtual network adapter for external network
Start VM Guest OS
5.b) Guest OS States:
{ Guest OS ready for plug and play installation of Microsoft Virtual Machine Bus Network Adapter }
{ Device Manager > Network Adapters > Microsoft Virtual Machine Bus Network Adapter is installed and activated }
{ Network and Sharing Center > Connection LAN object is installed and activated }
{ LAN is connected with network access through the Virtual Network switch in the Host OS }

Thank you for the post. After searching for weeks on end and trying all kinds of solutions, I was finally able to resolve the issue by removing the "Microsoft Virtual Machine Bus" from the Guest machine on Hyper-V.
No matter what change I was applying I kept getting the "169" based IP.
My host system is "Windows 8.1 Pro" with Hyper-V role enabled and my guest machine is "Windows 8 Enterprise". I was starting to question if it's the enterprise machine that may be an issue, but glad this is resolved.
Thank you for the solution.

Problems with SRW224G4 switch and Bridged Network Cards

Hello,
We have recently installed a SRW224G4 switch and have discovered that when we plug our DELL PowerEdge 2900 server into the switch, the switch loses all network connectivity and all of the LED's on the switch start flashing.
The server works perfectly well plugged into another switch, but as soon as we introduce the SRW224G4 into the network, either with the server plugged into that switch or any other, the problem re-occurs.
The only way we found we could eliminate this issue was if we disabled the Bridged Network connection on the two network cards on the server. If we do that, everything is fine, except the network performance of the server has dropped significantly.
The server is plugged into the 1GB ports on the switch, although we tried it on the 100MB ports and received the same problems. The switch reports that the ports are running at full-duplex.
Has anyone noticed this behavior before, and more importantly been able to rectify it.
Thanks in advance for your assistance,
Paul

I had this problem as well with any Linksys 2024 or rackmountable switch.. The trick is, you need to use the network cards management software to "team" or bridged the 2 NIC's otherwise the switch detects a loop and the whole thing locks up. So lame... Windows built in bridge mode stinks dont use it. When you use the Intel management software or Dell or HP's NIc management software you have the option to actually choose "redundant mode" where you can pick a Nic to be the primary, or you can choose Load Balancing where you can essentially double your throughput by joining the 2 nics.
In Windows 2008 Server, you actually do this by going to the Properties on the NIC in Device Manger. the software controls are now built right into the driver. pretty neat. 2003 you can check Device Manager the same way but not sure if it's the same as 2008, you might need to run the actual NIC management app.
Hope this helps
fdigi

Qemu - Bridged networking with wireless adapter

How can I use bridged networking with wireless on Qemu virtual machine? With virtualbox it can be easily done. I don't why in Qemu it is so complicated, maybe virtualbox have completely difference mechacnism on this. I've read the wiki, it looks like impossible to use wireless for bridged networking. If it is really impossible, why virtualbox can do it?
And, in arch wiki's qemu manual, i didn't see how to use NetworkManager there to do bridged networking. Since, I use NetworkManager and disable the others (like netct and dhcpcd), it make it even more complicated. But, maybe it's because me that don't understand. Maybe someone experienced here can give me a way around this?

bagol wrote:How can I use bridged networking
It's up to you to set up the bridged network - or use TAP, e.g.:
ip tuntap add dev <devname> mode tap user <youruser>
ip lin set <devname> up
ip route ...
... and proxy_arp
... and iptables forwarding & masquerade
It's a good learning experience, to set up the network yourself, rather than have VirtualBox do similar things by *magic*

My airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW.

my airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW. If we don't have a solution for this question, can i set my AE to use the IP TV and how??? I'm using a 4th Airport extreme

No, not unless it is simply a network connection.
How is your IPTV being provided.. if it is using a separate vlan or separate vpi/vci in the adsl connection. Who is your ISP?
Is the TP-Link ADSL?
Is the IPTV using a separate voice channel on adsl?
Or a different vlan.
Sorry but it is something where a definite answer is not possible unless you provide all the details.
The setups are unique to each ISP around the world..
Here is one for our local ISP.
http://www.avenard.org/iptv/Setup.html
He has a section on getting this working with apple router over wireless.. look
http://www.avenard.org/iptv/IPTV_and_Wireless.html
Google around and see if other people have had success.. the whole setup is tricky.. and it is hard if nobody has used it who actually understands networking.

Bridged network a vbox guest

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