IPv6 Network Flood with Wireless Hyper-V Virtual Network
Recently, on our core switch (also our layer 3 router) we regularly see a high cpu load. This cpu load is the cause of packet loss and bad connections. This is happening for almost two weeks now.
Network inspection shows us that there is a flood of IPv6 Neighbor Advertisements originating from what seems the same IPv6 Address but from different Hardware (MAC) addresses. In each second there are up to a 1500 packets per second advertising
the same IPv6 address. See below for more details about these packets.
Tracing the MAC addresses to their owner learns that all clients are using Windows 8 with Hyper-V and that they have an External Virtual Network bound to their Wireless/WiFi Network Adapter. Removing this virtual network stops sending
those packets. Because multiple hosts are involved it may be necessary to remove this network on all of these hosts.
As is visible in the following packet dump this is an unsolicited neighbor advertisements, resulting in an update in the neighbor table on our IPv6 router. These updates are probably the course of the high cpu load.
Frame: Number = 188594, Captured Frame Length = 86, MediaType = ETHERNET
+ Ethernet: Etype = IPv6,DestinationAddress:[33-33-00-00-00-01],SourceAddress:[00-24-D7-76-C4-68]
- Ipv6: Next Protocol = ICMPv6, Payload Length = 32
+ Versions: IPv6, Internet Protocol, DSCP 0
PayloadLength: 32 (0x20)
NextProtocol: ICMPv6, 58(0x3a)
HopLimit: 255 (0xFF)
SourceAddress: FE80:0:0:0:6F7:E4FF:FE4A:2267
DestinationAddress:
FF02:0:0:0:0:0:0:1
- Icmpv6: Neighbor Advertisement, Target = FD00:4953:4E4C:20:6F7:E4FF:FE4A:2267
MessageType: Neighbor Advertisement, 136(0x88)
Code: 0 (0x0)
Checksum: 3593 (0xE09)
- NeighborAdvertisementFlag: 536870912 (0x20000000)
R: (0...............................) Not router
S: (.0..............................) Not solicited
O: (..1.............................) Override
Rsv: (...00000000000000000000000000000)
TargetAddress:
FD00:4953:4E4C:20:6F7:E4FF:FE4A:2267
- TargetLinkLayerAddress:
Type: Target Link-Layer Address, 2(0x2)
Length: 1, in unit of 8 octets
Address:
00-24-D7-76-C4-68
Because the target address is the same in all packets but the MAC address changes, it seems that there is something on the hosts that is forwarding/proxying these packets (and only those packets) back to the network it came from, but only
after changing the targetlinklayeraddress in the advertisement. This process is described in
RFC4389.
One host with this problem on the network will not resolve in a flood. Only when more hosts with this issue are active the flood occurs. It seems that two or more hosts are required to magnify the packets send by the others.
Hyper-V on Windows 8 makes use of a Network Bridge in software to enable the use of wireless network adapters. Is this the cause of all those packets?
Some of the hosts also had Windows Phone 8 SDK installed. The installation of this SDK enables some networks in Hyper-V. Maybe some configuration change is made enabling the proxying of those packets back to the network they came from?
After removing the SDK the hosts are still transmitting too much packets.
The first occurrence of this flood was on the day after Microsoft’s update Tuesday. Is it possible that one of the updates may be the cause of this? There is one mayor update
KB2770917 which includes updates to DHCPv6 and NDIS library’s. Again, removing this update does not solves the problem.
Updating our switch/router to a higher level of firmware may lessen the impact, this is something I can try. But it shall not solve the problem, the switch is not the source of the packets.
Hopefully somebody recognizes this issue. All ideas are welcome.
Regards,
Martijn
Hello today we have a little breakthrough. Our Accesspoints are connected to a Cisco C2960S Switch. We have enabled storm control on the switches. This blocks only the multicast packets that were flooding the wireless and the wired network.
We determined this using PRTG snmpv2 connection to the Cisco. Whenever the network flooding was occurring the packets per seconds went in the thousands. We now have put the following code on the Gbit interface: (The last line with the storm-control setting
fixed flooding the network at least partially because the multicast packets cannot leave the Accesspoint to travel to other accesspoints or to wired devices.)
Hope this helps others as well.
interface GigabitEthernet1/0/7
description AP06
switchport trunk allowed vlan 1-99,101-4094
switchport mode trunk
speed 1000
duplex full
storm-control multicast level pps 200 50
end
Similar Messages
-
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* -
How do I uninstall "Hyper-V Virtual Ethernet Adapter #2"
Visual studio 2013 Update 4 just installed on my PC, I'm not sure why but I guess it was an automatic update from Unreal Engine 4 SDK?
The problem I have though is it killed my Ethernet and made my whole PC unresponsive unless I unplugged the Ethernet cable. So I uninstalled the 30 odd things that update installed on my PC and I have it working when my Ethernet Port and Hyper-V Virtual
Ethernet Adapter #2 are enabled, but I cannot find out how to uninstall this and get my PC back to normal...
On my Ethernet port under properties everything is unticked but a new option "Hyper-V Extensible virtual Switch" and on "Hyper-V Virtual Ethernet Adapter #2" everything is ticked but "Hyper-V Extensible virtual Switch" and "Microsoft
Networkd Adapter Multiplexor Protocol".
My internet is now coming through Hyper-V Virtual Ethernet Adapter #2 and my Ethernet Port is saying No Internet Access.
I've clicked uninstall several times and restarted but it just wont go away and return to normal.Hello Scaramoosh,
Visual studio 2013 Update 4 seems has nothing to do with your "Hyper-V Virtual Ethernet Adapter #2", so this issue seems not related to Visual Studio Setup forum.
Please try refer to the following blogs to see if you can remove it:
http://blogs.technet.com/b/jhoward/archive/2009/07/01/hyper-v-how-to-remove-disabled-virtual-network-adapters-from-the-parent-partition.aspx
http://cloudtidings.com/2013/11/20/removing-the-ghost-hyper-v-vnic-adapter-when-using-converged-networks-after-in-place-upgrade-to-w2012r2/
If you still cannot remove it, try ask this question to IT Pro related forum for your specific OS version, for example:
https://social.technet.microsoft.com/Forums/windows/en-US/home?category=w8itpro
Regards,
Barry
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey. -
hi,
I have hyper v running on windows 8.1 pro laptop and have 2 virtual switches configured. the ethernet connection works great all the time.
The wireless has problems with wireless networks. half pics up my home network as i want and the other half picks up a wireless network in range which is not mine.
How do i fix this, as when this happens i cannot use the virtual machine to connect to the network or the internet
My home wireless network is the KamelsHome which you see is connected thus the laptop works. But as you can see the VEthernet (Wireless) is picking up a NETGEAR88.
Screenshot attached
Anyone help please??Hi Dominic,
Would you pleaes let me know if you have removed the wireless profile and then to see if the issue persists?
How to Delete or Forget Wireless Network Profiles in Windows 8.1
http://www.7tutorials.com/how-delete-forget-wireless-network-profiles-windows-81
Have a nice day!
Regards,
Steven Song
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. -
Routing of Network Traffic Between VLANs on a Hyper-V Virtual Switch
I am trying to discover how network traffic generated by reads and writes to RDVH User Profile Disks is routed through my network. I have a pool of Hyper-V
desktop vm’s in their own VLAN (vlan1) with their own NIC bound to a Hyper-V Virtual Switch. On the same server I have another management NIC for the OS on a different VLAN (vlan2) and finally on another server I have a virtual machine which hosts the User
Profile Disks. The VM that hosts the User Profile Disks is on the same VLAN as the management NIC for the OS (vlan2).
When tracing the flow of network traffic to and from the User Profile Disk VM it all comes through the vlan2 NIC on the server where the virtual
desktop VMs reside and nothing comes through the vlan1 NIC on this server. I would have expected the traffic to the virtual desktop VMs to come in through the desktop VMs VLAN NIC (vlan1).
This leads me to two possibilities as to how the desktop vm’s on vlan1 get their data to and from the User Pofile Disk vm on vlan2 without routing.
The desktop vm’s Hyper-V Virtual Switch automatically routes the User Profile Disk traffic from vlan1 to vlan2 internally using a virtual switch learning algorithm
Hyper-V itself handles all reads and writes to the User Profile Disks and since that is using the management NIC for the OS it is already on vlan2 and so the network traffic never leaves vlan2.
Any comments on the reason for traffic taking the path it does (as outlined above) as opposed to being layer-3 routed from VLAN1 to VLAN2?Thanks for your reply Brian. I think your last paragraph above is what I have set up:
If you simply forward one VLAN to one physical NIC and the VMS on the corresponding External Virtual Switch simply end up on that VLAN without Hyper-V doing anything at all - but this dedicats one physical NIC per VLAN.
The Virtual Machines NIC that the vSwitch is patched to and the NIC for the OS are on different VLANS (both NICs are plugged into un-tagged ports on my switch).
The vNICs on the VM's are not tagged to a VLAN (The VLAN ID\ 'Enable virtual LAN identification' box is unticked)
My vSwitch is set up as connected to 'External Network' and isnt shared with the management network.
What I am trying to get at is how would network traffic on the VLAN my vm's are on get to the VLAN that the NIC for the OS is on without going through the router (even though a routable path is available) ?
Is it possible the 'learning algorithm' referneced in a Technet article below is involved here (sorry I cant post links)?
For the virtual machine to communicate with the management operating system, there are two options. One option is to route the network packet through the physical network adapter and out to the physical network, which then returns the packet back to
the server running Hyper-V using the second physical network adapter. Another option is to route the network packet through the virtual network, which is more efficient. The option selected is determined by the virtual network. The virtual network includes
a learning algorithm, which determines the most efficient port to direct traffic to and will send the network packet to that port. Until that determination is made by the virtual network, network packets are sent out to all virtual ports.
Thanks,
Andrew -
Hyper V virtual machine randomly loses network connectivity
I have an extremely odd issue happening on one of my Hyper-V virtual machines. For no apparent reason and completely sporadically my virtual machine will lose all network connectivity. It is a linux Vyatta firewall image. Digging through
the logs shows nothing at all when the machine actually goes offline, but when the machine starts back up I just get a Warning stating the network driver on my virtual machine loaded but has a different version from the server. Server Version 3.2 Client
version 0.2
I've ran the integrated services setup disk and nothing has fixed this. When the VM loses connectivity it is for no apparent reason, sometimes at 1am sometimes at noon, just happens. The only solution is to reboot the VM to bring it back online.
Has anyone else seen this or know of a fix for it? Its starting to slowly drive me insane!
Hyper V Server - Windows Server 2008 R2 - Hyper V Manager Version 6.1.7601.17514
VM - Linux Vyatta Core 6.3I tried downloading new integrated services disk setup for linux, but Vyatta wouldn't work with it so I was kind of stuck there. And not sure where you are talking about changing NIC to legacy at. I did disable some TCP chimpney settings as
per an article I found, but not sure if it will fix it or not. Sometimes the machine will stay on for a month before losing network connection and sometimes it comes in spurts and happens like 3-4 times over a couple days. Its really odd -
As title,
I have a domain with 2 DCs (both virtual machines) in 2 different Hyper-V Hosts, and one of the perform as a PDC Emulator.
Dose this case make any influence on the time sync?
i.e. Both of the VMs sync with Hyper-V host, instead the other host should sync with the PDC Emulator?
I run w32tm command and get the following result:
C:\Users\Administrator.DOMAIN8>w32tm /query /computer:dc8.domain8.local /source
VM IC Time Synchronization Provider
C:\Users\Administrator.DOMAIN8>w32tm /query /computer:hpvzh05.domain8.local /source
VM IC Time Synchronization Provider
HPVZH05.domain8.local works as PDC server.
How can I make DC8 sync with HPVZH05?Awesome!
It looks like your PDC is successfully pulling time from an external source. DC8 is not longer pulling from Hyper-V so that is good.
When you set a client to pull from a source ( and in this case DC8 is pulling from NT5DS, which tells it to pull from the PDC), and it CAN'T pull from that source, it will default to Local CMOS Clock. This is likely an easy fix.
First, check connectivity:
- Method one- Download Portqry and run this command: portqry -n HPVZH05 -p both -e 123 and see if the results say listening, or
- Method two- Run this command from DC8: w32tm /stripchart /computer:HPVZH05
If you get any kind of error using method two, it's a connectivity issue. (Maybe you have a firewall that's blocking access?)
The other cause of this, and probably more likely in your case, is that your PDC isn't properly advertising as a reliable time source, so DC8 isn't 'allowed' to pull from it.
Try running this command on your PDC: w32tm /config /reliable:yes
Then go restart time on your PDC, THEN DC8 again. (net stop w32time & net start w32time)
Here's an article you can reference: http://technet.microsoft.com/en-us/library/cc794937(v=WS.10).aspx
- As always, if you find my posts to be helpful, please mark it appropriately. Thank you :)
Chris Ream -
Why am I getting flooded with calls from a deactivated verizon wireless number?
Im not a verizon customer, but after spending several hours on the phone with their customer support to no avail, Im turning to the community for help.
The past two days Ive been flooded with calls from verizon wireless numbers in MO (mostly 636 area code). I try answering, no response. I call back, and after ringing twice I get a prerecorded message - "The verizon wireless number you're trying to call has been changed, disconnected, or is no longer in service", even when calling back seconds of the original call. Occasionally a voicemail is left, and its nothing but exactly 5 seconds of silence.
This is getting very frustrating, since its almost constant. Im averaging 4 calls an hour between the hours of 10am and 9pm, with a couple up until 11pm. I have no idea whats going, and its getting quite irritating, and Im burning through minutes checking and deleting all the voicemails.
Just for reference, some of the numbers are -
>Phone numbers deleted<
And they all give the same verizon message when called.
Any ideas or suggestions are great.
Message was edited by: Verizon ModeratorYour device may have this option:
If I get an annoying call, I will add them to my contact list as Spam and block the number on my device. The call will go straight to VM and funny, a message is never left.Problem Solved.
Also I agree with Jim, if this is a new number for you, just have it changed. -
Impossible connecting with wireless network Netgear WNR 2000
I can not log on to my wireless network (Netgear WNR 2000) with my macbook. My other PC:s work fine and connect always. My Macbook only connect after I have restarted the router. When I use my Macbook in other places I can connect with wireless network. What is the problem?
I'm assuming that you're using the right network password! After that, the most common causes of difficulty are:
- The router not set up for DHCP and so cannot allocate an IP address to the MacBook
- The router has "MAC" Address Authentication (a security feature - don't mistake MAC for Mac[intosh]) turned on and the AirPort MAC address isn't in the pass list.
- The default "Automatic" location in System Preferences > Networks has been modified so that it no longer works.
Bob -
Sangean digital radio with wireless network music player
Hi. I have just purchased a Sangean digital internet radio with wireless network player.
Can I link this to itunes on my 2010 Mac?
Is there any way I can easily convert my Itunes library to windows media player to support this functionality?A couple of things that come to mind to check... Does the SBWM device connect to your wireless network when you turn it on? SBWM device on power up / init finishes with 2 solid green indicators. If it ends with 2 solid green then you can check the network assigned IP from the remote / system settings, make sure you're on the same subnet as your PC. If SBWM lights end up with solid blinking green the SBWM did not connect to the wireless network. If this is the case make sure your DSL modem has the radio turned on. Make sure the DSL modem has the 802.b protocol turned on. Do you use network security. The highest level security the SBWM will support is WEP 28, if your new DSL modem is set for WPA or higher the SBWM will not be able to connect to the network. If you were using WEP security on your old cable modem the key in the new DSL modem will need to be identical to what you had on your cable modem, or you'll have to do the SBWM network setup via USB to load the new WEP key to the SBWM device. Hope these suggestions are of use. W3
-
We have Optus ADSL broadband (Australia) running wireless via a 'Sagemcom F@ST 3864 Optus' modem. We have an Airport Time Capsule (for backup) and an Airport Express (for music connection) and Apple TV.
I currently have the Time Capsule (Express & TV) set up as their own network, sharing the internet from the Optus wireless network. Is creating a new network like this the best scenario? Or is it better to extend the existing Optus wireless network? Besides extension for range/reception, does either option have particular benefits over the other?
Other than internet, we just stream music/movies from laptops & phones to speakers/TV, so the thinking behind creating a new network rather than extending, was based on the assumption that the Time Capsule may be better at data transfer than the modem?
Any thoughts would be great!Is creating a new network like this the best scenario? Or is it better to extend the existing Optus wireless network? Besides extension for range/reception, does either option have particular benefits over the other?
I would say it is about 50-50.. 6 of one .. half a dozen of the other.
Any scenario you dream up has a set of good points and bad points.
So some factors.
1. I presume you have the TC plugged by ethernet into the Sagem modem.. bridged and creating its own network.. using two different network names keeps the local connection load contained which is good thing.
Wireless is fundamentally poor. It has limits on being only able to handle a single client at a time.. so time slicing between all the clients. plus it is half duplex.. which is simply it can either transmit or receive not both.
In comparison, Ethernet via modern switches.. can have multiple computers talking to each other at once and can both tx and rx, ie full duplex. So using extend wireless is very bad. It means wireless is much slower as each packet is double handled.
Using multiple APs connected back by ethernet to a main router is definitely the right way to go. They can be in roaming or setup with completely different names.. that is almost irrelevant. It is easier though to manage when you do the naming and setup so you specifically allocate load.
For example.. if the TC is doing backups from TM on the computers and you start having streaming issues with the Apple TV, split the load, by naming the 2.4ghz and 5ghz differently in the TC.. and force backups to 5ghz and streaming to 2.4ghz (or visa versa depending on range issues etc.).
2. Network wise different AP should all live happily together in one happy family. The reality is that more equipment leads to more issues. I have been hitting a few issues lately with wireless routers exactly in your setup being unavailable to the network, if a computer happens to be connected to the wrong router.
For example a computer connected to the Sagem, whether by wireless or ethernet, may have issues backing up to the TC. It shouldn't but it does. I am seeing Mavericks in particular giving strife this way.
Someone recently posted a very helpful article on why this is happening.
https://discussions.apple.com/thread/5863043?tstart=0
For most people in a home network you do not want the hassle of running a server. But you can see that sometimes things start getting complicated.
Best principle is hope for the best.. set it up as per what you have done.. if it bombs or is unstable.. work back through the issues.. there are some alternative configurations which are more complicated.. eg running the TC with static IP, that seems to alleviate some of the bugs.
3. What works is best. Whatever the theory.. try a few setups.. what you setup that works well for you is the best even if the theory says no.. that is bad.
eg One post a person used roaming network with all AP's fixed to the same channel, so the idevices would roam properly. This is wrong.. but works.. normal roaming network laptops seem to be able to roam well but idevices do not. Pick what works.
https://discussions.apple.com/message/25138680?ac_cid=tw123456#25138680 -
Create Hyper-V Virtual Machines with Windows PowerShell searching on hostname
Dear,
I’m a starter with PowerShell scripting an I’m looking for a script to create Hyper-V Virtual Machines with Windows PowerShell. The idea behind the script is that when I run the script its first searching for the hostname. I’m migrating 24 locations and each
location have a different hostname like xxx-SRV001. The script needs to use the first 3 signs from the hostname in this case “xxx” and create 2 VM's with below info:
Virtual Machine 1 2048MB
Virtual Machine 2 4096MB
Location D:\VM\
I can create VM's with Powershell into Hyper-V so only a script to first searching for the first 3 characters of the hostname is enough.
Example:
It's the intention that when the script runs it's looking for the hostname. As example we have hostname 000-SRV001
If the script see the first 3 characters of the hostname, in this case 000 he need to create 2 VMs with name xxx-SRV002 and xxx-SRV004
I think it must be something with
$hostname = "Get-WmiObject -computername $Machine Win32_Computersystem"
But then when i'm asking for $hostname he must give me back the hostname and if the hostname is 1 of the 24 locations then he need to create 2 vm's in Hyper-V with above info.
Can you help me or do you have a script for this?Juste use :
$vram = 1GB*$vRam
You not need the "
Do you have any error with the creation of the VM?
# Variables
$VMName = Import-Csv "C:\HyperV\input.csv"
$VHD = 40GB
$VMLOC = "C:\HyperV"
$vSwitch = "External"
$ISO = "C:\ISO\WinServer2012R2.iso"
$LocationCode = $env:COMPUTERNAME.Split("-")[0]
# Create VM Folder
MD $VMLOC -ErrorAction SilentlyContinue
Foreach ($VM in $VMNames)
$Name = $VM.name
[int64]$vRam = $vm.vram
$vram = 1GB*$vRam
$VMName = $LocationCode+$Name
# Create Virtual Machine
New-VM -Name $VMName -Path $VMLOC -MemoryStartupBytes $vRam -NewVHDPath "$VMLOC\$VMName\Virtual Harddisks\$VMName.vhdx" -NewVHDSizeBytes $VHD -SwitchName $vSwitch
# Configure Virtual Machines
Set-VMDvdDrive -VMName $VMName -Path $ISO
Start-VM $VMName
# Configure Virtual Machines
Set-VMDvdDrive -VMName $VMName -Path $ISO
Start-VM $VMName
Error message
New-VM : '003' failed to modify device 'Memory'. (Virtual machine ID 8F5F32D7-F1A0-4A68-8B01-CA6661869A1E)
Invalid startup memory amount assigned for '003'. The minimum amount of memory you can assign to this virtual machine is '32' MB. (Virtual machine ID 8F5F32D7-F1A0-4A68-8B01-CA6661869A1E)
A parameter that is not valid was passed to the operation.
At line:20 char:5
+ New-VM -Name $VMName -Path $VMLOC -MemoryStartupBytes $vRam -NewVHDPath "$VM ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (Microsoft.HyperV.PowerShell.VMTask:VMTask) [New-VM], VirtualizationOperationFailedException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.NewVMCommand
Set-VMDvdDrive : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:23 char:5
+ Set-VMDvdDrive -VMName $VMName -Path $ISO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Set-VMDvdDrive], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.SetVMDvdDriveCommand
Start-VM : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:24 char:5
+ Start-VM $VMName
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Start-VM], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.StartVMCommand
Set-VMDvdDrive : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:27 char:5
+ Set-VMDvdDrive -VMName $VMName -Path $ISO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Set-VMDvdDrive], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.SetVMDvdDriveCommand
Start-VM : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:28 char:5
+ Start-VM $VMName
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Start-VM], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.StartVMCommand
New-VM : '003' failed to modify device 'Memory'. (Virtual machine ID C0FC835E-36D4-462E-BD21-69A75A808E2F)
Invalid startup memory amount assigned for '003'. The minimum amount of memory you can assign to this virtual machine is '32' MB. (Virtual machine ID C0FC835E-36D4-462E-BD21-69A75A808E2F)
A parameter that is not valid was passed to the operation.
At line:20 char:5
+ New-VM -Name $VMName -Path $VMLOC -MemoryStartupBytes $vRam -NewVHDPath "$VM ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (Microsoft.HyperV.PowerShell.VMTask:VMTask) [New-VM], VirtualizationOperationFailedException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.NewVMCommand
Set-VMDvdDrive : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:23 char:5
+ Set-VMDvdDrive -VMName $VMName -Path $ISO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Set-VMDvdDrive], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.SetVMDvdDriveCommand
Start-VM : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:24 char:5
+ Start-VM $VMName
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Start-VM], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.StartVMCommand
Set-VMDvdDrive : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:27 char:5
+ Set-VMDvdDrive -VMName $VMName -Path $ISO
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Set-VMDvdDrive], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.SetVMDvdDriveCommand
Start-VM : A parameter is invalid. Hyper-V was unable to find a virtual machine with name 003.
At line:28 char:5
+ Start-VM $VMName
+ ~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (003:String) [Start-VM], VirtualizationInvalidArgumentException
+ FullyQualifiedErrorId : InvalidParameter,Microsoft.HyperV.PowerShell.Commands.StartVMCommand -
How to route traffic across subnets when one NIC is a hyper-V virtual switch?
Having a bit of a problem with a hyper-V environment which does not seem to route network traffic on two different subnets between each other.
If it were a purely physical server with two NICs and a gateway set traffic would automatically be forwarded between the two different subnets.
However when one of those NICs is a hyper-V virtual switch this simple routing no-longer seems to work and no traffic gets forwarded between subnets?
Situation is:
Hyper-V server with two NICs
NIC 1 = 192.168.0/24 - main Internal company network.
NIC 2 (hyper-V virtual switch.) = 192.168.1/24 - connects to ADSL internet router
Virtualized Domain Controller.
One or two virtualiszed NICs as necessary
How then does traffic get routed between these two subnets? If RRAS has to be configured to do this where is the best place to do it, on the hyper-V host or on the virtualized domain controller?
Thanks,Hi ,
You can create an internal virtual switch and configure an IP for it (I assume it is 192.168.1.2/24) .
After you enable RRAS in hyper-v host there will be two gateways for different subnets .
" NIC 2 (hyper-V virtual switch.) = 192.168.1/24 - connects to ADSL internet router "
The problem is here ,if these VMs need to access internet .
So , these VMs can not configure their gateway same as the IP of internal virtual switch , you may set VM's gateway as the ADSL internet router's IP meanwhile add a static route entry for every VM .
Please refer to the Syntax :
route add -p 192.168.0.0 mask 255.255.255.0 192.168.1.2
Hope this helps
Best Regards
Elton Ji
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place. -
(Request for:) Best practices for setting up a new Windows Server 2012 r2 Hyper-V Virtualized AD DC
Could you please share your best practices for setting up a new Windows Server 2012 r2 Hyper-V Virtualized AD DC, that will be running on a new WinSrv 2012 r2 host server. (This
will be for a brand new network setup, new forest, domain, etc.)
Specifically, your best practices regarding:
the sizing of non virtual and virtual volumes/partitions/drives,
the use of sysvol, logs, & data volumes/drives on hosts & guests,
RAID levels for the host and the guest(s),
IDE vs SCSI and drivers both non virtual and virtual and the booting there of,
disk caching settings on both host and guests.
Thanks so much for any information you can share.A bit of non essential additional info:
We are small to midrange school district who, after close to 20 years on Novell networks, have decided to design and create a new Microsoft network and migrate all of our data and services
over to the new infrastructure . We are planning on rolling out 2012 r2 servers with as much Hyper-v virtualization as possible.
During the last few weeks we have been able to find most of the information we need to undergo this project, and most of the information was pretty solid with little ambiguity, except for
information regarding virtualizing the DCs, which as been a bit inconsistent.
Yes, we have read all the documents that most of these posts tend point to, but found some, if not most are still are referring to performing this under Srvr 2008 r2, and haven’t really
seen all that much on Srvr2012 r2.
We have read these and others:
Introduction to Active Directory Domain Services (AD DS) Virtualization (Level 100),
Virtualized Domain Controller Technical Reference (Level 300),
Virtualized Domain Controller Cloning Test Guidance for Application Vendors,
Support for using Hyper-V Replica for virtualized domain controllers.
Again, thanks for any information, best practices, cookie cutter or otherwise that you can share.
Chas. -
I dont understand why Microsoft people can't make things simpler
They are LITERALLY MOTHER F%^%RS
Bill Gate and his team need to learn hot to F^&&IN make things.I agree, the use of profanity is completely unnecessary, we've all been in the stressful situation before, it still doesn't call for it.
The network you're receiving an APIPA IP on, is it the virtual switch you setup when adding the Hyper-V role? If so you can get the warnings to go away and subsequently hide the adapter by unchecking the 'Allow host to manage this adapter' setting
in the virtual network manager of Hyper-V manager on each node.
Tim is also right, while disk resources are only owned by one node, you'll see the mount points for CSVs located under C:\ClusterStorage.
More importantly, you're logon issue sounds directly related to group policy. I had the same problem moving to Server 2012. Yes, it's an annoying process but in the end you will have a working cluster. I did the following steps:
1. Install 'Group Policy Manager' on one of the nodes in your Hyper-V cluster
2. Log on to the node you installed it on with a Domain Admin or appropriately endowed account that can edit the GPO relating to 'Logon as a service right'
3. Edit the GPO where you specify who can logon as a server, OR if you don't have one, make a new one and link it to the OU with the Hyper-V nodes
4. Add permission to that right for 'NT Virtual Machine\Virtual Machine Group', save and exit
5. As an optional step I would reboot the nodes so you make sure they get it
The problem here is that security group ONLY exists on servers that have Hyper-V installed on them. If you add the group on a machine that has it to the GPO, the SID for the group is saved and each Hyper-V host will know what group that is. The
problem you're having right now is most likely related to a GPO changing 'Logon as a service right' to your needs and setup in Group Policy. When a Hyper-V node starts up, it automatically adds the right for that group to the local security policy, however,
group policy's auto refresh will remove it after a certain amount of time.
Maybe you are looking for
-
A new round of Junk Mail after installing Safari Beta 3.0
In the days since installing and religiously using Safari 3.0 beta on my MacBook Pro with 10.4.9, I am seeing a huge increase in Mail being sent to the Junk folder via Automatic Junk mail filtering. I have not changed any Mail settings. This is mail
-
I try to open my itunes and all i get is the user agreement and then nothing happens once i click on agree. Can anyone help
-
Add link for a script from Indesign menu
Dear, Is it possible to add a new menu on Indesign top menu near help for exemple. And it is possible to lanche a script from it ? thanks !
-
Anybody bought a US N85? Still have the rebooting problem? After consider buying it but holding back for a couple months b'cos of the rebooting issue, I cannot bare it anymore " Just wanna make sure I don't get the rebooting one - -
-
Adobe Acrobat Professional 7.0
Per a service rep, as Adobe Acrobat 7.0 is no longer supported, I downloaded the current CS2 program for Adobe Acrobat Professional 7.0 and the correct serial number to use with this version. I installed the program, but get the following error messa