Disable communication between the host and the virtual machine

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• What is the interval of time between the virtual machine Linux and ESXi host synchronization?

  I have ESX5.0 with a centos6 installed on this linux virtual machine.

  After the installation of vmware for Linux virtual machine tools, I activated the time synchronization between the virtual machine linux and ESXi host through vmware-toolbox-cmd.

  I wonder what is the interval of time between the virtual machine linux and ESXi host synchronization? If I quickly time OS system, when the OS system time will sync back to the ESXi host?

  According to http://www.vmware.com/files/pdf/techpaper/Timekeeping-In-VirtualMachines.pdf:

  By default, the demon checks the guest only once per minute operating system clock.

  However, depending on whether the guest is behind or in front of the result is different. So, please read the section "periodic synchronization" (at least) in the document mentioned above.

  André

• No network connection between the virtual machines on different hosts ESXi

  I have several 5.0 ESXi hosts in a cluster managed by vCenter Server 5 and I have network problems:

  1. [Host A] running a virtual machine can ping any other computer virtual running on the [host A] great!
  2. A virtual machine running on host [B] can ping any other virtual machine running on [B] home - very well!
  3. [host A] (from the ESXi console) can ping any virtual machine running on [B] home - even better!
  4. [B] home (from the ESXi console) can ping any virtual machine running [host A] - beautiful set!
  5. A virtual machine running [host A] can not ping any virtual computer running on host [B] and vice versa - bad, very bad!

  So basically the problem is that the virtual machines can communicate on hosts. It is a major problem that I need to fix, for obvious reasons.

  Networking on all hosts is configured exactly the same way: a unique and standard vSwitch with a pair of gigabit network cards grouped, vmkernels configured for the vMotion, NFS and network management and a group of ports configured for the VIRTUAL local area network used by the VMs. (vMotion works fine on hosts, storage vMotion works very well too.) All virtual machines are servers Windows (2003 and 2008).

  Reason #3 and #4 above, my assumption is that #5 must be the result of an ESXi/vCenter configuration issue and not a problem with the switches of material upstream. Is this a reasonable assumption?

  Whatever it is, can anyone offer suggestions on how can I fix? It is quite annoying as I'm pretty sure that these hosts are configured in the same manner as those of our production cluster, which does not at all these problems!

  Thanks in advance for any help you guys can provide.

  To be honest, it looks like a problem with your physical network-

  How is the physical network configured - are NIC connects it to the same physical switches? Are the virtual machines on the same subnet? If this is not the case, they are able to ping the gateway sbnet? Can you piing host IP address from the virtual machines?

  I also moved it to a forum more approiate.

• Unable to connect to use Windows XP mode on a Virtual Machine, cannot share files between the Virtual Machine and host

  Because of the need to run some XP programs, I ordered Win7 Pro and installed a Virtual Machine with XP Mode.

  Managed to get it going somehow, but does not connect to my home network (can't see any other computers, which seems to be common with the host of Win 7, but here, I managed to install quick links to other computers - they will not work in XP Mode), even if the Internet connection is working perfectly.

  In addition, I can't find a way to share files with the host country, drive C appears to be different from that of the hosts with no common points (where it is currently stored beats me).

  I can access a USB key, but only at a price to make it unavailable to the host and the attempt to release his capture when running XP Mode failed.

  Hello

  The question you posted would be better suited in the TechNet Forums. I would recommend posting your query in the TechNet Forums.

  http://social.technet.Microsoft.com/forums/en-us/w7itpronetworking/threads

• Script of PowerCLI to measure the number of host and its virtual machine in each cluster

  Hello

  I'm trying to create a script on regular which gives an output of the host and virtual machine into a cluster of vcenter as below counties.

  Cluster:                                                      VMHost                         VM's

  Cluster01                                                     04                                  15

  cluster02                                                      02                                  35

  Simply using a sample onliner

  Get-VMHost | Select @{N = "Cl"; {E = {Get-Cluster - VMHost $_}} name, @{N = "NumVM"; E={($_ | Get - VM). County}} | Cluster of kind, name

  any ideas? Thanks in advance

  Kind regards

  Subash.

  Try this:

  Get-Cluster | Select Name, @{N="Host Count"; E={($_ | Get-VMHost).Count}},  @{N="VM Count"; E={($_ | Get-VM).Count}}
  

• Networking between the virtual machine with the operating system Linux in VMWorkstation

  I'm new to Vmware Workstation 7

  I had installed vmware workstation on XP. I created two virtual machines with RHEL 4. I am unable to network between two virtual machines.

  I can't make a ping a machine to other Linux, which is the operating system on both the machine. However, cannot connect ftp or can't see computer networked in computer > network under linux...

  I had used the guest network only on both the machine with the same adapter vmnet8 (considering as switch) and have assigned static IP address at a time

  ORDI1 - 192.168.42.21

  COMP2 - 192.168.42.10

  and also have installed vmware tools on both the machine...

  can someone help me on this...

  muzaffar700 wrote:

  I can't make a ping a machine to other Linux, which is the operating system on both the machine. However, unable to

  ftp connection or may not see computer networked in the computer > network under linux...

  Disable all firewalls in your linux guests.

  I had used the guest network only on both the machine with the same adapter vmnet8 (considering as switch) and have assigned static IP address at a time

  ORDI1 - 192.168.42.21

  COMP2 - 192.168.42.10

  and also have installed vmware tools on both the machine...

  can someone help me on this...

  Host-Only is VMnet1, you used only NAT. static use of intellectual property and switch to DHCP for now. Make sure that the VMWare DHCP Server service is running. Put network cards in comments to "host-only '.

  Post your host ' ipconfig/all'.

  AWo

  VCP 3 & 4

  Author @ vmwire.net

  \[:o]===\[o:]

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• no connectivity between the virtual machines on the guest only network

  I have trouble getting the network connectivity between two Windows 7 computers using a guest only network virtual in VMware Player.  Each virtual machine is able to get a (unique) IP address via dhcp and can ping itself and the bridge, but could not reach the other system.  I looked on my host computer adapter VMnet1 in Wireshark and saw incoming icmp packets in, but nothing is returned new.  My vmnetdhcp.conf file is unchanged with the exception to add a line to set the default gateway on my guests.  It was an attempt to solve this problem, and the same behavior was observed before changing anything.  Here are the details for this network segment:

  subnet 192.168.184.0 netmask 255.255.255.0 {}
  range 192.168.184.128 192.168.184.254;            # by default allows up to 125 VM
  option broadcast-address 192.168.184.255;
  option domain-name-servers 192.168.184.1.
  option domain-name "localdomain".
  routers option 192.168.184.1;  # This is the line, I added
  by default-lease-time 1800;
  Max-lease-time 7200;
  }
  host VMnet1 {}
  Hardware ethernet 00:50:56:C0:00:01;
  fixed-address 192.168.184.1;
  option domain-name-servers 0.0.0.0.
  option domain-name ";
  }

  Is there a problem with my configuration somewhere, or is it just a limitation of VMware Player?

  You may need to allow ICMP traffic of WF with Windows 7 as OS.

  André

• What is the rate of transmission between the virtual machines connected to the same virtual switch?

  Hi guys,.

  I am trying to determine if the rate of data transmission between virtual machines connected to the same virtual switch is equivocal to 10 GB ethernet or faster.

  Thank you

  MK

  If it's the same vSwitch in the same ESX, should be the speed of the bus

• How to share between the host drive and the virtual machine in the car?

  I wanted to use my virtual XP to print using my old printer that the printer driver can only support XP. But I can't find a way to link my host and the virtual drive, because my file is located in the host drive.

  1 change the settings of the virtual machine

  2. go to the Options tab

  3. Select shared folders

  4. Select always enabled

  5 Add the folder that you want to use

  6. Select map as a network drive in Windows prompt

  

  If you find this information useful, please give points to "correct" or "useful".

• Dedicated network adapter to the virtual machine and the host computer not let can visit his profile

  OK, here's my question, I know how to give themselves a phyiscal nic to a vmware, but I wanted to take it one step further and do not leave the host send or receive data from this network card, only the virtual machine can use this network/NIC...

  Here's my reasoning, I have to network conections, one is for my internal/field network and the second is a direct connection to the internet (Comcast) I don't want to use to separate the machines have for internet connection, I want to be on the same machine phyiscal and have just the vmware machine talking to comcast... is it possible?  I am running VMware workstation 7, last update.

  Thank you

  Cdrshm

  I assume you are using a Windows host?

  If Yes...

  -first set up networking networking with vmnetcfg.exe

  -assign vmnet0 to the network card for the internal network

  -assign vmnet2 to the network card used for direct access to the internet

  -Right-click on the map network-icon in the systray and access the properties of the network adapter for vmnet2

  -Disable all other protocols and the Protocol of vmware_bridge for this network adapter

  result: a virtual machine that uses vmnet2 can directly access the internet and the host has no IP address for this network adapter - and therefore cannot use it.

  _________________________

  VMX-settings- WS FAQ -[MOAcd | http://sanbarrow.com/moa241.html]- VMDK-manual

• No communication between the Bluetooth SD - BT2 and PocketPC SD card

  I use an SD - BT2 (PA3271U) card in a Microsoft Pocket PC (also referred to as 'Microsoft PocketPC 2003') 4.20.00. I use the latest driver Toshiba 5.01 C and the card is recognized by the Pocket PC (Medion MD 95450 / MDPPC 150). I can connect to my mobile phone and GPRS connection is accumulation with no problems.

  But later at this point in time, the connection is established but dead... no connection to anyone. It seems that the communication between the Pocket PC and the card SD - BT2 is broken on the software side.

  Anyone have an idea (or a working driver) for this problem?

  Thanks in advance

  Karl

  Hello

  Have you tried to reinstall the drivers or software for SD - BT2?
  In my opinion, you should check this option.
  Also, I found a brand new version for PDA Bluetooth Stack (Bluetooth software and drivers).
  Check out this site.
  http://APS.toshiba-tro.de/Bluetooth/pages/download.php.

  Good bye

• No communication between the printer and the Red computer on switch flashing printer does on every time I turn it off

  I get a message there is no communication between the printer and the computer. Printer is all-in-one HP Officejet 4315v. Have uninstalled and reinstall the software and unplug the USB port and plug it back. Repeated several times. Still no communication. Exclamation red light next to 'on' and green button 'on' butter is flashing all the time.

  You have a hardware failure of the printer.  Contact the manufacturer for support.

• communication between the printer and the computer stops

  Original title: printer problem

  Without rhyme or reason communication between our computer and the printer just stops (often!)   Why?  and how to fix it?

  Hello

  ·                         try to uninstall and reinstall and use the latest printer drivers VISTA for your model of the manufacturer of the printer

  You can also track information to try to solve your problems of printer below

  read the printer correct that information the slot microsoft, including the 'fix - it' and the information of the links to the other

  Solve printer problems

  http://Windows.Microsoft.com/en-us/Windows-Vista/troubleshoot-printer-problems

  and read this microsoft tutorial too

  Introduction

  This tutorial is designed to help you identify and fix the problem printer common windows problems, including print errors, or errors, and other issues that could prevent you from printing. This tutorial does not cover printing problems related to specific programs. Printing problems can be caused by cables that are not properly connected, corrupt, drivers, incompatible drivers, the printer settings, missing updates and problems with your printer.

  How to use this tutorial

  For best results, complete each step before move you on to the next. Try to print after each step before moving on to the next step.

  http://Windows.Microsoft.com/en-us/Windows/help/printer-problems-in-Windows

• Encrypted L3 Communications between the TOWER and WLC?

  Hi all

  I work with a client who wants to put the towers away to their WLC (a 4402). The problem is that communications between the TOWER and WLC must be secured, even through their private Wan! I have a few questions that result, if someone is able to help you;

  1. I can't know if and what method of encryption is (is it AES etc.?) used on connections between towers and the WLC and what are the steps?
     1. The terminology can be a problem here, it's not a wireless mesh, just classic LAP for WLC
  2. EXTENSIVE customer network is already encrypted (IPSec VPN via VPLS) in parts - what is the consequence of execution of AP<-->WLC with end to end (if possible) on a network encryption EXTENDED with IPSec, i.e. double encryption?

  Strange but true - pointers will be greatly appreciated... Phil.C

  With a controller of the 4400 series, the control traffic between the AP and the regulator is already encrypted AES.  The user traffic is not encrypted.  If you use a 5508 controller all traffic between the AP and the controller is encrypted AES.

  For what is running the traffic through a VPN, it should work.  The issue I see with this is with the MTU in general.  The controller will drop all packets with a payload of less than 32bytes data.  According to the MTU over the VPN I've seen packets getting fragmented and it is a question.  If you use one of the versions CAPWAP (5.2 or newer) discovery dynamic MTU is part of the Protocol and this MTU problem does not really exist.

• ESXi host goes to the State and the virtual machine does not restart on other host does not

  Hi all

  I'm looking for a solution, in which case the host goes to the State and the virtual machine on it does not restart on a different host (they'll just gray) does not not what could be the problem here and how to fix it

  later when the failed host returns upward machines either go to motor off the coast of the State, or they show that under tension

  While the host is down or not responding do not I am able to ping the host ESXi (5.5) and able to ping the default gateway and the DNS servers of the host itself

  Yes AF, the answer to all these questions is Yes, it is a HA and DRS cluster active, I tried restarting mgmt service, we use a shared storage (storage iSCSI HP 3PAR and left hand)