Network problem between the host computers

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• vCenter 5.1 - network problem between the host computers

  vCenter 5.1

  (2) the hosts running esxi 5.1

  I have VM in a single dvSwitch and dvPortGroup on two hosts - VM total 5.

  This is where it gets weird:

  -all VM on host1 can ping/browse all VM on host2

  -VM on host2 can ping/browse all * EXCEPT ONE * VM on host1.

  -All virtual machines can ping Bridge and beyond

  Otherwise said - VM1 on host 1 may VM3 and VM2 host2 ping, but VM3 and VM2 cannot ping VM1.

  No firewall or anything like that in the guests, because VM4 on host1 * CAN * ping VM1.

  Looks like an arp or vNetwork question.

  Thoughts, known problems?

  Found!

  I got 2 ports not tagged in the VLAN for switch problems.

  While everything went on-site in the configurations, hard links to the switch are the root cause.

  Thanks for your comments - he has led me on the way to finally discover the question.

• Lack of communication between the host computers

  Hello

  We have a small installation demo (2 x ESXi5.1 build 799733 hosts) of vCloud Director 5.1.1868405 running build and meet a strange communication with the VMS problem when they sit on different hosts.

  That we have tested with several organizations and different types of OS etc and the behavior is the same, an example would be that if one of the VMS is a Web server of the site can be displayed if from VMs on the same host, however when you separate guests cannot view the Web site. Virtual machines can ping each other wherever they are.

  I hope someone here can help point me in the right direction to solve this

  Thank you

  Marc

  Looks like your pool of network is down.  If you are using a paralytic, routed Org or Org... isolated network looks that transport between the two does not work.

  If virtual machines are on one of these network types and on the same host, it works.  If they are on different hosts, it fails.

  Is what kind of network pool?  VCNI, VXLAN etc.?

  Make sure that the physical network is actually configured to transport data.  for example, VCNI uses a VLAN and MTU to 1524 (suggested min) for transportation between the hosts.  However, you need to configure it on the fabric of network (switch, etc.).

  VXLAN has its own requirements, but it has a way to test the virtual wire.

• Workstation 9 - slow network performance between the host and guest

  I am running windows 8 on the host and installed by 9 trial. Then installed windows 8.1 as a comment system.

  I'm a slow, very slow network between the two.

  If I send files to and from the computer with another guest, transfers are normal, but if I try the same files between the host and the guest, they are really slow.

  I use a bridge connection.

  I read elseware to disable the following on the guest card:

  Large Send Offload v2 (IPv4)

  Large Send Offload v2 (IPv6)

  But that did not help.

  Thoughts?

  Maybe then try Hyper-v, it help you better.

  report this incident to Vmware if you can

  Concerning

• Network problem between the machines Win XP and Win 7

  I have 2 machines, a desktop and a laptop.  The office is currently running Windows 7 Pro (installed on 2010-01-01) and the laptop is running Win XP Pro.

  The desktop (Win 7) can see the laptop (XP) on the network and can access the shared folders.

  However, the reverse is not true.  The laptop can detect the office as a computer on the network.  I can double click the icon and see the files of office that are shared.  But when I try to access the content of the files, I get a message that says I don't have permissions and contact the system administrator.

  I also have a problem with the shared printer (connected to desktop Win 7).  Before the upgrade both machines can print, after the upgrade, the laptop (Win XP) stopped printing.  I installed the XP drivers for the printer (using the functionality of additional drivers) on Win 7, deleted the printer on the XP computer connection and he still added.  The XP machine was able to find the printer on the network, but when I try to print, I get an arror message saying that "(l'imprimante peut être désactivé, pas branché ou les pilotes ne sont pas installés)."

  I think that the two problems are related, but I can't understand where is the problem.  Print and file sharing is 'on' on both computers, the firewall is configured to allow printing the file and shares, folders are set to 'share', with "everyone" under permissions and both machines have the same network name.

  Any ideas? Am I missing something?  Is it possible to reset all default values so I can set up the network again from scratch?

  Thanks in advance a lot.

  Probably, you have a misconfigured firewall and/or do not have matching accounts/passwords user on both machines.
  Here are the steps of general network troubleshooting. Just cannot apply to your situation, so just take the bits that are. It may seem daunting, but if you follow the steps in the links and suggestions below calmly and consistently, you will have no difficulty to implement your sharing.

  Problems sharing files between computers on a network are usually caused by 1) a misconfigured firewall or a firewall neglected (including a dynamic firewall in a virtual private network); or (2) inadvertently run two firewalls such as the firewall of Windows and a third-party firewall. and/or (3) do not have accounts to the same users and passwords on all computers in the workgroup. (4) tries to create actions where the operating system does not.

  In Windows 7, go to control panel > everything in Control Panel > network and sharing Center. Click on "change the advanced sharing settings. You don't want to use the residential group unless you have all Windows 7 machines. If you do and you want to use the homegroup, see Windows 7 Help & Support. Otherwise, in sharing advanced:

  Discovery of plug in the network
  Open the files and printers sharing
  Turn on the sharing section Public folder sharing
  Plug the password protected sharing

  A. configure the firewall on all machines to allow traffic to local area network (LAN) as being approved. With the Windows Firewall, turning on window file sharing and printer as the above will take care of that for you. If you are not running a third-party firewall or you have an antivirus/security with its own firewall component program, then you're fine.  With a third-party firewall, I usually set up the allocation of LAN with an IP address range. E.g. would be 192.168.1.0 - 192.168.1.254. Obviously you would substitute your correct subnet. Refer to the safety of any third party program or the user forums for how to correctly configure its firewall. Do not run more than one firewall. DON'T STOP FIREWALLS; CONFIGURE THEM CORRECTLY.

  (B) to facilitate the Organization, put all computers in the same workgroup. This is done from the System applet in Control Panel, the computer name tab.

  C. create the counterpart of the user accounts and passwords on all machines. You do not need to be logged into the same account on all machines and assigned to each user account passwords can be different; accounts/passwords just need to exist and to match on all machines. DO NOT NEGLECT TO CREATE PASSWORDS, EVEN IF ONLY OF SIMPLE. If you want a machine to boot directly to the desktop (a particular user account) for convenience, you can do this:

  Start > Search box > type: netplwiz [Enter]
  Click continue (or provide an administrator password) when you are prompted by UAC

  Uncheck "users must enter a user name and password to use this computer". Select a user account to connect automatically by clicking on the account you want to highlight and press OK. Enter the password for this user account (when it exists) when you are prompted. Leave blank if there is no password (null).

  XP - set up Windows to automatically connect (MVP Ramesh) - http://windowsxp.mvps.org/Autologon.htm

  D. Si one or more of the computers on your network are XP Pro or Media Center, turn off Simple file sharing (Folder Options > view tab).

  E. create share as you wish. In Windows 7 I usually share the Desktop of the user and the Public directory.

  F. you have the job of file sharing (and tested by exchanging a file between machines), if you want to share a printer connected locally to one of your computers, share of this machine. Then go to the printer mftr Web site. and download the latest drivers for the correct system. Install them on the target machines. The printer must be collected during the installation procedure. If this isn't the case, install the drivers and then use the Add Printer Wizard. In some cases, printers must be installed as local printers, but it is outside this response. MS - MVP - Elephant Boy computers - don't panic!

• How to configure the network between the host (Windows 8) and Guest (Linux)

  Hello

  I am trying to configure network between the host (Windows 8) and Guest (Linux). Guest on VMware Workstation 8.

  Using this network, I want to configure putty so that I can access comments linux to a PuTTY that is installed on the host (Windows 8).

  Thank you.

  Abdul

  To obtain external access to comments (access the guest from the host), you must configure the IP static within the guest (Linux) as below and restart the network (service network restart)

  eth0 is a dynamic IP (DHCP) to get wireless internet access

  eth1 is a static IP address

  

  

• Is it posible to allow access between the host and virtal machine without wired network?

  I want to use my laptop to show him that I did in the virtual work to other people at my home.

  However, the laptop is ofen not allowed access to the network in their office.

  Is it posible to allow access between the host and virtal machine without wired network?

  VMware player

  My virtual machine is filled to the physical network adapter and use the static IP address.

  Brad

  Setting of the virtual machine: filled

  Change that to each host only (what Continuum called VMnet1) or NAT (VMnet8).  Both use a separate virtual NETWORK card to connect the physical computer virtual host, independent of any NETWORK adapter on the host.

  ... Since the machine host (win7) could not get IP, ping fail to VM (192.168.1.5)...

  Because the connection between the guest and the host is through a separate NETWORK card, you must use the 'other' IP address.  Access a prompt on the host computer and type IPCONFIG to view the IP address of VMnet1 and VMnet8 NIC.  Then use this IP address instead of 192.168.1.5.

  And when you have changed the network management modes (i.e. of bridged to host-only), Windows does not automatically renew its IP address.  The virtual NETWORK card uses a different subnet if you need to renew your DHCP lease or change your static IP address to work with the new subnet.

• Difficulty ping between the hosts and guests

  Hello

  I want to establish network connectivity between my host OS (XPsp3) and my guests (CentOS5.5 and Windows 7).

  So far, I can ping between guests, but not between host and guest, or comments to the host.  When I try, I get a message "destination host unreachable".

  When I configured my virtual machines in a first time, I put them to 'Host-Only' and I need to keep it like that for the purpose of what I do with them - which is the problem?

  Ipconfig and ifconfig outs of machines attached.

  Bests

  Adam

  ... If you use VMware Workstation, you could also reconfigure VMnet1 in the 192.168. 8.x subnet using the "Virtual Network Editor"

  André

• LabView RT versionconflict between the host and target

  Hello everyone,

  for my diploma, I work with a compact system in rio (cRIO-9074) with two I/O-modules. After some research, I created a small project which includes an fpga - and a host vi. I wanted to test my project, so I've compiled the fpga vi and you want to run the host-vi. But then I got an error that said that the versions of the software LabView real-time between the host PC and target (is the cRIO-controller meant?) are different.

  As a solution, I was told to check versions and reinstall the software Real Time using MAX. Now my problem is that I don't know where I can check the version and/or how I can solve the problem to get the project running.

  I added the errorwindow (in German) as an attachment.

  I hope you can help me.

  Better subject.

  Schu3

  MAX is measurement and Automation explore National Instruments.  Open, then expand "remote systems".  You should see your cRIO system.  Expand and you will see 'software' in the list.  Right-click on it and choose to install the software.  That will open a window that will allow you to select what software and what version to install on the cRIO.  Install the version of LabVIEW that matches the one that you use for development.

• Disable communication between the host and the virtual machine

  I have VM Server 2.0 and one of the virtual machines has the same name as the server and even if the virtual computer is connected to the host only network it generates the Windows error message: duplicate names exist on the network.

  is there a way to disable communication between the host and the virtual machines? I just need a virtual network that is isolated from my network complete and host also.

  Thank you.

  The GUI Server2 is not to choose the other unused vmnets.  Then edit your file VMX use a different vmnet of 0, 1 or 8.  (which are bridged, host-only and NAT)

  Thus, for example, if your VMX has a line that says:

  Ethernet0.VNET = "VMNet0.

  change to:

  Ethernet0.VNET = "VMNet2.

  (This assumes that you have not used the network Editor to fill the vmnet2 either).

• Comments network connects to the host

  I try to install a Windows Server 2003, standard edition as a guest on Windows XP 64-bit. I'm trying to install a bridged network. The device driver for the NETWORK card in the guest system signals that it does not work because of the inability to connect to a resource. There are no events in the log of the host or guest system events.

  While I don't have a single NETWORK card on the host, I tried the often suggested work around affecting the network bridge device to a specific NETWORK card on the host, that I want it to connect. This had no effect.

  I tried to change the network to a NAT device ' ed and had the same problem - the unit on the guest doesn't seem to be able to connect to the host device. I also tried a single LAN and had the same problem.

  Little help?

  Hello

  Do you have installed VMware Tools on your guests?

  J.

  If you have found this device or any other answer useful please consider the use of buttons useful or Correct to award points.

• How to disable the sharing of files between the host and guest XP PRO?

  Hello my setup is:

  Host of XP PRO and XP PRO comments using NAT.

  How to disable file sharing between the host and guest (do not want to view or access the file share on host comments)?

  In the comments

  I tried to disable simple file sharing in folder options and uninstall

  File sharing and printing of LAN properties but can always see and have access to the

  Organizing actions of folder...

  Help please!

  Then you will need to disable "Microsoft File and Printer sharing" or you need to set restrictions with the GPO. As long as the systems have their default values the value of a Microsoft network allows to use actions.

  If you found this information useful, please consider awarding points to 'Correct' or 'Useful' answers and answers. Thank you!!

• "The profile could not be signed on-line. There may be a network problem or the Windows Live ID service may not be available. »

  "The profile could not be signed on-line. There may be a network problem or the Windows Live ID service may not be available. »

  Please help Thierry

  You can send me a mail on * address email is removed from the privacy * when you got an answer for me.

  Hi ziphovicHlubi,

  When exactly do you get this error message?

  Try the steps from the following link:

  Games for Windows LIVE: you can not connect to LIVE and you receive an error message
  http://support.Microsoft.com/kb/938705
  http://www.Microsoft.com/games/en-us/support/pages/technicalissuesguide.aspx

  If the steps above fail, then I suggest you to post:
  http://windowslivehelp.com/

• I have a network of offices with windows 7 and XP PC 6 PC 7. Each day network neighborhood loses the xp computers. I can always ping them but they do not appear on the network.

  I have a network of offices with windows 7 and XP PC 6 PC 7. Each day network neighborhood loses the xp computers. I can always ping them but they do not appear on the network. The PC xp always had access to the internet and can still ping windows 7 PC normally, but I can't connect to the shares or see them in the network neighborhood. The question seems to come and go during the day and can be due to the network traffic? I am lost at this point. A reboot of the xp PC is not resolved, but a restart of the server main window file 7 pc solves it for a while. Help!

  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

• Sharing data between the host computer stores in different groups.

  I read in several places that sharing of data warehouses between the host in different groups is possible, but I don't get the warm and fuzzies when the hosts are different versions.

  vCenter is 4.1

  Group Alpha is 4.0 vmfs 3.33

  Bravo of cluster is 4.1 vmfs 3.46

  My goal is to move the virtual machines that meet the specific criteria of group Alpha for Cluster Bravo then the availability of flowing freely between clusters.

  The only concern I have is when adding Cluster Bravo to the same host of 3PAR alpha value of Cluster sharing all the data store, Cluster Bravo will try to reformat to vmfs 3.46 break Cluster Alpha to see the virtual machines stored in the warehouses of shared data?  I don't want to present the old warehouses of data to the new cluster only break from old cluster.

  Hello vmsjsn

  ESX/ESXi 4.X supports all versions of VMFS file system.

  Using your example of Alpha and Bravo. Kudos to will write more Alpha. you will be able to cross all hosts on the shared storage.