back-to-back connection between two virtual machines on different ESXi servers

Similar Questions

• 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.

• Configuration connection between two virtual machines on VMware Player

  Hello

  I have a host machine running Windows 7, which is connected to my company's intranet. On this machine, I have two OS guests on VMware Player:

  VM1 - Running Windows Server 2003, in my company intranet

  VM2 - Running CentOS 5, not registered in my company intranet.

  The second of the two is a pre-packaged VM, fully operational to run a complex database system that has been downloaded from the software provider.

  I need to set up the environment such as the VM1, an application can connect to the database running on computer 2.

  For the moment I can do the following with success-

  * Ping the host to VM1 and vice versa

  * Ping the host to VM2 and vice versa

  * Ping to VM1 VM2

  However, I don't do a ping of VM1 VM2.

  Can someone please explain why this is the case? In addition, please suggest me on the best way to get this working environment. I prefer to do the minimum to juggle the VMS as they run important applications. In addition, it is not possible to save VM2 on my intranet, if that would solve the problem.

  Thanks in advance to anyone who takes the time to read and answer.

  EDIT: Just noticed that I am able to access restricted intranet websites through VM2.

  Ahhhh, presto! Easy solution!

  All you need to do is change the 2 virtual computer hardware settings and change the network card.

  RightClick the VM, in settings, then replace the network card of NAT in bridge

  See this screenshot for a Visual:

  http://communities.VMware.com/servlet/JiveServlet/showImage/2-1819012-15730/VMware.jpg

  It's working now?

  See you soon,.

• 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 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

• can we run two virtual machines simultaneously on ESXi

  Hi all

  I created two virtual machines

  1 & gt; Windows2003

  2 & gt; Red Hat Linux 5

  but I'm not able to run two machines at the same time, when I try to turn on the second machine as the other machines it works throw me error saying "resource memory Admission Control failure".

  Second thing can we export machines, we have created?

  Thank you

  Carla

  You'll probably have to remove the virtual machine to add at least 600 MB - have you seen the instructions on post - http://communities.vmware.com/message/1026853#1026853.

• VCenter Server installed as a virtual machine within a ESXi servers it manages?

  Hi all.  I'm new in the world of VSphere... still in my evaluation period.

  I have only a single ESXi server running at the moment but plans to add a second later for high availability, vmotion, increase general capacity, etc.  They are / will be ESXi running on the internal storage and the virtual machines running on a shared SAN.

  Today, I installed VCenter Server 4 on a server at bottom of range/Office that I was carrying around running XP Pro x 64.

  As I was installing I read the guide installation and to my surprise, it seems to recommend that I have installed VCenter Server 4 as a virtual machine on my ESXi host.

  Now maybe I just spent too much time setting up my without new Lefthand requiring a 'witness' during the failover of one SAN to another... but I was under the impression that VCenter Server is not designed simply to host configuration, but is also designed to act as a 'witness' or to take account of quorum whenever a failure scenario occurred on one of my ESXi hosts.  I also noticed the VCenter Server features of a port "heartbeat", which I suppose one would use for the ESXi server heartbeat, but perhaps it is used for "connected mode" with other VCenter servers (I was intending to use only one since it is a small scale installation) I also felt that it would be useful enough to restore a damaged or shot ESXi host.

  So my question is, if my ESXi host dies and it is where I have VCenter Server installed, then high availability will be unable to work?  I guess there are going to be other issues with me unable to access VCenter Server while I have an ESXi host shot, too, as a greater difficulty to get the ESXi up?

  Maybe I'm wrong understand the purpose of the VCenter server... maybe it's not something that's necessary for HA, recovery, etc. and acts only as a configuration tool until something is wrong?  Or maybe I misunderstood the installation guide and they recommend only installing VCenter Server on an ESX box... they don't want this ESX box to be part of the group that manages the server?

  Finally, if indeed they recommend I install this on a ESXi host manages... would I ideally be install this for local storage on the server (where I installed ESXi) or on the SAN (where all my other virtual machines are installed)... or is it just personal preference?

  Thank you!!

  When you add hosts an active hemagglutinin vCenter cluster HA agent is installed on it.  This agent is what is actually the HA.  While necessary to add new hosts in a cluster and configure some specific parameters of vCenter vCenter's agents HA are self-sufficient and can handle HA failover so vCenter is offline.

  You must install the vCenter VM on SAN storage, so that he can use the vMotion, sVmotion, DRS, HA, functions etc. that require a SAN.

  -MattG

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

• Netem VM between two virtual machines? Is this possible?

  Hello

  I would use netem on a linux VM between two other virtual machines to simulate latency. Between Netem needs a machine with two network cards that he can fill. I've set up a VM on vSwitch0, a virtual machine on vSwitch1 and then an another VM with two network cards, one on each vSwitch. I thought that I create this box for use Netem and imitate and then between the two.

  Has anyone ever done something like this? I ran into a ton of problems and want to know if people have tried.

  I got it working by following these steps:

  1. create the computer virtual one with a NETWORK card on vSwitch0

  2. create a VM with a NETWORK card on vSwitch1 b

  3. create a VM n with a NETWORK card on vSwitch0 and vSwitch1

  4. set the port groups to vSwitch0 and 1 for the "Promiscuous" mode accept (from the default of rejection)

  5. set the n, a centOS VM VM for a networking interface using two network cards

  Note: maps network of VM's and b VM were located in the same subnet.

  Once step 5 start working and traffic exchange VM has and through VM n. b I have experienced a strong delay 5ms ping where there was a<1 ms="" delay="" on="" ping="" when="" vm="" a="" and="" b="" were="" on="" the="" same="" vswitch.="" i="" came="" in="" the="" next="" day="" and="" the="" delay="" was="" gone.="" no="" idea="">

  All the tricks to bypass and netem being by default in the installation of CentOS 6.4, I was able to establish conditions as the loss of delay and the package on the transport between the VM and VM n and b degraded as desired.

  The reason that I wanted this to be complicated as it is I can take a virtual machine of vSwitch 0 and pop in vSwitch1 and all of a sudden traffic to and since it undergoes degradation due to the conditions imposed by the bridge n Netem the VM configuration.

• Network sharing between two virtual machines to XP

  Looks like it should be easy, but for some reason I can't make it work.  MacPro with two XP virtual machines running.  I want to share some files between virtual machines.  I tried to put them both in Bridge mode, but I was unable to ping each other.

  Is there anything else I need to do?

  I'm not too familiar with sygate.  As you have discovered, yes Windows Firewall allows for sharing of files across, but it disables ping responses (unless you enable it manually).  If you have Sygate running on one of these virtual machines, I would disable the windows one if you don't have multiple firewalls on the system for you in trouble...

  Open ports 135-139 (TCP and UDP) and also open 445 (TCP and UDP).

  Don't forget to assign points for correct or helpful answer.

• A list of virtual machines to different vCenter servers

  I am running a report that connects to the servers multiple vCenter.  Within these vCenter servers, I have a number of clusters and in each group a subset of virtual machines that I'll call acme VMs with the acmevmnaming convention 1, acmevm3, acmevm2, etc.  They all start with acmevm*.

  Is it possible to create a report that tells me how many acme VMs are in each vCenter, and how many are in each cluster?

  I suspect Re: access on behalf of the cluster of a VM answer this question on the cluster?

• 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

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• How to make a submission even as RDM for two Virtual Machines

  Hi I have a question.

  We have a server ESX4.0 with two Virtual Machines running on it. I presented a 100 GB of SAN storage to this particular ESX host, this storage space must be shared between two virtual machines as RDM.

  But when I add this storage on a computer virtual as RDM, it does not allow me to present the same storage another VM, of RDM is displayed under the name hidden. Is it possible to do so.

  Kind regards

  Khurram Shahzad

  This is only possible with the MSCS clustering functionality.  With the same logic unit or disc number to multiple hosts without clusting will damage the volume of data / as the new system will try to initialize the disk.

  Your RDM may also need to be in virtual compatibility mode to do this.

  The guide of vmware on clustering with MSCS and there should be information about it.

• Network configuration for two virtual machines on a host

  I have two XP running on a Vista 64 host using 6.5 guests.  I would like to power instant message between the two guests.  I use the option open, and each guest can comminicate outward, very well.  However, if I send an instant message from one guest to another, the message can't.  All parameters in the virtual network editor are the default values on the two hosts.  Thank you.

  so IM between two virtual machines should work as well.

  There must be a factor that we haven't talked yet - any ideas?

  ___________________________________

  Description of the vmx settings: http://sanbarrow.com/vmx.html

  VMware-liveCD: http://sanbarrow.com/moa.html

• Two Virtual PC on different host with common shared HARD drive PC: problem

  I configured two virtual PC with win2003 to test Oracle RAC, one on desktop PC (host operating system is WinXP) and 2^nd on my laptop (host operating system is Vista) both virtual PC is using shared drives, pointing to my desktop PC, but these shared drives do not work as hard shared common for virtual machines. When I'm all shared formatting HDD 1 PC other PC watch is not formatted.

  SinghBaba wrote:

  Please, I beg you. find the attached files.

  I tried - scsi1.sharedbus = "virtual" too, but...

  You try to share a virtual disk between two virtual machines using a SCSI reservation.

  VMware Server does not supports drive sharing between virtual machines sitting on different hosts (desktop & laptop).  You can't do that.

  Your two virtual machines need to be on the same host computer.

  Please read carefully the documentation, specifically the chapter "questions to consider when sharing disks"

• Help to connect two virtual machines to internal network

  Hi all

  I have 9 of VMware Workstation, and I installed two identical WinXP VMs. I put them both on the same custom netowrk (VMnet3) setting. In the virtual network on my Win7 host editor I updated VMnet3 'Host-only (connect VMs internally in a private network)', and I have left empty the box "Connect an adapter to the virtual host to this network".

  What I'm trying to do is to connect the two virtual WinXP only between them, a small connection internal, so that a VM could ping on the other virtual computer, but cannot connect to my Win7 (real internet) host.

  Now both show WinXP that they are connected (the icon of the internet with two small screens is there), and they both have an IP assigned. However, does not ping one of them to another IP address.

  Any ideas?

  Thank you!

  Jonathan

  Firewall is turn on the Windows XP machine?