Security on the Virtual Switch

Similar Questions

• How to leave the virtual switch as a physical switch law in esxi 5?

  Hello.

  I have Esxi5 installed on a server with 3 physical network card (they are supported and found in Esxi) on that Esxi I installed a virtual-SIN (NexentaStor) machine. The first network adapter is connected to the router, the second network adapter is connected to a PC. DHCP is enabled on the router. Normally on a real switch all connected pc should automatically get an IP address from the server (router), or must be able to communicate when they have a fixed IP address. This does not work on the virtual switch. One of my virtual pc Gets an IP address in a range of false, and I can't connect a real PC at this switch

  2 questions:

  1. Should what settings I use in esxi5 to get virtual pc the good IP address?
     
  2. Is it possible to connect a real pc directly to the second NIC in my esxi server and use the virtual switch as a true switch? In this way, I can use the Gigabit Nic for a fast and direct connection to the virtual NAS and can connect to the internet via the switch?
     

  

  Any help would be appreciated

  Pieter

  ESXi does not NAT unlike VMware Server or Workstation/Fusion.

• Changing the virtual switch name

  Hello

  Is it possible to change the name of the virtual switch, for example, when you create a new vSwitch in VI Center it starts with vSwitch1 can change you it to vSwitch2 providing their isn't another switch with this name?

  Thank you

  you change the esx.conf you need to reboot (be sure and create a backup of esx.conf... /etc/vmware/esx.conf_backup /etc/vmware/esx.conf cp)

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

• change the virtual switch to the virtual hub

  Hallo,

  all the networkadapters are virtual switch. How can I change to a hub? I'd like to sniff my networktraffic with a guestsystem, but that only works with a hub. Or can I change some settings to do this with esxi?

  version: ESX Server 3i, 3.5.0 110271

  MfG

  Mario

  You can set it on a vSwitch or Portgropup

  Click Edit, switch or PG-> Security-> Promiscous Mode-> accept

  Take a look at the Config Guide http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_3_server_config.pdf

  If you also want traffic on your pSwitch, you create a mirror on your pSwitch port.

• Mix the virtual switch different type in a Cluster and a data center.

  Can I mix standard virtual switch and a virtual switch distributed in different hosts to a Cluster/DataCenter? Can I vMotion virtual machine to a host of switch distributed to a host of standard switch and vice versa? Let's assume that the hosts have the same port group name (but have virtual swaitch different type), in the same data center, and have the same subnet IP vMotion.

  You can mix standard switches and distributed, that's what we call hybrid architecture... but to be able to migrate virtual machines between virtual switches, you must the vSphere 6 and again there are some limitations, like not be able to migrate from VDS vs.

  Have a look here for more details on the cross switch vMotion: http://www.vladan.fr/vmotion-enhancements-vsphere-6-0/

• Assign comments NIC to the virtual switch / Portgroup

  All,

  After many search on these forums and the API reference guide, I can not find a solution to the following problem, we are going to have...

  We use the Perl SDK to clone existing Virtual Machines and create new virtual switches and exchanges. However, what we can't understand is how to assign a NETWORK adapter on a virtual computer for the new virtual switch / Portgroup.

  We would like to be able to create two new virtual machines and a new switch and add the two virtual machines to the portgroup on the switch so that they can communicate. At a later stage, we also want to be able to add a physical NETWORK card from the host to the new switch.

  The making through the vSphere Client is quite simple, but we need to automate the task.

  No indication on what we should do is appreciated. If it's easier to do using other APIs (such as Web Services), we are open to try this instead...

  Thanks in advance,

  Andy

  Take a look at this script as an example on how to upgrade ports of an individual vNIC GRPE - http://communities.vmware.com/docs/DOC-10112

• Network management - only the virtual switch

  I installed latest ESXi 4 Update 1, which is available. I m running Active Directory LAB on several virtual servers Windows 2008 R2 and one of them acts as a router with RRAS role. I m creating 3 different subnets and one of them must be only virtual - no material connection NIC in the interface of ESXi´s it seems that I can't do this, while creating the new switch virtual it forces me to select NIC it becomes a problem, because if I use a virtual switch for Windows 2008 router has the physical NETWORK map It will come to mean that the cable is disconnected. And I need a virtual connection between virtual servers only, that they will be the single subnet between them and communication to physical clients will go through this router´s of Windows 2008 NIC that is not supposed to be physical.

  How can I archive with ESXi?

  You can create a vSwitch without attached Teddy.

  Do not select any NIC, or delete them after the creation of the vSwitch.

  André

• The virtual switch configuration

  Hello

  I configured Vswitch on ESX4.0 connected with a teddy bear.

  There are Cisco catalyst 4503 L3 switch configured with several VLANS at the other end. I have configured the switch port trunk with dot1q encap mode that ends on the ESX4.0 server. Service console is configured with IP default VLAN, which is accessible from the other VIRTUAL networks. One of the virtual machine with Win2k3 OS is installed, but after configuration, I am not able to ping default gateway of VLAN respective or any other property intellectual VLAN.

  Can anyone guide me where I go wrong and how to correct the problem?

  Set the Group of ports to the VLAN specific you want the virtual machine to be on.  Do not put any VLAN ID in the virtual machine, just plug it into the port group.  If you have other virtual machines, or other on this virtual machine network interface cards that need to connect to the other VLAN create other Port groups for each VIRTUAL local area network required.

• How to set up the virtual switch vmnet0 so in fact, it behaves like a switch.

  Hello

  I have a problem:

  My configuration is:

  host of CentOS 5.3 using vmware server 1.06

  3 clients (all centos 5.3 with vmware tools) installed

  web01

  DB01

  backup01

  The three guests have public ip and use the bridged (vmnet0) network

  The backup01 backups web01 and db01 every night.

  My supplier can see that traffic on its poort switch that connects the host to the internet, and he wants to charge me for it.

  The three guests (and host) are all on the same subnet. It is the local subnet traffic that does not use a gateway.

  It seems the traffic between hosts is diffuse on my physical eth0 on the host. When I have some files between guests, it also appears on the page from my supplier of PCs followed AY. (Just likecommunication between 2 physical host computers are on the local network when you use a hub instead of a switch)

  I thought it was probably the only way to vmware would work when using network bridges. Because the host doesn't know anyting on the clients ip numbers.

  But when googleling abot this I found several docuemtents (for vmware server 2) telling me that vmnet0 is actually a sort of virtual switch.

  If this is true this virtualswitch should know other mac adressess clients (arp who a..) and she must stop the internal traffic to leave the material.

  Is not what is happinging. It looks more like a virtualhub instead of virtual switch.

  So I was wondering if there are ways to configure the vmnet0 somehow. I was hot, but I can't find anything about it.

  I don't want to change the bridged mode or coz internal use of the intellectual property of the plan is to spit the separate web01 and db01 to vmware guests in the furture.

  Does anyone have any suggestions?

  My idea was to put an additional physical switch between me and my switch to suppliers, but that seems to be a ridiculous solution.

  Any help is welcome.

  Concerning

  Hans Groot

  VMserver don't use virtual switches: it uses virtual hubs. They are mislabeled - probably because "virtual switch" sounds more sexy than "virtual hub".

  You can't change their behavior to be more like a switch

  ___________________________________

  VMX-settings- VMware-liveCD - VM-infirmary

• Problems with the revival of NIC in the virtual switches

  We have implemented a vlan trunking and during the installation, I found some, but not all of my cards are not detect a 'down' State in vmware. I have tried rebooting all equipment and it did not help. I double checked the configurations, and they are the same, I see. I was wondering if anyone has had problems with this.

  In the picture below I would normally see a red X in the State of the NETWORK adapter binding after a few moments, and the other NETWORK adapter will pass traffic. On 5 configured hosts, this seemed to be the only NIC that is not down to the virtual center when I stopped the switchport. Then when I restarted the swtich, I checked 5 guests for the correct path failover. Strangely, my other hosts 2 has actually detected the card NETWORK went down but the failover does not occur and the virtual machine went unresponsive to the outside world, even if their State of link does show and X! Failover detection is set to bind the State.

  All but one host is 3.5.64607, the other is 82663. My next step is to update and bring it to past versions. I hope that this will work.

  Hello

  I had this same problem with my HP and mezzanines of broadcom cards blades.  After many hours with tech support, we realized that this patch fixed: ESX350-200802401-BG.

  Hope that helps!

  Kelly Burton

  COMPUTER systems engineer

  Banner Health

• NSX 6.1.5 - distribute Firewall rules are not applied to the empty virtual switches

  Hi all

  We have a big problem since we have improved the NSX to version 6.1.3 to 6.1.5.

  I get a bug following this procedure:

  . In vSphere Client--> NSX, create a new virtual switch

  . Distribuer distribute the firewall, create a rule to deny traffic between two survey periods. Example: source: all, destination: all, service: all, Action: reject, applies: the new virtual switch

  . Connect two VMS to the virtual switch and you can test the other (this is false due to the firewall rule)

  . Publish ANY changes on the firewall distribute (could not be related to our rule. Example to change its name to another rule), and the rule starts to operate.

  Additional steps:

  . Remove the firewall rule

  . Identify the virtual machines in the virtual switch

  . Re-create the firewall with applies rule: the virtual switch (still empty)

  . Connect the virtual machines and ping between them. Yet once, the rule does not work.

  . Publish ANY changes on distributed firewalls and the rule starts to operate.

  NSX version 6.1.3 and 6.2.0 both work correctly. But I can't downgrade to 6.1.3 or upgrade to 6.2.0. 6.2.1 upgrade involves the upgrade of several other components.

  I use the following versions:

  . NSX 6.1.5

  . vCenter Version 5.5.0 Build 2414847

  . ESXi, 5.5.0, 2718055

  Please, any ideas?

  Thank you very much

  D.

  She seems to be a bug in 6.1.5 NSX and there is no solution for this yet. There are workarounds, but none of them apply to my "fully automated" environment

  We need to wait for a fix or upgrade to NSX 6.2.1 requiring an upgrade of several components as well.

  D.

• Virtual switch with virtual bases DMZ

  Hi all

  trying to wrap my hands around it.  Sure you can have an ESXi installation without creating a virtual switch OK?  I have a scenario where they have 3 all current hosts to run ESXi 5.x.  It have a physical NIC card which is plugged in the demilitarized zone on the firewall and another NETWORK card inside network.  They want to get up some virtual machines in the DMZ.  I was under the impression that if dididn can't you have a virtual switch with a virtual DMZ then it would be a security risk.  Is the separate physical NIC enough?

  Thanks in advance!

  It doesn't matter what you need a virtual switch in order to have something to connect to the VM too.  If you like inside the network and a DMZ network then you can set up a separate virtual switch for each NETWORK card, that way you have separation virtual switch and physical NIC.  This way VM is placed only on the demilitarized zone would only speak and other DMZ VM inside VM is placed on the virtual switch inside would only speak to those.  Because of the way virtualization works it should be not to mention and the operating system is not between the two.  Now if that's enough, it's your security staff.  Some COMPUTER security requires a complete physical separation of workloads DMZ, some require only virtual separation.

• the virtual button that lights up the wifi turn on

  on my iPhone 4 the virtual switch in settings > wifi (which is disabled) will switch on when I touch it, touch it, slide or something else I can think of doing.  The touch screen responds normally otherwise.

  Hello DVeneski,

  Thank you for using communities of Apple Support.

  If I understand your message that you are unable to activate the WiFi on your iPhone 4. Yes, I understand the need for a Wi - Fi connection. I use it a lot myself. In a situation like this, I recommend the following steps:

  If the WiFi is gray or Sun on your iPhone, iPad or iPod touch

  Check if the problem persists after each step:

  1. Make sure you have the latest version of iOS.
  2. Tap general settings > reset > reset network settings. This will reset all network settings, including password WIFI, VPN, and APN settings.

  Best regards

• Can not pass traffic with label of vmware virtual switch fabric 10 GB

  Hello

  I need to understand how to move traffic labeled VMware VST to these virtual Fabric switch. Blades IBM HS22 connecting internally to the virtual switch between ports 1 to 14. I use 2 external ports (17-18), one connects to the Netgear switch and another to the other switch to virtual fabric. Did the same on the other virtual fabric switch. My Synology rackstation is configured with LUN iscsi that connect to the Netgear switch and I would like to connect my HS 22 rackstation blades. My main concern is that I can't ping the IP of netgear on the same interface vlan. I can ping my Synology diskstation to the netgear which are in the same vlan. NETGEAR and BNT switches are connected by cables DAC SFP +.

  

  Even VLAN is also configured on Netgear switch. The default pvid is set as 1 on all interfaces, can I disable this? Do I need to use tagpvid-penetration on all interfaces.

  SH run

  Current configuration:
  !
  version "7.8.7.
  switch type "IBM Networking OS virtual fabric 10 Gb Switch Module for IBM BladeCenter"
  iscli-new
  !
  timezone system 295
  ! Europe/Denmark
  Advanced System
  !

  SNMP-name of the server "BNT01".
  !
  hostname "BNT01".
  !
  !
  enable access userbbi
  !
  INT1 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT2 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT3 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT4 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT5 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT6 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT7 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !

  INT8 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT9 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT10 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT11 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !

  INT12 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  INT13 interface port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  interface INT14 port
  switchport trunk allowed vlan 1, 16-50, 3998-4000, 4095
  output
  !
  EXT1 interface port
  switchport mode trunk
  switchport trunk allowed vlan 1, 16-50, 3998-4000
  output
  !
  EXT2 interface port
  switchport mode trunk
  switchport trunk allowed vlan 1, 16-50, 3998-4000
  output
  !

  !
  VLAN 1
  the name "Default".
  !
  VLAN 16
  name "VLAN16".
  !
  VLAN 17
  name "VLAN17".
  !
  VLAN 18
  name "VLAN18".
  !
  VLAN 19
  name "VLAN19".
  !
  VLAN 20
  name "VLAN20.
  !

  .

  .

  .

  .

  .

  .

  ..

  VLAN 46
  name "VLAN46".
  !
  VLAN 47
  name "VLAN47".
  !
  VLAN 48
  name "VLAN48".
  !
  VLAN 49
  name "VLAN49".
  !
  VLAN 50
  name "VLAN50".
  !
  VLAN 3998
  name "iscsi".
  !
  VLAN 3999
  name "vmotion".
  !
  VLAN 4000
  name "mgmt".
  !
  !
  !
  spanning tree mst configuration
  lethosting-name "region1".
  revision 2
  output
  !
  spanning tree mst mode
  !
  spanning tree mst configuration
  example of 1 vlan 16-50
  instance 2 vlan 3997,4000
  example 3 vlan 3998-3999
  output

  The configuration is for Teddy. I donno what I'm missing here? Any ideas would be very appreciated.

  Yes. Finally managed to do work. Tagged traffic now connects blades with ESXI 5.5 U2 to the Synology rackstation.

  It was the same thing we had. ESXi 6.0 is not supported by this adapter emulex. Also ESXi 5.5 does not I think with the iSCSI driver. So I have updated drivers using esxcli.

  VMware

  Updated network driver

  / tmp # software esxcli vib install v - /tmp/elxnet-10.0.575.9-1OEM.550.0.0.1331820.x86_64.vib
  Result of the installation
  Message: The update completed successfully, but the system must be restarted for the changes to be effective.
  Restart required: true
  VIBs installed: Emulex_bootbank_elxnet_10.0.575.9 - 1OEM.550.0.0.1331820
  VIBs removed: VMware_bootbank_elxnet_10.0.100.0v - 1vmw.550.0.0.1331820
  VIBs ignored:

  ISCSI driver update

  / tmp # software esxcli vib install v - /tmp/scsi-be2iscsi-4.6.261.0-1OEM.550.0.0.1198611.x86_64.vib
  Result of the installation
  Message: The update completed successfully, but the system must be restarted for the changes to be effective.
  Restart required: true
  VIBs installed: Emulex_bootbank_scsi - be2iscsi_4.6.261.0 - 1OEM.550.0.0.1198611
  VIBs deleted:
  VIBs ignored:
  / tmp # software esxcli vib install v - /tmp/ima-be2iscsi-4.6.261.0-1OEM.550.0.0.1198611.i386.vib
  Result of the installation
  Message: The update completed successfully, but the system must be restarted for the changes to be effective.
  Restart required: true
  VIBs installed: Emulex_bootbank_ima - be2iscsi_4.6.261.0 - 1OEM.550.0.0.1198611
  VIBs deleted:
  VIBs ignored:

  esxcli system set to true EI maintenanceMode
  esxcli system shutdown reboot - r = driverupdate d = 10

  After that, I created iSCSI vmkernel ports with the grouping. Ping has started working and now I can connect to the storage

• Flow of virtual switch

  I have a simple confirmation request.

  I have a standard virtual switch created from 4 physical nic, each with 10 GB uplink.

  This virtual switch throughput will be still only 10 GB or 40 GB?

  If it is 40 GB so how traffic is load-balanced through each physical network adapter, it is divided evenly?

  Is there a way I can find what virtual machines on this virutal turnout traffice going through physical nic at a time given time?

  The virtual network adapter (which in this case is probably a vmxnet3 adapter) is connected internally to the virtual switch, not to the link bottom-up itself. In fact, it is the same as in a physical world. Think of an Internet router. If this router has internal port 100MBit/s, that's what you'll see on your PC, but you will be very probably do not have a 100 Mbps Internet connection!

  André