VMware vSphere

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  • 1.  Is it possible to configure NAT on vmware ESXi?

    Posted Dec 06, 2011 07:12 AM

         Hello everyone,

    I'm new to Esxi5 technology, i read a lot about the networking basics but still can't figure out how to configure NAT.

    The scenario that i'm trying to test is basically 2 machines connected to virtual network A

    and 3rd machine that connected to virtual network B which is connected to the physical NIC  .

    my host has only one Physical NIC with Internet access.

    please can anyone guide me, i didn't find it "friendly" as in VMware Workstation.

    thanks a lot.

    itai



  • 2.  RE: Is it possible to configure NAT on vmware ESXi?

    Posted Dec 06, 2011 07:26 AM

    Welcome to the VMware Communities forums.

    You'll need at least 2 public IP addresses for this.  ESXi does not include a NAT option.

    For your VMs what you would typically do is configure a firewall VM with one virtual NIC configured with Internet access, and the other virtual NIC connected to your DMZ or LAN network.  The  DMZ or LAN network can be on a virtual switch that is not connected to a physical NIC port.

    For your ESXi host I would suggest putting it behind a firewall / VPN device.  It's not ideal to have the  host directly connected to the Internet.



  • 3.  RE: Is it possible to configure NAT on vmware ESXi?

    Posted Dec 06, 2011 11:27 AM


    thank you for your answer.

    eventually what i did was configuring Vswitch 0 containing VM1 attached to VNIC1 with internet access (through proxy server in my case)

    and another vSwitch1 (internal) with no physical nic attached which contains the internal VM2 and VM3 +  VM1 with the internet connection.

    than on the VM1 installed with microsoft server , i added a second VNIC2 attached to the internal network.

    than "Internet Connection Sharing" on the VNIC1.

    eventually i also had to configure the Proxy settings for internal VM2+VM3 in the browser settings.

    is this an akward configuration?

    thanks a lot !

    itai



  • 4.  RE: Is it possible to configure NAT on vmware ESXi?

    Posted Dec 06, 2011 02:07 PM

    itaios1984 wrote:

    eventually i also had to configure the Proxy settings for internal VM2+VM3 in the browser settings.

    is this an akward configuration?

    thanks a lot !

    Not if it works!