winpcap and ESX Vmware issues

Posted on 2014-02-05
Last Modified: 2014-03-10

We are experiencing an issue that when we use an application running winpcap the network card loses connection. As soon as we stop the application the network returns on a
ESX host with VMware. (windows server 2008)

Anyone experience this?
Question by:neoptoent
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LVL 120
ID: 39836013
Are you using the VMXNET3 network interface, if not try replacing with the VMXNET3 interface card. (make sure you have VMware Tools installed to supported this network interface).

Have you also enabled the vSwitch for Promiscuous  Mode?

Author Comment

ID: 39836067
We are using VMXnet3 interface.
vswitch? is that for a particular host? how do you do that?
LVL 120

Accepted Solution

Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39836195
see how to configure a vSwitch here at VMware Knowledge Base 1004099

Configuring promiscuous mode on a virtual switch or portgroup
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Author Comment

ID: 39836218
I have another host on the same cluster that works though
LVL 120
ID: 39836224
That's makes it different then.

Same Make and Model of Host?

Same Build of ESXi server?

Author Comment

ID: 39836262
LVL 120
ID: 39837466
What physical switch configuration are you using?

can you upload screenshots of your networking?

does it only happen in this VM?

Author Comment

ID: 39917717
realized the switch was preventing promiscuous mode

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