Get ready to learn how to activate promiscuous mode VMware. Our VMware Support team is here to lend a hand with your queries and issues.

How to activate promiscuous mode VMware

According to our experts, the promiscuous mode in VMware allows a virtual network adapter to receive all network packets that are currently sent on the network, besides the packets that are addressed to it.

Furthermore, the promiscuous mode removes reception filtering that the VM machine adapter carries out. In other words, the guest operating system receives all traffic on the wire. The VM adapter cannot operate in promiscuous mode by default.

Although this mode can help track network activity, it is insecure, because any adapter in promiscuous mode can access packets not meant for it. To put it another way, an administrator or root user within the VM can access traffic meant for other guest or host operating systems.

We can easily enable promiscuous mode in VMware for a virtual network adapter with these steps:

1. First, we have to open VMware vSphere Client and then connect to the host or vCenter Server that manages the virtual machine.
2. Next, we have to click the Hosts and Clusters option in the navigation pane and choose the host on which the VM is running.
3. Then, we have to click the Configurations tab, and then choose Security Profile from the menu.
4. After that, navigate to Properties in the Security Profile section for the virtual switch.
5. Now, click the Edit button and select Accept in the Promiscuous Mode section. Next, we will select Accept and click Ok.
6. Finally, we have to click Ok to save the changes.

Our experts would like to point out that enabling promiscuous mode is a security risk. It should be done for testing and troubleshooting purposes only.

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Conclusion

To sum up, our Support Engineers demonstrated how to activate promiscuous mode VMware.