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#Vmware mac address changing ports how to
#Vmware mac address changing ports upgrade

Enter the name of the distributed switch, use something like LB/ADC VM Network.Create a new distributed port group for the Load Balancer network configurations.

#Vmware mac address changing ports how to

Two options are detailed here, one showing you how to create a new distributed port group and the second option shows you how to edit settings on an existing distributed port group.Ĭreating a new distributed port group for KEMP VLM’s: Prerequisites for deploying a Virtual Loadmaster on a Distributed Switchĭistributed Switch Step by step configuration Guide:

Set Notify switches to Yes (1) , then click Save (2).

Select the LB VM Network port group (1) and then click edit settings (2),

The next step is to edit the settings of the newly created port group.

As you can see from the screenshot below, I have used the same VLAN and called it the LB VM Network.

Change the default Name (1) of the port group, and Select Accept Forged Transmits.

The following steps show you how to configure a LB port group on a ESX standard vSwitch. You can find out more about RARP within VMware here: Standard vSwitch Step by step configuration Guide: There could also be complications to High available (HA) KEMP configurations, preventing LoadMasters from communicating correctly and failing over from the Active to Passive node.

One challenge you could face when using load balancers on a RARP enabled port group or vSwitch is, all inbound traffic could be passed to one real server, potentially overloading the real server and reducing the workload to a single point of failure. A physical switch does this by observing each incoming frame and recording the Source MAC address field. The reason for the sending these packets, is to make sure that the physical switches (local network) learn the location of Virtual Machines running on the ESXi Host.

When the Notify Switch value is set to Yes (default), this essentially gives ESXi the permission to send RARP Packets on behalf of Virtual Machines running on the ESXI Host. What are RARP (Reverse Address Resolution Protocol) Packets: Ensure the VLM MAC address is set to static as if the MAC address changes, this can cause licensing issues.This should be configured to prevent RARP Packets being sent every time vMotion or powering on a VM.

The transmission of RARP packets needs to be prevented on the LB port group by setting Notify Switch to No.

This should be hardcoded on the portgroup to prevent any inheritance configurations from the vSwitch.

The security Policy’s required: Forged transmits should be set to Accept on the new port group.

A duplicate port group is required so that the settings can be changed only on the load balancer port group.

#Vmware mac address changing ports upgrade

Do not attempt to upgrade VMware Tools – these have been integrated in the to the Virtual LoadMaster (VLM) Appliance.

This post covers the network prerequisites for configuring a Virtual LoadMaster in a VMware vSphere environment. Network Prerequisites for deploying a Virtual Loadmaster on VMware vSphere 6.7