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ABOUT CHECKMATES CYBER SECURITY COMMUNITY & FAQ
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Timothy_Hall
MVP Gold
MVP Gold
‎2023-02-24 11:27 AM
In response to Ed_Eades

What you have found aligns perfectly with the behavior you are seeing.

I can't see why a Netscaler or any other device would try to use or take over another system's MAC address, unless you got extremely unlucky and the Netscaler and the cluster happened to dynamically derive the exact same VMAC address for their use.  Here is how the Check Point cluster computes the VMAC to use:

First 24 bits

Unique constant value.

00:1C:7F

Next 8 bits

VSX Virtual System ID.

  • In a VSX Cluster:

    Virtual System ID

  • In a non-VSX Cluster

    000000000

Last 16 bits

Unique value that the Management Server

Timothy_Hall_0-1677266831239.gif

 

assigns to each cluster object.

This makes the VMAC value unique for each managed cluster.

Unique value for each cluster
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