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NLB does not respond on same subnet
I'm having an issue with a Microsoft NLB server cluster, it DOES respond to ICMP from clients on different subnets but it DOES NOT respond to ICMP on the same subnet (broadcast domain).
Both se...
- Found a resolution to this, some how the virtual interface used by the NLB had an advanced feature disabled.
The resolution was to enable the Enable MAC address spoofing setting for all members of the NLB cluster.
NOTE: I cannot add these manually to our server estate, that isn't a viable option, I need to identify why the NLB process isn't responding to ARP queries.