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Distributed firewall rules fail to apply on VM's without VMware tools (2149040)

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Symptoms

When VM names are used as security tags in NSX distributed firewall,

  • Firewall rules using IP addresses does not apply on virtual machines.
  • VMware tools are not installed in the affected virtual machines.

Resolution

To resolve this issue, use one of the these options:

  • Install VMware tools on the virtual machine.
  • Change IP Detection Type on cluster level to DHCP snooping, ARP snooping or both.
  • Use IP Addresses instead of VM names.

For more information, see IP Discovery for Virtual Machines and Change IP Detection Type.

Note: If you enable ARP snooping and on some VM's, you have two IP address on same NIC, then spoof guard should be enabled.

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