STIGQter STIGQter: STIG Summary: VMware vSphere 8.0 vCenter Security Technical Implementation Guide Version: 2 Release: 4 Benchmark Date: 01 Jul 2026:

The vCenter Server must not configure all port groups to virtual local area network (VLAN) values reserved by upstream physical switches.

DISA Rule

SV-258941r961863_rule

Vulnerability Number

V-258941

Group Title

SRG-APP-000516

Rule Version

VCSA-80-000274

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a distributed port group >> Configure >> Settings >> Policies.

Click "Edit".

Click the "VLAN" tab. Change the VLAN ID to an unreserved VLAN ID.

Click "OK".

or

From a PowerCLI command prompt while connected to the vCenter server, run the following command:

Get-VDPortgroup "portgroup name" | Set-VDVlanConfiguration -VlanId "New VLAN#"

Check Contents

If distributed switches are not used, this is not applicable.

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a distributed port group >> Configure >> Settings >> Policies.

Review the port group VLAN tags and verify that they are not set to a reserved VLAN ID.

or

From a PowerCLI command prompt while connected to the vCenter server, run the following command:

Get-VDPortgroup | select Name, VlanConfiguration

If any port group is configured with a reserved VLAN ID, this is a finding.

Vulnerability Number

V-258941

Documentable

False

Rule Version

VCSA-80-000274

Severity Override Guidance

If distributed switches are not used, this is not applicable.

From the vSphere Client, go to "Networking".

Select a distributed switch >> Select a distributed port group >> Configure >> Settings >> Policies.

Review the port group VLAN tags and verify that they are not set to a reserved VLAN ID.

or

From a PowerCLI command prompt while connected to the vCenter server, run the following command:

Get-VDPortgroup | select Name, VlanConfiguration

If any port group is configured with a reserved VLAN ID, this is a finding.

Check Content Reference

M

Target Key

5573