STIGQter STIGQter: STIG Summary: VMware vSphere 7.0 ESXi Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 02 Apr 2025:

All port groups on standard switches must not be configured to virtual local area network (VLAN) values reserved by upstream physical switches.

DISA Rule

SV-256426r959010_rule

Vulnerability Number

V-256426

Group Title

SRG-OS-000480-VMM-002000

Rule Version

ESXI-70-000065

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual switches.

For each port group on a standard switch that is configured to a reserved VLAN, click the "..." button next to the port group.

Click "Edit Settings". On the "Properties" tab, change the "VLAN ID" to an appropriate VLAN ID and click "OK".

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup -Name "portgroup name" | Set-VirtualPortGroup -VLanId "New VLAN#"

Check Contents

Note: This control addresses ESXi standard switches. Distributed switches are addressed in the vCenter STIG. If there is no standard switch on the ESXi host, this is not applicable.

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual switches.

For each standard switch, review the "VLAN ID" on each port group and verify it is not set to a reserved VLAN ID.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup -Standard | Select Name, VLanId

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

Vulnerability Number

V-256426

Documentable

False

Rule Version

ESXI-70-000065

Severity Override Guidance

Note: This control addresses ESXi standard switches. Distributed switches are addressed in the vCenter STIG. If there is no standard switch on the ESXi host, this is not applicable.

From the vSphere Client, go to Hosts and Clusters.

Select the ESXi Host >> Configure >> Networking >> Virtual switches.

For each standard switch, review the "VLAN ID" on each port group and verify it is not set to a reserved VLAN ID.

or

From a PowerCLI command prompt while connected to the ESXi host, run the following command:

Get-VirtualPortGroup -Standard | Select Name, VLanId

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

Check Content Reference

M

Target Key

5518