The NSX-T Tier-0 Gateway must be configured to have all inactive interfaces removed.
An XCCDF Rule
Description
<VulnDiscussion>An inactive interface is rarely monitored or controlled and may expose a network to an undetected attack on that interface. If an interface is no longer used, the configuration must be deleted.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-251746r810122_rule
- Severity
- Low
- References
- Updated
Remediation - Manual Procedure
Disable multicast PIM routing on interfaces that are not required to support multicast by doing the following:
From the NSX-T Manager web interface, go to Networking >> Tier-0 Gateways and expand the target Tier-0 gateway.
Expand "Interfaces", then click on the number of interfaces present to open the interfaces dialog. Select "Delete" on the unneeded interface, and then click "Delete" again to confirm.