Skip to content
ATO Pathways
Log In
Overview
Search
Catalogs
SCAP
OSCAL
Catalogs
Profiles
Documents
References
Knowledge Base
Platform Documentation
Compliance Dictionary
Platform Changelog
About
Catalogs
XCCDF
Juniper EX Series Switches Layer 2 Switch Security Technical Implementation Guide
SRG-NET-000512-L2S-000008
The Juniper EX switch must not be configured with VLANs used for L2 control traffic assigned to any host-facing access interface.
The Juniper EX switch must not be configured with VLANs used for L2 control traffic assigned to any host-facing access interface.
An XCCDF Rule
Details
Profiles
Prose
The Juniper EX switch must not be configured with VLANs used for L2 control traffic assigned to any host-facing access interface.
Medium Severity
<VulnDiscussion>In a switched Ethernet network, some protocols use L2 Protocol Data Units (PDU) to communicate in-band management or other control information. This control traffic is inappropriate for host-facing access interfaces because those devices are not part of the switching infrastructure. Juniper switches do not automatically carry this L2 control traffic in the default VLAN or automatically assign the default VLAN to all trunks, reducing the scope of potential misuse. Preventing host-facing access interfaces from participating in the L2 control traffic communications further reduces the risk of inadvertent (or malicious) interference.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>