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XCCDF
Juniper EX Series Switches Layer 2 Switch Security Technical Implementation Guide
SRG-NET-000512-L2S-000012
The Juniper EX switch must not have a native VLAN ID assigned, or have a unique native VLAN ID, for all 802.1q trunk links.
The Juniper EX switch must not have a native VLAN ID assigned, or have a unique native VLAN ID, for all 802.1q trunk links.
An XCCDF Rule
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The Juniper EX switch must not have a native VLAN ID assigned, or have a unique native VLAN ID, for all 802.1q trunk links.
Medium Severity
<VulnDiscussion>By default, Juniper switches do not assign a native VLAN to any trunked interface. Allowing trunked interfaces to accept untagged data packets may unintentionally expose VLANs to unauthorized devices that could result in network exploration, unauthorized resource access, or a DoS condition. If a network function requires a native VLAN it must be unique.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>