IEEE 802.1q Unauthorized VLAN Traversal Weakness

IEEE 802.1q Unauthorized VLAN Traversal Weakness

References:

Cisco Product Security Incident Response (Cisco Systems)
Making unidirectional VLAN and PVLAN jumping bidirectional ("Andrew A. Vladimirov" )
Re: Making unidirectional VLAN and PVLAN jumping bidirectional (Clayton Kossmeyer )

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