Detections
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1.48 CISC-RT-000670

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This audit has been deprecated and will be removed in a future update.

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Information

The Cisco PE switch providing MPLS Virtual Private Wire Service (VPWS) must be configured to have the appropriate virtual circuit identification (VC ID) for each attachment circuit.

GROUP ID: V-221121
RULE ID: SV-221121r999774

VPWS is an L2VPN technology that provides a virtual circuit between two PE switches to forward Layer 2 frames between two customer-edge switches or switches through an MPLS-enabled IP core. The ingress PE switch (virtual circuit head-end) encapsulates Ethernet frames inside MPLS packets using label stacking and forwards them across the MPLS network to the egress PE switch (virtual circuit tail-end). During a virtual circuit setup, the PE switches exchange VC label bindings for the specified VC ID. The VC ID specifies a pseudowire associated with an ingress and egress PE switch and the customer-facing attachment circuits.

To guarantee that all frames are forwarded onto the correct pseudowire and to the correct customer and attachment circuits, it is imperative that the correct VC ID is configured for each attachment circuit.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Assign globally unique VC IDs for each virtual circuit and configure the attachment circuits with the appropriate VC ID.

See Also

https://workbench.cisecurity.org/benchmarks/22581

Item Details

References: CAT|I, CCI|CCI-004931, CSCv7|13.3, Rule-ID|SV-221121r999774_rule, STIG-ID|CISC-RT-000670, Vuln-ID|V-221121

Plugin: Cisco

Control ID: e989d63ccea896508320f7720f4983f33595a0cc3185945c6807c8b0525b98cb