I - Mission Critical Classified
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000512-RTR-000008
<GroupDescription></GroupDescription>Group -
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.
<VulnDiscussion>VPWS is an L2VPN technology that provides a virtual circuit between two PE switches to forward Layer 2 frames between two cus...Rule High Severity -
SRG-NET-000512-RTR-000009
<GroupDescription></GroupDescription>Group -
The Cisco PE switch providing Virtual Private LAN Services (VPLS) must be configured to have all attachment circuits defined to the virtual forwarding instance (VFI) with the globally unique VPN ID assigned for each customer VLAN.
<VulnDiscussion>VPLS defines an architecture that delivers Ethernet multipoint services over an MPLS network. Customer Layer 2 frames are for...Rule High Severity -
SRG-NET-000193-RTR-000002
<GroupDescription></GroupDescription>Group -
The Cisco PE switch providing Virtual Private LAN Services (VPLS) must be configured to have traffic storm control thresholds on CE-facing interfaces.
<VulnDiscussion>A traffic storm occurs when packets flood a VPLS bridge, creating excessive traffic and degrading network performance. Traffi...Rule Medium Severity -
SRG-NET-000362-RTR-000119
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured to implement Internet Group Management Protocol (IGMP) or Multicast Listener Discovery (MLD) snooping for each Virtual Private LAN Services (VPLS) bridge domain.
<VulnDiscussion>IGMP snooping provides a way to constrain multicast traffic at Layer 2. By monitoring the IGMP membership reports sent by hos...Rule Low Severity -
SRG-NET-000192-RTR-000002
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured to limit the number of MAC addresses it can learn for each Virtual Private LAN Services (VPLS) bridge domain.
<VulnDiscussion>VPLS defines an architecture that delivers Ethernet multipoint services over an MPLS network. Customer Layer 2 frames are for...Rule Medium Severity -
SRG-NET-000205-RTR-000007
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured to block any traffic that is destined to the IP core infrastructure.
<VulnDiscussion>IP/MPLS networks providing VPN and transit services must provide, at the least, the same level of protection against denial-o...Rule High Severity -
SRG-NET-000205-RTR-000008
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured with Unicast Reverse Path Forwarding (uRPF) loose mode enabled on all CE-facing interfaces.
<VulnDiscussion>The uRPF feature is a defense against spoofing and denial-of-service (DoS) attacks by verifying if the source address of any ...Rule Medium Severity -
SRG-NET-000205-RTR-000016
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured to ignore or drop all packets with any IP options.
<VulnDiscussion>Packets with IP options are not fast-switched and therefore must be punted to the switch processor. Hackers who initiate deni...Rule Medium Severity -
SRG-NET-000193-RTR-000113
<GroupDescription></GroupDescription>Group -
The Cisco PE switch must be configured to enforce a Quality-of-Service (QoS) policy to provide preferred treatment for mission-critical applications.
<VulnDiscussion>Different applications have unique requirements and toleration levels for delay, jitter, bandwidth, packet loss, and availabi...Rule Low Severity -
SRG-NET-000193-RTR-000114
<GroupDescription></GroupDescription>Group -
The Cisco P switch must be configured to enforce a Quality-of-Service (QoS) policy to provide preferred treatment for mission-critical applications.
<VulnDiscussion>Different applications have unique requirements and toleration levels for delay, jitter, bandwidth, packet loss, and availabi...Rule Low Severity
Node 2
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