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I - Mission Critical Public

Rules and Groups employed by this XCCDF Profile

  • SRG-NET-000512-RTR-000010

    <GroupDescription></GroupDescription>
    Group
  • The Cisco PE switch must be configured to enforce the split-horizon rule for all pseudowires within a Virtual Private LAN Services (VPLS) bridge domain.

    &lt;VulnDiscussion&gt;A virtual forwarding instance (VFI) must be created on each participating PE switch for each customer VLAN using VPLS for car...
    Rule Low 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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;IP addresses can be guessed. Core network elements must not be accessible from any external host. Protecting the core from an...
    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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;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.

    &lt;VulnDiscussion&gt;Different applications have unique requirements and toleration levels for delay, jitter, bandwidth, packet loss, and availabi...
    Rule Low Severity
  • SRG-NET-000193-RTR-000112

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must be configured to enforce a Quality-of-Service (QoS) policy to limit the effects of packet flooding denial-of-service (DoS) attacks.

    &lt;VulnDiscussion&gt;DoS is a condition when a resource is not available for legitimate users. Packet flooding distributed denial-of-service (DDoS...
    Rule Medium Severity

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