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Layer 2 Switch Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000235

    Group
  • The layer 2 switch must be configured to fail securely in the event of an operational failure.

    If the switch fails in an unsecure manner (open), unauthorized traffic originating externally to the enclave may enter or the device may permit unauthorized information release. Fail secure is a co...
    Rule Medium Severity
  • SRG-NET-000331

    Group
  • The layer 2 switch must provide the capability for authorized users to select a user session to capture.

    Without the capability to select a user session to capture/record or view/hear, investigations into suspicious or harmful events would be hampered by the volume of information captured. The volume ...
    Rule Medium Severity
  • SRG-NET-000332

    Group
  • SRG-NET-000343

    Group
  • SRG-NET-000362

    Group
  • The layer 2 switch must have Root Guard enabled on all switch ports connecting to access layer switches and hosts.

    Spanning Tree Protocol (STP) does not provide any means for the network administrator to securely enforce the topology of the switched network. Any switch can be the root bridge in a network. Howev...
    Rule Low Severity
  • SRG-NET-000362

    Group
  • SRG-NET-000362

    Group
  • SRG-NET-000362

    Group
  • SRG-NET-000362

    Group
  • The layer 2 switch must have DHCP snooping for all user VLANs to validate DHCP messages from untrusted sources.

    In an enterprise network, devices under administrative control are trusted sources. These devices include the switches, routers, and servers in the network. Host ports and unknown DHCP servers are ...
    Rule Medium Severity
  • SRG-NET-000362

    Group
  • The layer 2 switch must have IP Source Guard enabled on all user-facing or untrusted access switch ports.

    IP Source Guard provides source IP address filtering on a Layer 2 port to prevent a malicious host from impersonating a legitimate host by assuming the legitimate host's IP address. The feature use...
    Rule Medium Severity
  • SRG-NET-000362

    Group
  • SRG-NET-000512

    Group
  • The layer 2 switch must have Storm Control configured on all host-facing switch ports.

    A traffic storm occurs when packets flood a LAN, creating excessive traffic and degrading network performance. Traffic storm control prevents network disruption by suppressing ingress traffic when ...
    Rule Low Severity
  • SRG-NET-000512

    Group
  • SRG-NET-000512

    Group

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