Skip to content

Cisco IOS XE Switch L2S Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000362-L2S-000024

    Group
  • SRG-NET-000362-L2S-000025

    Group
  • The Cisco 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-L2S-000026

    Group
  • The Cisco 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-L2S-000027

    Group
  • The Cisco switch must have Dynamic Address Resolution Protocol (ARP) Inspection (DAI) enabled on all user VLANs.

    DAI intercepts Address Resolution Protocol (ARP) requests and verifies that each of these packets has a valid IP-to-MAC address binding before updating the local ARP cache and before forwarding the...
    Rule Medium Severity
  • SRG-NET-000512-L2S-000001

    Group
  • The Cisco switch must have Storm Control configured on all host-facing switchports.

    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-L2S-000002

    Group
  • SRG-NET-000512-L2S-000003

    Group
  • SRG-NET-000512-L2S-000004

    Group
  • The Cisco switch must enable Unidirectional Link Detection (UDLD) to protect against one-way connections.

    In topologies where fiber optic interconnections are used, physical misconnections can occur that allow a link to appear to be up when there is a mismatched set of transmit/receive pairs. When such...
    Rule Medium Severity
  • SRG-NET-000512-L2S-000005

    Group
  • SRG-NET-000512-L2S-000007

    Group
  • The Cisco switch must have all disabled switch ports assigned to an unused VLAN.

    It is possible that a disabled port that is assigned to a user or management VLAN becomes enabled by accident or by an attacker and as a result gains access to that VLAN as a member.
    Rule Medium Severity
  • SRG-NET-000512-L2S-000008

    Group
  • The Cisco switch must not have the default VLAN assigned to any host-facing switch ports.

    In a VLAN-based network, switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with other networking devices using Spanning-Tree Protocol (STP), Dynamic Trunking Pr...
    Rule Medium Severity
  • SRG-NET-000512-L2S-000010

    Group
  • The Cisco switch must not use the default VLAN for management traffic.

    Switches use the default VLAN (i.e., VLAN 1) for in-band management and to communicate with directly connected switches using Spanning-Tree Protocol (STP), Dynamic Trunking Protocol (DTP), VLAN Tru...
    Rule Medium Severity

The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.

Capacity
Modules