Skip to content

Cisco IOS XE Switch L2S Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The Cisco switch must have BPDU Guard enabled on all user-facing or untrusted access switch ports.

    <VulnDiscussion>If a rogue switch is introduced into the topology and transmits a Bridge Protocol Data Unit (BPDU) with a lower bridge priori...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000023

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have STP Loop Guard enabled.

    &lt;VulnDiscussion&gt;The Spanning Tree Protocol (STP) loop guard feature provides additional protection against STP loops. An STP loop is created ...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000024

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have Unknown Unicast Flood Blocking (UUFB) enabled.

    &lt;VulnDiscussion&gt;Access layer switches use the Content Addressable Memory (CAM) table to direct traffic to specific ports based on the VLAN nu...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000025

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have DHCP snooping for all user VLANs to validate DHCP messages from untrusted sources.

    &lt;VulnDiscussion&gt;In an enterprise network, devices under administrative control are trusted sources. These devices include the switches, route...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000026

    <GroupDescription></GroupDescription>
    Group
  • The Cisco switch must have IP Source Guard enabled on all user-facing or untrusted access switch ports.

    &lt;VulnDiscussion&gt;IP Source Guard provides source IP address filtering on a Layer 2 port to prevent a malicious host from impersonating a legit...
    Rule Medium Severity
  • SRG-NET-000362-L2S-000027

    <GroupDescription></GroupDescription>
    Group

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