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Arista MLS EOS 4.2x L2S Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-NET-000362-L2S-000026

    <GroupDescription></GroupDescription>
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  • The Arista MLS layer 2 switch must have IP Source Guard enabled on all user-facing or untrusted access switch ports.

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

    <GroupDescription></GroupDescription>
    Group
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  • The Arista MLS layer 2 switch must have Dynamic Address Resolution Protocol (ARP) Inspection (DAI) enabled on all user VLANs.

    &lt;VulnDiscussion&gt;DAI intercepts Address Resolution Protocol (ARP) requests and verifies that each of these packets has a valid IP-to-MAC addre...
    Rule Medium Severity
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  • SRG-NET-000512-L2S-000002

    <GroupDescription></GroupDescription>
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  • The Arista MLS layer 2 switch must have IGMP or MLD Snooping configured on all VLANs.

    &lt;VulnDiscussion&gt;IGMP and MLD snooping provides a way to constrain multicast traffic at Layer 2. By monitoring the IGMP or MLD membership repo...
    Rule Low Severity
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  • SRG-NET-000512-L2S-000003

    <GroupDescription></GroupDescription>
    Group
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  • The Arista MLS layer 2 Arista MLS switch must implement Rapid STP where VLANs span multiple switches with redundant links.

    &lt;VulnDiscussion&gt;Spanning Tree Protocol (STP) is implemented on bridges and switches to prevent layer 2 loops when a broadcast domain spans mu...
    Rule Medium Severity
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  • SRG-NET-000512-L2S-000004

    <GroupDescription></GroupDescription>
    Group
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  • The Arista MLS layer 2 switch must enable Unidirectional Link Detection (UDLD) to protect against one-way connections.

    &lt;VulnDiscussion&gt;In topologies where fiber optic interconnections are used, physical misconnections can occur that allow a link to appear to b...
    Rule Medium Severity
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