Cisco IOS XE Switch L2S Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000512-L2S-000001
<GroupDescription></GroupDescription>Group -
The Cisco switch must have Storm Control configured on all host-facing switchports.
<VulnDiscussion>A traffic storm occurs when packets flood a LAN, creating excessive traffic and degrading network performance. Traffic storm ...Rule Low Severity -
SRG-NET-000512-L2S-000002
<GroupDescription></GroupDescription>Group -
The Cisco switch must have IGMP or MLD Snooping configured on all VLANs.
<VulnDiscussion>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 -
SRG-NET-000512-L2S-000003
<GroupDescription></GroupDescription>Group -
The Cisco switch must implement Rapid STP where VLANs span multiple switches with redundant links.
<VulnDiscussion>Spanning Tree Protocol (STP) is implemented on bridges and switches to prevent layer 2 loops when a broadcast domain spans mu...Rule Medium Severity -
SRG-NET-000512-L2S-000004
<GroupDescription></GroupDescription>Group -
The Cisco switch must enable Unidirectional Link Detection (UDLD) to protect against one-way connections.
<VulnDiscussion>In topologies where fiber optic interconnections are used, physical misconnections can occur that allow a link to appear to b...Rule Medium Severity -
SRG-NET-000512-L2S-000005
<GroupDescription></GroupDescription>Group -
The Cisco switch must have all trunk links enabled statically.
<VulnDiscussion>When trunk negotiation is enabled via Dynamic Trunk Protocol (DTP), considerable time can be spent negotiating trunk settings...Rule Medium Severity
Node 2
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