III - Administrative Public
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000205-RTR-000005
Group -
The Cisco perimeter switch must be configured to filter egress traffic at the internal interface on an inbound direction.
Access lists are used to separate data traffic into that which it will route (permitted packets) and that which it will not route (denied packets). Secure configuration of switches makes use of acc...Rule Medium Severity -
SRG-NET-000364-RTR-000111
Group -
The Cisco perimeter switch must be configured to have Link Layer Discovery Protocol (LLDP) disabled on all external interfaces.
LLDP is a neighbor discovery protocol used to advertise device capabilities, configuration information, and device identity. LLDP is media-and-protocol-independent as it runs over Layer 2; therefor...Rule Low Severity -
SRG-NET-000364-RTR-000111
Group -
The Cisco perimeter switch must be configured to have Cisco Discovery Protocol (CDP) disabled on all external interfaces.
CDP is a Cisco proprietary neighbor discovery protocol used to advertise device capabilities, configuration information, and device identity. CDP is media-and-protocol-independent as it runs over L...Rule Low Severity -
SRG-NET-000364-RTR-000112
Group -
The Cisco perimeter switch must be configured to have Proxy ARP disabled on all external interfaces.
When Proxy ARP is enabled on a switch, it allows that switch to extend the network (at Layer 2) across multiple interfaces (LAN segments). Because proxy ARP allows hosts from different LAN segments...Rule Medium Severity -
SRG-NET-000364-RTR-000113
Group -
The Cisco perimeter switch must be configured to block all outbound management traffic.
For in-band management, the management network must have its own subnet in order to enforce control and access boundaries provided by Layer 3 network nodes, such as switches and firewalls. Manageme...Rule Medium Severity -
SRG-NET-000205-RTR-000012
Group -
The Cisco switch must be configured to only permit management traffic that ingresses and egresses the out-of-band management (OOBM) interface.
The OOBM access switch will connect to the management interface of the managed network elements. The management interface can be a true OOBM interface or a standard interface functioning as the man...Rule Medium Severity -
SRG-NET-000343-RTR-000001
Group -
The Cisco PE switch providing MPLS Layer 2 Virtual Private Network (L2VPN) services must be configured to authenticate targeted Label Distribution Protocol (LDP) sessions used to exchange virtual circuit (VC) information using a FIPS-approved message authentication code algorithm.
LDP provides the signaling required for setting up and tearing down pseudowires (virtual circuits used to transport Layer 2 frames) across an MPLS IP core network. Using a targeted LDP session, eac...Rule Medium Severity -
SRG-NET-000205-RTR-000007
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The Cisco PE switch must be configured to block any traffic that is destined to the IP core infrastructure.
IP addresses can be guessed. Core network elements must not be accessible from any external host. Protecting the core from any attack is vital for the integrity and privacy of customer traffic as w...Rule High Severity -
SRG-NET-000205-RTR-000008
Group -
The Cisco PE switch must be configured with Unicast Reverse Path Forwarding (uRPF) loose mode enabled on all CE-facing interfaces.
The uRPF feature is a defense against spoofing and denial-of-service (DoS) attacks by verifying if the source address of any ingress packet is reachable. To mitigate attacks that rely on forged sou...Rule Medium Severity -
SRG-NET-000193-RTR-000113
Group -
The Cisco PE switch must be configured to enforce a Quality-of-Service (QoS) policy to provide preferred treatment for mission-critical applications.
Different applications have unique requirements and toleration levels for delay, jitter, bandwidth, packet loss, and availability. To manage the multitude of applications and services, a network re...Rule Low Severity
Node 2
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