I - Mission Critical Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-NET-000205-RTR-000004
Group -
The Cisco perimeter switch must be configured to filter ingress traffic at the external 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-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-000205-RTR-000015
Group -
The Cisco perimeter switch must be configured to block all packets with any IP options.
Packets with IP options are not fast switched and henceforth must be punted to the switch processor. Hackers who initiate denial-of-service (DoS) attacks on switches commonly send large streams of ...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
Node 2
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