STIGQter STIGQter: STIG Summary:

Cisco IOS XE Router RTR Security Technical Implementation Guide

Version: 3

Release: 5 Benchmark Date: 01 Oct 2025

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SV-216641r1117236_ruleThe Cisco router must be configured to enforce approved authorizations for controlling the flow of information within the network based on organization-defined information flow control policies.
SV-216645r1007829_ruleThe Cisco router must be configured to enable routing protocol authentication using FIPS 198-1 algorithms with keys not exceeding 180 days of lifetime.
SV-216646r1117237_ruleThe Cisco router must be configured to have all inactive interfaces disabled.
SV-216649r855812_ruleThe Cisco router must not be configured to have any zero-touch deployment feature enabled when connected to an operational network.
SV-216650r1107209_ruleThe Cisco router must be configured to protect against or limit the effects of denial-of-service (DoS) attacks by employing control plane protection.
SV-216653r855814_ruleThe Cisco router must be configured to have Gratuitous ARP disabled on all external interfaces.
SV-216654r855815_ruleThe Cisco router must be configured to have IP directed broadcast disabled on all interfaces.
SV-216655r855816_ruleThe Cisco router must be configured to have Internet Control Message Protocol (ICMP) unreachable messages disabled on all external interfaces.
SV-216656r855817_ruleThe Cisco router must be configured to have Internet Control Message Protocol (ICMP) mask reply messages disabled on all external interfaces.
SV-216657r855818_ruleThe Cisco router must be configured to have Internet Control Message Protocol (ICMP) redirect messages disabled on all external interfaces.
SV-216658r531086_ruleThe Cisco router must be configured to log all packets that have been dropped at interfaces via ACL.
SV-216659r531086_ruleThe Cisco router must be configured to produce audit records containing information to establish where the events occurred.
SV-216660r531086_ruleThe Cisco router must be configured to produce audit records containing information to establish the source of the events.
SV-216661r1117237_ruleThe Cisco router must be configured to disable the auxiliary port unless it is connected to a secured modem providing encryption and authentication.
SV-216662r1117241_ruleThe Cisco perimeter router must be configured to deny network traffic by default and allow network traffic by exception.
SV-216663r1117237_ruleThe Cisco perimeter router must be configured to enforce approved authorizations for controlling the flow of information between interconnected networks in accordance with applicable policy.
SV-216664r855819_ruleThe Cisco perimeter router must be configured to only allow incoming communications from authorized sources to be routed to authorized destinations.
SV-216665r863260_ruleThe Cisco perimeter router must be configured to block inbound packets with source Bogon IP address prefixes.
SV-216666r1117237_ruleThe Cisco perimeter router must be configured to protect an enclave connected to an alternate gateway by using an inbound filter that only permits packets with destination addresses within the sites address space.
SV-216667r1117237_ruleThe Cisco perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
SV-216668r1117237_ruleThe Cisco perimeter router must be configured to not redistribute static routes to an alternate gateway service provider into BGP or an Interior Gateway Protocol (IGP) peering with the NIPRNet or to other autonomous systems.
SV-216670r1007827_ruleThe Cisco perimeter router must be configured to filter traffic destined to the enclave in accordance with the guidelines contained in DoD Instruction 8551.1.
SV-216671r531086_ruleThe Cisco perimeter router must be configured to filter ingress traffic at the external interface on an inbound direction.
SV-216672r531086_ruleThe Cisco perimeter router must be configured to filter egress traffic at the internal interface on an inbound direction.
SV-216674r855821_ruleThe Cisco perimeter router must be configured to have Link Layer Discovery Protocol (LLDP) disabled on all external interfaces.
SV-216675r855822_ruleThe Cisco perimeter router must be configured to have Cisco Discovery Protocol (CDP) disabled on all external interfaces.
SV-216676r855823_ruleThe Cisco perimeter router must be configured to have Proxy ARP disabled on all external interfaces.
SV-216677r945857_ruleThe Cisco perimeter router must be configured to block all outbound management traffic.
SV-216678r991892_ruleThe Cisco out-of-band management (OOBM) gateway router must be configured to transport management traffic to the Network Operations Center (NOC) via dedicated circuit, MPLS/VPN service, or IPsec tunnel.
SV-216679r531086_ruleThe Cisco out-of-band management (OOBM) gateway router must be configured to forward only authorized management traffic to the Network Operations Center (NOC).
SV-216680r1117237_ruleThe Cisco out-of-band management (OOBM) gateway router must be configured to have separate Interior Gateway Protocol (IGP) instances for the managed network and management network.
SV-216681r1117237_ruleThe Cisco out-of-band management (OOBM) gateway router must be configured to not redistribute routes between the management network routing domain and the managed network routing domain.
SV-216682r531086_ruleThe Cisco out-of-band management (OOBM) gateway router must be configured to block any traffic destined to itself that is not sourced from the OOBM network or the Network Operations Center (NOC).
SV-216683r531086_ruleThe Cisco router must be configured to only permit management traffic that ingresses and egresses the out-of-band management (OOBM) interface.
SV-216684r531086_ruleThe Cisco router providing connectivity to the Network Operations Center (NOC) must be configured to forward all in-band management traffic via an IPsec tunnel.
SV-216687r1117236_ruleThe Cisco BGP router must be configured to reject inbound route advertisements for any Bogon prefixes.
SV-216688r1117236_ruleThe Cisco BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).
SV-216689r1117236_ruleThe Cisco BGP router must be configured to reject inbound route advertisements from a customer edge (CE) router for prefixes that are not allocated to that customer.
SV-216690r1117236_ruleThe Cisco BGP router must be configured to reject outbound route advertisements for any prefixes that do not belong to any customers or the local autonomous system (AS).
SV-216691r929058_ruleThe Cisco BGP router must be configured to reject outbound route advertisements for any prefixes belonging to the IP core.
SV-216692r1117236_ruleThe Cisco BGP router must be configured to reject route advertisements from BGP peers that do not list their autonomous system (AS) number as the first AS in the AS_PATH attribute.
SV-216693r1117236_ruleThe Cisco BGP router must be configured to reject route advertisements from CE routers with an originating AS in the AS_PATH attribute that does not belong to that customer.
SV-216694r855824_ruleThe Cisco BGP router must be configured to use the maximum prefixes feature to protect against route table flooding and prefix de-aggregation attacks.
SV-216695r855825_ruleThe Cisco BGP router must be configured to limit the prefix size on any inbound route advertisement to /24, or the least significant prefixes issued to the customer.
SV-216696r991893_ruleThe Cisco BGP router must be configured to use its loopback address as the source address for iBGP peering sessions.
SV-216697r991894_ruleThe Cisco MPLS router must be configured to use its loopback address as the source address for LDP peering sessions.
SV-216698r531086_ruleThe Cisco MPLS router must be configured to synchronize Interior Gateway Protocol (IGP) and LDP to minimize packet loss when an IGP adjacency is established prior to LDP peers completing label exchange.
SV-216699r531086_ruleThe MPLS router with RSVP-TE enabled must be configured with message pacing to adjust maximum burst and maximum number of RSVP messages to an output queue based on the link speed and input queue size of adjacent core routers.
SV-216700r531086_ruleThe Cisco MPLS router must be configured to have TTL Propagation disabled.
SV-216701r991895_ruleThe Cisco PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance bound to the appropriate physical or logical interfaces to maintain traffic separation between all MPLS L3VPNs.
SV-216702r991897_ruleThe Cisco PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance with the appropriate Route Target (RT).
SV-216703r991899_ruleThe Cisco PE router must be configured to have each VRF with the appropriate Route Distinguisher (RD).
SV-216704r864163_ruleThe Cisco PE router 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.
SV-216705r991900_ruleThe Cisco PE router providing MPLS Virtual Private Wire Service (VPWS) must be configured to have the appropriate virtual circuit identification (VC ID) for each attachment circuit.
SV-216706r531086_ruleThe Cisco PE router providing Virtual Private LAN Services (VPLS) must be configured to have all attachment circuits defined to the virtual forwarding instance (VFI) with the globally unique VPN ID assigned for each customer VLAN.
SV-216707r531086_ruleThe Cisco PE router must be configured to enforce the split-horizon rule for all pseudowires within a Virtual Private LAN Services (VPLS) bridge domain.
SV-216708r531086_ruleThe Cisco PE router providing Virtual Private LAN Services (VPLS) must be configured to have traffic storm control thresholds on CE-facing interfaces.
SV-216709r855827_ruleThe Cisco PE router must be configured to implement Internet Group Management Protocol (IGMP) or Multicast Listener Discovery (MLD) snooping for each Virtual Private LAN Services (VPLS) bridge domain.
SV-216710r531086_ruleThe Cisco PE router must be configured to limit the number of MAC addresses it can learn for each Virtual Private LAN Services (VPLS) bridge domain.
SV-216711r531086_ruleThe Cisco PE router must be configured to block any traffic that is destined to IP core infrastructure.
SV-216712r531086_ruleThe Cisco PE router must be configured with Unicast Reverse Path Forwarding (uRPF) loose mode enabled on all CE-facing interfaces.
SV-216714r917433_ruleThe Cisco PE router must be configured to enforce a Quality-of-Service (QoS) policy to provide preferred treatment for mission-critical applications.
SV-216715r917436_ruleThe Cisco P router must be configured to enforce a Quality-of-Service (QoS) policy to provide preferred treatment for mission-critical applications.
SV-216716r531086_ruleThe Cisco PE router must be configured to enforce a Quality-of-Service (QoS) policy to limit the effects of packet flooding denial of service (DoS) attacks.
SV-216717r1117237_ruleThe Cisco multicast router must be configured to disable Protocol Independent Multicast (PIM) on all interfaces that are not required to support multicast routing.
SV-216718r1117237_ruleThe Cisco multicast router must be configured to bind a Protocol Independent Multicast (PIM) neighbor filter to interfaces that have PIM enabled.
SV-216719r1117237_ruleThe Cisco multicast edge router must be configured to establish boundaries for administratively scoped multicast traffic.
SV-216720r864164_ruleThe Cisco multicast Rendezvous Point (RP) router must be configured to limit the multicast forwarding cache so that its resources are not saturated by managing an overwhelming number of Protocol Independent Multicast (PIM) and Multicast Source Discovery Protocol (MSDP) source-active entries.
SV-216721r1117237_ruleThe Cisco multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Register messages received from the Designated Router (DR) for any undesirable multicast groups and sources.
SV-216722r1117237_ruleThe Cisco multicast Rendezvous Point (RP) router must be configured to filter Protocol Independent Multicast (PIM) Join messages received from the Designated Router (DR) for any undesirable multicast groups.
SV-216723r855829_ruleThe Cisco multicast Rendezvous Point (RP) must be configured to rate limit the number of Protocol Independent Multicast (PIM) Register messages.
SV-216724r864165_ruleThe Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join only multicast groups that have been approved by the organization.
SV-216725r864166_ruleThe Cisco multicast Designated Router (DR) must be configured to filter the Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Report messages to allow hosts to join a multicast group only from sources that have been approved by the organization.
SV-216726r855832_ruleThe Cisco multicast Designated Router (DR) must be configured to limit the number of mroute states resulting from Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Host Membership Reports.
SV-216727r945856_ruleThe Cisco multicast Designated Router (DR) must be configured to set the shortest-path tree (SPT) threshold to infinity to minimalize source-group (S, G) state within the multicast topology where Any Source Multicast (ASM) is deployed.
SV-216728r855834_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to only accept MSDP packets from known MSDP peers.
SV-216729r855835_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to authenticate all received MSDP packets.
SV-216730r1117236_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to filter received source-active multicast advertisements for any undesirable multicast groups and sources.
SV-216731r1117236_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to filter source-active multicast advertisements to external MSDP peers to avoid global visibility of local-only multicast sources and groups.
SV-216732r1117236_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to limit the amount of source-active messages it accepts on a per-peer basis.
SV-216733r991901_ruleThe Cisco Multicast Source Discovery Protocol (MSDP) router must be configured to use a loopback address as the source address when originating MSDP traffic.
SV-216997r945858_ruleThe Cisco perimeter router must be configured to restrict it from accepting outbound IP packets that contain an illegitimate address in the source address field via egress filter or by enabling Unicast Reverse Path Forwarding (uRPF).
SV-216998r945859_ruleThe Cisco perimeter router must be configured to block all packets with any IP options.
SV-216999r855842_ruleThe Cisco BGP router must be configured to enable the Generalized TTL Security Mechanism (GTSM).
SV-217000r945862_ruleThe Cisco BGP router must be configured to use a unique key for each autonomous system (AS) that it peers with.
SV-217001r945860_ruleThe Cisco PE router must be configured to ignore or drop all packets with any IP options.
SV-229031r878127_ruleThe Cisco router must be configured to have Cisco Express Forwarding enabled.
SV-230039r647454_ruleThe Cisco router must be configured to advertise a hop limit of at least 32 in Router Advertisement messages for IPv6 stateless auto-configuration deployments.
SV-230042r647455_ruleThe Cisco router must not be configured to use IPv6 Site Local Unicast addresses.
SV-230045r647430_ruleThe Cisco perimeter router must be configured to suppress Router Advertisements on all external IPv6-enabled interfaces.
SV-230048r950991_ruleThe Cisco perimeter router must be configured to drop IPv6 undetermined transport packets.
SV-230051r855846_ruleThe Cisco perimeter router must be configured drop IPv6 packets with a Routing Header type 0, 1, or 3–255.
SV-230146r1132551_ruleThe Cisco perimeter router must be configured to drop IPv6 packets containing a Hop-by-Hop header with invalid option type values.
SV-230150r1132503_ruleThe Cisco perimeter router must be configured to drop IPv6 packets containing a Destination Option header with invalid option type values.
SV-230153r1132506_ruleThe Cisco perimeter router must be configured to drop IPv6 packets containing an extension header with the Endpoint Identification option.
SV-230156r1132509_ruleThe Cisco perimeter router must be configured to drop IPv6 packets containing the NSAP address option within Destination Option header.
SV-230159r1132512_ruleThe Cisco perimeter router must be configured to drop IPv6 packets containing a Hop-by-Hop or Destination Option extension header with an undefined option type.