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The Nokia perimeter router must be configured to drop IPv6 undetermined transport packets.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283871NOKI-RT-000530SV-283871r1203862_ruleCCI-002403medium
Description
One of the fragmentation weaknesses known in IPv6 is the undetermined transport packet. This packet contains an undetermined protocol due to fragmentation. Depending on the length of the IPv6 extension header chain, the initial fragment may not contain the layer 4 port information of the packet.
STIGDate
Nokia Service Router OS 25.x Router Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

NET-03Boundary Protection
0.50
NET-04.1Deny Traffic by Default & Allow Traffic by Exception
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CM-6Configuration Settings
1.00
SC-24Fail in Known State
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(29)Separate Subnets to Isolate Functions
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
CCI1 mapping
CCI-002403
1.00

Details

Check Text (C-283871r1203862_chk)

This requirement is not applicable for the DODIN Backbone. Review the router configuration to determine if it is configured to drop IPv6 undetermined transport packets. Verify the IPv6 filter is applied on the interface using the command below: - show router interface "TO-PE2" detail | match "Ingr IPv6 Flt" Egr IPv6 Flt : none Ingr IPv6 Flt : 40 If the router is not configured to drop IPv6 undetermined transport packets, this is a finding.

Fix Text (F-88341r1203861_fix)

Configure the router to drop IPv6 undetermined transport/ first fragment packets, as shown in the example below: Create an IPv6 filter: - configure filter ipv6-filter 40 create - config>filter>ipv6-filter# entry 10 create - config>filter>ipv6-filter>entry$ match fragment first-only - config>filter>ipv6-filter>entry$ action drop - config>filter>ipv6-filter>entry$ exit all Apply the IPv6 filter on the interface: - configure router interface "TO-PE2" ingress filter ipv6 40