The Nokia perimeter router must be configured to not be a Border Gateway Protocol (BGP) peer to an alternate gateway service provider.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-283879 | NOKI-RT-000610 | SV-283879r1203886_rule | CCI-001414 | high |
| Description | ||||
| Internet Service Providers (ISPs) use BGP to share route information with other autonomous systems (i.e., other ISPs and corporate networks). If the perimeter router was configured to BGP peer with an ISP, NIPRNet routes could be advertised to the ISP; creating a backdoor connection from the internet to the NIPRNet. | ||||
| STIG | Date | |||
| Nokia Service Router OS 25.x Router Security Technical Implementation Guide | 2026-06-15 | |||
Details
Check Text (C-283879r1203886_chk)
This requirement is not applicable for the DODIN Backbone.
Review the configuration of the router connecting to the alternate gateway.
Verify the alternate gateway using the command below:
- show router static-route 0.0.0.0/0
Static Route Table (Router: Base) Family: IPv4
Prefix Nexthop Tag Met Pref Type Act
Next Hop Interface
-------------------------------------------------------------------------------
0.0.0.0/0 0 1 5 NH N
10.50.10.1 n/a
-------------------------------------------------------------------------------
No. of Static Routes: 1
If BGP neighbors are connecting the remote AS of the alternate gateway service provider, this is a finding.
Fix Text (F-88349r1203885_fix)
This requirement is not applicable for the DODIN Backbone.
Configure a static route on the perimeter router to reach the autonomous system of a router connecting to an alternate gateway, as shown in the example below:
- configure router static-route-entry 0.0.0.0/0 next-hop 10.50.10.1 no shutdown