AMLS-L3-000190 - The Arista Multilayer Switch must enforce that the managed network domain and the management network domain are separate routing domains and the Interior Gateway Protocol instances are not redistributed or advertised to each other.

Information

If the gateway router is not a dedicated device for the out-of-band management network, several safeguards must be implemented for containment of management and production traffic boundaries; otherwise, it is possible that management traffic will not be separated from production traffic.

Since the managed network and the management network are separate routing domains, separate Interior Gateway Protocol routing instances must be configured on the router, one for the managed network and one for the out-of-band management network. In addition, the routes from the two domains must not be redistributed to each other.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

Configure the Interior Gateway Protocol instance used for the managed network to prohibit redistribution of routes into the Interior Gateway Protocol instance used for the management network, and vice versa.

This can be configured via the VRF configuration provided in SRG-NET-000019-RTR-000012.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Arista_MLS_DCS-7000_Series_Y24M07_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-4, CAT|II, CCI|CCI-001414, Rule-ID|SV-217497r382735_rule, STIG-ID|AMLS-L3-000190, STIG-Legacy|SV-75365, STIG-Legacy|V-60907, Vuln-ID|V-217497

Plugin: Arista

Control ID: 40ea213fb82bbc0abe1f63603d0ffff592766b2ef1b48e15926ea7a6b9d653b4