STIGQter: STIG Summary: Cisco NX-OS Switch RTR Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Apr 2021:

The Cisco PE switch must be configured to have each VRF with the appropriate Route Distinguisher (RD).

DISA Rule

SV-221119r622190_rule

Vulnerability Number

V-221119

Group Title

SRG-NET-000512-RTR-000007

Rule Version

CISC-RT-000650

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Configure the correct RD for each VRF.

SW1(config)# vrf context CUST1
SW1(config-vrf)# rd 13:13
SW1(config-vrf)# end

Check Contents

Review the design plan for MPLS/L3VPN to determine what RD has been assigned for each VRF. Review the switch configuration and verify that the correct RD is configured for each VRF. In the example below, route distinguisher 13:13 has been configured for customer 1.

vrf context CUST1
rd 13:13
address-family ipv4 unicast
route-target export 13:13
route-target import 13:13

Note: This requirement is only applicable for MPLS L3VPN implementations.

If the wrong RD has been configured for any VRF, this is a finding.

Vulnerability Number

V-221119

Documentable

False

Rule Version

CISC-RT-000650

Severity Override Guidance

Review the design plan for MPLS/L3VPN to determine what RD has been assigned for each VRF. Review the switch configuration and verify that the correct RD is configured for each VRF. In the example below, route distinguisher 13:13 has been configured for customer 1.

vrf context CUST1
rd 13:13
address-family ipv4 unicast
route-target export 13:13
route-target import 13:13

Note: This requirement is only applicable for MPLS L3VPN implementations.

If the wrong RD has been configured for any VRF, this is a finding.

Check Content Reference

M

Target Key

4075

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