STIGQter: STIG Summary: Cisco IOS XR Router RTR Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 23 Oct 2020:

The Cisco PE router must be configured to have each Virtual Routing and Forwarding (VRF) instance with the appropriate Route Target (RT).

DISA Rule

SV-216792r531087_rule

Vulnerability Number

V-216792

Group Title

SRG-NET-000512-RTR-000006

Rule Version

CISC-RT-000640

Severity

CAT I

CCI(s)

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

Weight

10

Fix Recommendation

Configure the router to have each VRF instance defined with the correct RT.

RP/0/0/CPU0:R3(config)#vrf COI1
RP/0/0/CPU0:R3(config-vrf)#address-family ipv4 unicast
RP/0/0/CPU0:R3(config-vrf-af)#import route-target 13:13
RP/0/0/CPU0:R3(config-vrf-af)#export route-target 13:13
RP/0/0/CPU0:R3(config-vrf-af)#end

Check Contents

Review the design plan for MPLS/L3VPN and VRF-lite to determine what RTs have been assigned for each VRF. Review the router configuration and verify that the correct RT is configured for each VRF. In the example below, route target 13:13 has been configured for COI1.

vrf COI1
address-family ipv4 unicast
import route-target
13:13
!
export route-target
13:13
!
!
!

If there are VRFs configured with the wrong RT, this is a finding.

Vulnerability Number

V-216792

Documentable

False

Rule Version

CISC-RT-000640

Severity Override Guidance

Review the design plan for MPLS/L3VPN and VRF-lite to determine what RTs have been assigned for each VRF. Review the router configuration and verify that the correct RT is configured for each VRF. In the example below, route target 13:13 has been configured for COI1.

vrf COI1
address-family ipv4 unicast
import route-target
13:13
!
export route-target
13:13
!
!
!

If there are VRFs configured with the wrong RT, this is a finding.

Check Content Reference

M

Target Key

4029

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