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

The Cisco perimeter switch must be configured to suppress Router Advertisements on all external IPv6-enabled interfaces.

DISA Rule

SV-237758r648791_rule

Vulnerability Number

V-237758

Group Title

SRG-NET-000512-RTR-000014

Rule Version

CISC-RT-000391

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Configure the switch to suppress Router Advertisements on all external IPv6-enabled interfaces as shown in the example below.

SW1(config)#int g1/0
SW1(config-if)#ipv6 nd ra suppress
SW1(config-if)#end

Check Contents

This requirement is not applicable for the DODIN Backbone.

Review the switch configuration to verify that Router Advertisements are suppressed on all external IPv6-enabled interfaces as shown in the example below.

interface gigabitethernet1/0
ipv6 address 2001::1:0:22/64
ipv6 nd ra suppress

If the switch is not configured to suppress Router Advertisements on all external IPv6-enabled interfaces, this is a finding.

Vulnerability Number

V-237758

Documentable

False

Rule Version

CISC-RT-000391

Severity Override Guidance

This requirement is not applicable for the DODIN Backbone.

Review the switch configuration to verify that Router Advertisements are suppressed on all external IPv6-enabled interfaces as shown in the example below.

interface gigabitethernet1/0
ipv6 address 2001::1:0:22/64
ipv6 nd ra suppress

If the switch is not configured to suppress Router Advertisements on all external IPv6-enabled interfaces, this is a finding.

Check Content Reference

M

Target Key

4065

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