STIGUI
V-273571CAT II — Medium severitySV-273571r1110907_rule

The RUCKUS ICX BGP router must be configured to reject inbound route advertisements for any prefixes belonging to the local autonomous system (AS).

Rule version RCKS-RTR-000030 · STIG v1 · 2025-06-03

Discussion

Accepting route advertisements belonging to the local AS can result in traffic looping or being black holed, or at a minimum using a nonoptimized path.

Check

Review BGP neighbor configuration using "show running-config | begin router bgp".

If any BGP neighbor is configured for the "neighbor x.x.x. allowas-in" command, this is a finding.

Fix

Remove the command "neighbor x.x.x.x allowas-in" where found in the BGP neighbor configuration.

Identifiers

Group ID
V-273571
Group title
SRG-NET-000018-RTR-000003
Rule ID
SV-273571r1110907_rule
Check ID
C-77662r1109733_chk
Fix ID
F-77567r1109734_fix