The PE router must be configured to ignore or block all packets with any IP options.
Overview
Finding ID
Version
Rule ID
IA Controls
Severity
V-216981
SRG-NET-000205-RTR-000016
SV-216981r945860_rule
Medium
Description
Packets with IP options are not fast switched and therefore must be punted to the router processor. Hackers who initiate denial-of-service (DoS) attacks on routers commonly send large streams of packets with IP options. Dropping the packets with IP options reduces the load of IP options packets on the router. The end result is a reduction in the effects of the DoS attack on the router and on downstream routers.