http://www.rfc-editor.org/rfc/rfc7126.txt
RFC 7126: Recommendations on Filtering of IPv4 Packets Containing IPv4 Options, F. Gont, R. Atkinson, C. Pignataro2014-02-01T23:00:00-00:00This document provides advice on the filtering of IPv4 packets based on the IPv4 options they contain. Additionally, it discusses the operational and interoperability implications of dropping packets based on the IP options they contain.