Mutually Agreed Norms for Routing Security (MANRS)

Mutually Agreed Norms for Routing Security (MANRS) is a global initiative, supported by the Global Cyber Alliance , that provides crucial fixes to reduce the most common routing threats. MANRS outlines four simple but concrete actions that network operators should take: Filtering – Ensure the correctness of your own announcements and of announcements from your customers to adjacent networks with prefix and AS-path granularity Anti-spoofing – Enable source address validation for at least single-homed stub customer networks, your own end-users, and infrastructure Coordination – Maintain globally accessible up-to-date contact information Global Validation – Publish your data, so others can validate routing information on a global scale A separate set of Actions applies explicitly to Internet Exchange Points and CDN and Cloud providers.