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 offers specific actions via four programs for Network Operators, Internet Exchange Points, CDN and Cloud Providers, and Equipment Vendors.

Read more about our history, our partners, and what people are saying about the community. You can get involved by joining us, becoming a mentor or ambassador, participating in a working group, taking a training course, or attending an event.

How MANRS Helps

Joining MANRS means joining a community of security-minded organizations committed to making the global routing infrastructure more robust and secure. MANRS outlines simple, concrete actions organizations can take, tailored to their role on the Internet, including:


Ensure the correctness of your own announcements and of announcements from your customers to adjacent networks with prefix and AS-path granularity


Enable source address validation for at least single-homed stub customer networks, your own end-users, and infrastructure


Maintain globally accessible up-to-date contact information

Routing Information

Publish your data, so others can validate routing information on a global scale


Provide monitoring and debugging tools to help others


Actively encourage MANRS adoption among peers, customers, and partners