Protect the Internet
Mutually Agreed Norms for Routing Security (MANRS) is a global initiative that helps reduce the most common routing threats.




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Beyond Their Intended Scope: DDoS Mitigation Leak
Editor’s Note: This is a guest post from Doug Madory (Kentik) originally published on 8 April 2025 at https://www.kentik.com/blog/beyond-their-intended-scope-ddos-mitigation-leak/. Summary In this edition of Beyond Their Intended Scope, we take a look at last week’s BGP leak by a DDoS mitigation company which impacted networks around the world. We look at the impacts in both BGP […]
Approved: MANRS Development Process
Reflecting on “Routing security: fostering continuous improvement” at APRICOT2025
Why Join MANRS?
Every day, routing security incidents affect the Internet and the organizations and people that rely on it. MANRS sets security norms to reduce those incidents.
Participants across four programs

Improve security by preventing attacks and accidents

Join a community committed to a more robust and secure Internet

Lead the industry by inspiring and encouraging other operators
The Observatory
The MANRS Observatory monitors the state of Internet routing security. It aggregates data from multiple sources and projects to help network operators improve the security of their networks. See how your network is doing.
Filtering
Anti-spoofing
Coordination
Routing Information (IRR)
Routing Information (RPKI)
Testimonials
With a greater reliance on the internet now more than ever, it is crucial that the internet is stable and offers secure and trusted methods to connect users. It is the responsibility of the global community to work together to ensure that the whole ecosystem forming the internet works well and is protected against threat actors. Juniper Networks is a proud supporter of the MANRS program and will continue to strive for a better internet in today’s connected world.
Consulting Engineer, Juniper NetworksAdherence to MANRS is an important commitment that operators make back to the Internet community. Together we aim to remove the havens from which miscreants maintain the freedom and anonymity to attack our network and our customers.
Claranet GroupAs the provider of a network that connects NZ's researchers, educators, and students to the rest of the world, REANNZ has always taken the security and stability of our members’ networks seriously. MANRS’ pragmatic and straightforward framework for implementing best practice routing security reflects and expands upon our own efforts in this area. We support this initiative and encourage wider adoption of it throughout the Internet community for the benefit of all.
DC1 is commited to be a good internet citizen, and strives to deploy responsible network routing practices as a foundation for a stable and secure internet for everyone.
We fully agree with the general guidelines of the MANRS initiative, since we have always ensured our state of the art network follows security best practices. Forthnet believes that improvement of routing security will happen through cooperation and being part of that effort is the right thing to do.
It is in everyone's best interest to keep the internet clean. By doing our part and conforming to the objectives stated by MANRS, we can reduce the impact of intended and unintended misconfigurations and the risk of abuse of internet resources and we hope that others will do so as well.
BIT BVSince its beginnings, RedIRIS has striven to maintain a secure and resilient network, deploying the most updated best practices and, as a National R&E Network, disseminating them to its customers in order to get from them a commitment of deploying these best practices in their networks as well. Adhering to MANRS initiative reinforces this position.
Mazeda Networks has endeavored to keep up a safe and flexible network, conveying the most refreshed prescribed procedures and, as a National ISP Network, spreading them to its clients so as to get from them a dedication of sending these accepted procedures in their systems also. Holding fast to MANRS activity fortifies this position.
For Arista, security is a key attribute of our overall solution, starting at the routing perimeter for worldwide Internet resiliency. As a global industry leader in cloud networking, we want to take part in the efforts to secure the Internet as well. MANRS is providing great guidelines to achieve that goal and Arista Networks is proud to be a founding participant of the MANRS Vendor Program.
Senior Vice President, Customer Engineering for Arista NetworksRouting security is crucial to Internet security, and that includes network devices (e.g., routers and IXP switches), the foundation of the Internet. Over the years, Huawei has dedicated itself to building secure and reliable network devices and has extensive capabilities and experience in the field. Huawei is honored to join MANRS as an active contributor to Internet security.
President of Metro Router domain of Data Communication Product LineComcast is committed to helping drive improvements to the reliability of the Internet ecosystem. We are thrilled to be engaged with other infrastructure participants across the spectrum and around the globe in pursuit of these goals.
Vice President, Internet Services, ComcastSaicom consistently push to ensure a clean and stable internet infrastructure for our clients. MANRS allows us to ensure our clients that we take the right steps in securing their routes
Network Operations