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BGP Mitigation

BGP DDoS Protection Guide

Protect prefixes before attack traffic reaches your edge.

BGP DDoS protection uses route announcements to steer traffic through mitigation capacity, keeping IP networks reachable during large network-layer attacks.

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01

How BGP-routed mitigation works

A provider announces protected prefixes or more-specific routes so inbound traffic flows through its scrubbing network. After filtering, clean traffic is delivered to the customer over transit, GRE tunnels, cross-connects or private backbone paths.

02

Why it is useful for networks

BGP protection is service-agnostic. It can protect web apps, game servers, VPNs, mail, DNS and whole subnets because mitigation happens before traffic reaches the customer edge, not only at an application proxy.

03

Blackholing and traffic engineering

Remote triggered blackholing can protect the rest of a network when a single target is overwhelmed, but it intentionally drops traffic to that destination. It should be documented as a last resort, not the primary mitigation plan.

BGP Mitigation

BGP DDoS checklist

Verify prefix ownership, ROAs and route objects

Agree normal and emergency BGP communities before incidents

Test clean-traffic delivery over GRE, transit or private handoff

Decide which prefixes require always-on protection

Monitor route convergence, packet loss and asymmetric paths

Document blackhole policy and escalation approvals

BGP DDoS FAQ

Do I need my own ASN for BGP protection?

It depends on the deployment. Networks with their own ASN can announce prefixes directly; smaller customers can often use provider-managed routing or protected IP space.

What is GRE delivery?

GRE delivery encapsulates clean traffic from the scrubbing network back to your router when direct transit or private connectivity is not used.

Is BGP DDoS protection only for large networks?

No. It is common for ISPs and enterprises, but it also helps hosting platforms, SaaS companies and game networks that need direct IP protection.

Protect your prefixes

TMW Shield supports BGP-routed mitigation, protected transit and engineer-assisted routing design.

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