Height8

10 July 2025

The Ultimate Guide to ISP RADIUS: Everything You Need to Know

What is ISP RADIUS?

ISP RADIUS is a robust, scalable AAA (Authentication, Authorization, Accounting) solution designed specifically for ISPs/CSPs/Telcos. It manages user access, session tracking, and accounting through a centralized system making it easier to deliver secure, reliable connectivity to their subscribers.

Height8 is tailored to the unique challenges of service providers, including user concurrency, bandwidth shaping, integration with billing systems, and support for various access devices (NAS, routers, PPPoE servers, etc.).

H8 ISP Radius

Why RADIUS Matters for ISPs/CSPs/Telcos?

For service providers, RADIUS is the silent force behind every successful connection. It determines:

  • Who can connect (Authentication)
  • What they’re allowed to do (Authorization)
  • How much they've used and should be billed for (Accounting)

Without a reliable RADIUS system, ISPs face issues like unauthorized access, session tracking failures, incorrect billing, and service downtime.

Key Features of H8 RADIUS

Here’s what makes H8 stand out:

  • Multi-platform support (MikroTik, Huawei, Cisco, Juniper, etc.)
  • Session tracking
  • Bandwidth throttling per policy
  • Failover and redundancy support
  • Real-time accounting with prepaid/postpaid models
  • Radius Proxy support
  • RESTful API for integration

Security Best Practices

  • Use unique shared secrets per NAS
  • Enforce TLS for API communications
  • Enable login attempt limits and logging
  • Regularly patch the OS and H8 platform
  • Restrict access to the RADIUS server to internal IPs only

In Conclusion

H8 ISP RADIUS isn’t just another AAA solution, it's purpose-built for the scalability, performance, and complexity of real-world ISP environments. Whether you're a local WISP or a nationwide provider, having a rock-solid RADIUS platform is non-negotiable.

Have any questions or want to have a demo of the H8 Radius? Contact us right now! Write us a mail at h8ssrms@height8tech.com or call us on +91-079-40089216.

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