Inter.link Launches FlexTunnel: Service Integration Without Physical Cross-Connects

Feb 13, 2026

FlexTunnel enables ISPs to integrate quickly with Inter.link services using GRE tunnels

Inter.link, the cross-continental NaaS provider, launches FlexTunnel, an automated, off-net way to integrate with Inter.link. 

FlexTunnel enables ISPs to integrate quickly with Inter.link services using GRE tunnels, removing the need for physical cross-connects while preserving existing network topology and upstream relationships. 

Theo Voss, CEO and Co-Founder of Inter.link, said: “Besides delivering quality connectivity in a quick, automated way, what Inter.link really cares about is being flexible enough to provide solutions that best fit an organization’s needs. 

“FlexTunnel is Inter.link’s new service offering, a GRE-based, software-driven integration model that allows ISPs to connect to selected Inter.link services without waiting for physical interconnects.” 

The primary use case for FlexTunnel is enabling off-net access to Inter.link’s carrier-grade DDoS Protection service. FlexTunnel provides the access layer and return path for clean traffic, while routing-based traffic redirection using BGP is applied only during mitigation events. 

When a DDoS attack occurs, affected IP prefixes are redirected to Inter.link for scrubbing, malicious traffic is filtered, and only clean traffic is returned to the customer through the tunnels. This allows customers to retain their existing upstream providers and network autonomy while benefiting from Inter.link’s carrier-grade DDoS mitigation capabilities without physical connectivity. 

FlexTunnel is intended to provide a controlled integration layer rather than a connectivity replacement. Traffic profiles, routing behavior, and performance characteristics are defined by the consuming service and by the public Internet paths used to establish the tunnels. 

Customers seeking sustained high throughput, full transit replacement, or strict latency guarantees should use physical connectivity options instead. 


About Inter.link

Inter.link is the cross-continental Network as a Service (NaaS) company, providing certified carbon neutral IP Transit, IP Access, Ethernet connectivity and DDoS protection services, on-demand in minutes. Inter.link’s AS5405 backbone network features 2500+ peers and low latency reach to Internet audiences. Inter.link is a certified B Corporation and has received PAS 2060 Carbon Neutral Certification.

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