VPN solutions like PIA and Windscribe support ECMP configurations for traffic distribution.
VPN solutions like PIA and Windscribe support ECMP configurations for traffic distribution.
You can’t split a single tunnel across several ISPs since each provider assigns a different public IP address. This means half your traffic would come from one IP and the other half from another, preventing the connection from establishing. To access both services, you’d need at least two separate VPN setups, adjust routing to direct traffic appropriately, and then set up your software to support connections through both providers if available. Services that let you merge multiple ISPs typically create a single tunnel per provider, all linked to one central server in one datacenter. Both ends must use identical software to manage the split and combined traffic, delivering the total bandwidth from the datacenter with a unified source IP.
Consider using a single ISP for traffic while enabling ECMP on the router. This setup allows traffic to pass through the marked path and uses ECMP for load balancing elsewhere. Keep in mind that torrent data won't benefit from ECMP routing.
Ensure each ISP has a unique public IP address and avoid shared subnets larger than /24 that could be managed by both providers simultaneously via BGP. ECMP can cause instability when routing updates occur regularly, potentially switching connections and leading to failures. A more reliable approach is PCC, which assigns connections deterministically based on hashing rather than random chance.