description OpenWrt Build for VPN Client Aggregation Overview
This build is designed for redundancy, allowing the router to maintain multiple active or standby VPN connections simultaneously. It implements sophisticated failover logic, automatically switching traffic to a backup VPN tunnel if the primary connection degrades or fails. This is critical for mission-critical links requiring near-zero downtime.
help OpenWrt Build for VPN Client Aggregation FAQ
How does OpenWrt aggregate multiple VPN clients?
Each VPN client can be represented as a logical interface, then policy routing can direct selected traffic through a preferred tunnel. OpenWrt's mwan3 documentation specifically notes that OpenVPN and WireGuard interfaces can participate in multi-interface routing.
Can this OpenWrt build fail over when the primary VPN dies?
Yes, the described design uses health checks and routing metrics to move traffic to a backup tunnel when the preferred path becomes unavailable. A real failover test should verify both tunnel loss and DNS behavior, because a route can remain up while the VPN endpoint is unusable.
Does VPN client aggregation combine bandwidth from several VPNs?
Failover and load balancing are different functions: failover selects a backup path, while load balancing distributes flows across paths. A single download usually will not become the sum of several VPN speeds unless the remote service and routing architecture support multipath operation.
Which VPN protocols can this OpenWrt build use?
The design is compatible with common OpenWrt client interfaces such as WireGuard and OpenVPN. The exact provider configuration still determines encryption, DNS handling, tunnel routes, and whether a kill switch prevents traffic from escaping through the normal WAN.
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