Overview

The Auto-Relay feature (formerly called Failover) allows multiple gateways to act as relays for peers, making the network more flexible and resilient.

Key points:

• Multiple auto-relays can be configured simultaneously.

• Peers automatically select the relay with the lowest latency.

• All gateways are auto-relay enabled by default, meaning any new gateway can act as a relay immediately.

• Useful in NAT scenarios: Auto-Relay is especially beneficial when nodes are behind CGNAT, Double NAT, or restrictive firewalls, where direct peer-to-peer connections may fail.

How Auto-Relay Works

1. Each gateway advertises its Auto-Relay status across the network.

2. Peers evaluate which gateways are reachable and measure latency.

3. Peers connect through the active Auto-Relay gateway with the lowest latency.

4. If that gateway becomes unavailable, the peer automatically switches to another reachable Auto-Relay gateway.

This creates dynamic redundancy and ensures smooth network performance without manual failover setup.

Default Behavior

• Every new gateway is automatically set as Auto-Relay = ON.

• You can view or edit this setting in the Edit Gateway modal.

• Manual configuration is optional — Auto-Relay works automatically across gateways.

Notes

• Auto-Relay replaces the older Failover logic but retains backward compatibility.

• Any gateway can act as a relay without explicit assignment.

• Latency-based routing balances network load and maintains optimal data flow.

• Particularly helpful when NAT or firewall restrictions prevent direct peer-to-peer connections.