Combining or linking several WAN connections together
Combining or linking several WAN connections together
Several routers support dual WAN connections, such as dual ISP setups, often using technologies like L3/L4 routing or bonding. The primary IP address is typically assigned to the active connection, while traffic may switch between links depending on performance or policy.
It's definitely feasible. I'm also focusing more on enterprise-grade equipment when necessary.
You need a load balancer to handle multiple connections simultaneously. The setup depends on your requirements, but with two routers linked to each ISP, you can set static routes to utilize one or both.
Balancing load across several WANs is straightforward for certain routers, boosting download speeds while occasionally causing traffic to jump between IPs. Most sites handle this smoothly. A capable router can also establish static routes for any sites that might fail under these conditions. Uploading is more complex and often needs proper bonding through your ISP or additional hardware like an OpenMPTCProuter VPS. I’ve used pfSense for this, though less frequently now—since 5G makes consistent balancing harder unless all WANs match in speed and latency (like my dual DSL setup).
Considering this, my main worry is the IP address section since certain clients must include your IP in their firewalls to permit access. Ideally, I’d just provide the single main IP and avoid sharing the individual ones. On my end, I’d prefer to keep things simple.
Typically, these clients should be directed via a consistent WAN to resolve the problem while maintaining overall stability.
Peplink Balance offers a business-friendly setup, though not flawless. It’s straightforward to configure and secure, supporting VPN connections between devices. The firewall uses an external IP from each link.
This setup ensures each IP address gets a chance by storing multiple A records. However, for customer interactions this approach may lack reliability.