Bonding NICs across two distinct networks
Bonding NICs across two distinct networks
Bonding across two networks is feasible, though it requires compatible equipment. You mentioned a 75 Mbit/s LTE and a 21 Mbit/s VDSL connection. The goal is to combine them for smoother performance, especially when the LTE drops to lower speeds like 10 Mbit/s. You're interested in load balancing—using the faster 75 Mbit/s when available and switching to the 21 Mbit/s when needed. Latency improvements are expected with VDSL. If you need help finding affordable solutions or setups, let me know.
Linus created a video about bonded internet at a low cost but used two same ISPs with matching plans. There aren’t any consumer products that automatically switch sources based on WAN bandwidth changes. You might explore prosumer Ubiquiti routers for fail-over and link aggregation, though they may not support bonding. ISP issues and privacy concerns exist, especially with services like Could Flare. I’d prefer using the faster source for your LAN and the slower one for your WLAN. This adds security and prevents wired network slowdown from many wireless devices. If you run servers, dedicating them to one ISP keeps things organized. Alternatively, set up fail-over as a backup. ISPs are usually dependable, but having a fallback gives peace of mind. You could combine different options depending on your needs.
pfSense can handle both load balancing and failover functions effectively.