this post was submitted on 18 Nov 2023
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I guess my ISP uses some subpar hardware because the connection keeps dropping at peak hours. I want to implement a failover system without having to buy some expensive router which I would not be able to justify with my normal usage.

Wanted to know some other ways how people do it .

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[โ€“] hiddenasian42@alien.top 1 points 1 year ago (1 children)

DSL main, cheap little LTE modem via USB as a fallback. Both are connected to my OPNsense as a gateway group. Failover happens after 5s of full packet loss (and a bunch of less aggressive failover conditions, latency etc.). That of course changes my public IPv4 address, so yes this drops existing connections. Not a big deal for most stuff, Netflix reconnects quickly enough that this isn't even noticeable. For the stuff where the connection can't drop like that, I run a VPN tunnel on each of the two uplinks to a small relay box with a static IP sitting in a datacenter. When DSL fails, the traffic is routed through the other VPN link but comes out of the relay box with the same public IP.

[โ€“] bigDottee@alien.top 1 points 1 year ago

Do you have any tutorials that you followed for this type of configuration?