Looking at our network, we have two companies (in one group, and data isn’t allowed to talk to each other)
Essentially, I’ve been thinking about how exactly we would make sure failover works for well, both companies. We have an ISP connection coming in for both companies , and they both come in through a core switch. We do have a couple of watchguard firewalls connected too. This is our current setup
They go through a layer three switch, prior to anything else. The router that we have isn’t used for anything much more than WiFi, and a PPPoE connection for another circuit
I had a look first, and noticed that there was a line on the config saying if the next hop to the firewall is deemed to be down, then disconnect, and that sorta makes sense, except of course that has a connection to the ISP
Now, I’m thinking that perhaps, if we do something like this
Perhaps that would force the internet to still work, if one ISP went down? I saw “dual failover” routers, but then I guess that in itself needs to be redundant. If one router dies, we’d lose both lots of internet connectivity.
I’ve been asked to ask here, after someone on reddit said to do so on r/networking (Same username)