I know enough about networking to be dangerous (did my CCNA R&S a few years ago) but I'm kind of out of my depth on this one.First scenario:If I have two home internet connections, say UFB and Cable or UFB and Skinny 4g, each connected via a standard ISP supplied router. I want devices on the network to switch to the secondary connection when the primary connection is down? Assume that for <reasons> I can't remove or replace the existing routers. I could conceivably put additional hardware between the network and those two routers, if I did so, what if anything could I put in to automatically route traffic down the primary connection when it's up, detect when it can't reach the internet through that connection and failover to the secondary connection, and flip back when required all automatically.Second scenario:Two business grade UFB connections, each a UFB ONT connected to Cisco ASA, Fortigate, Sonicwall or similar device. Probably each going to a seperate ISP. How do I have fully automated failover like above? Brain says VRRP or similar between the devices, but because they are connected to the ONT via ethernet, I think that as long as that ethernet connection is up, the failover wouldn't kick in? I'm thinking that if we had our own AS and were running BGP we could achieve this, but not 100% sure if that would and would prefer a cheaper option than buying IP's and paying money to APNIC every year anyways :-) The ideal solution should allow for connection A to be the primary connection B for local subnet X and Connection B to the primary connection for local subnet Y, and allow failover either way.Is any of this possible? If so, how :-)
↧