Thank you Ben, and all who responded. Yes, that was the overwhelming consensus, the single router/firewall solution feeding two gateways. It makes perfect sense.
Have a great weekend. Greg On 11/7/2015 9:40 PM, Ben Scott wrote: > On Fri, Nov 6, 2015 at 9:48 AM, Greg Kettmann <g...@kettmann.com> wrote: >> For various reasons, including reliability, I have two ISP's. In my >> original configuration I had two Gateways, GW1-192.168.1.1 and >> GW2-192.168.1.2 on one subnet. > You're better off having a single router, as the sole gateway on > your LAN, and having the router decide which ISP to use. That's what > routers are for, to choose the best network route. > > If you have multiple local networks for other reasons (e.g., work vs > home, or guests, etc.), apply the same principle to all of them. One > router, multiple local networks, multiple Internet connections. > > Note that "router" here could be a COTS solution (Cisco, Netgear, > et. al.), or a cheap home gateway running something like DD-WRT, or a > general-purpose computer running Linux or even a BSD. > > If it's simply about having Internet if an ISP goes down, all you > need is a way to detect which ISP is up. If both ISPs send RIP > advertisements, you just need to run a basic routing daemon. If not, > you'll need something that can detect what's up and what's not. > Google "dead gateway detection linux". > > If it's a matter of also making the best use of both ISPs when both > are up, that's usually called load balancing. > > If you want certain traffic to go over certain ISPs when possible > (e..g, work stuff uses ISP A, Netflix uses ISP B), that's called > policy routing. > > The http://lartc.org/ site has some good info on both of the latter > two, although it's getting a bit stale from lack-of-updates. > > If you need help configuring some aspect of that, describe which aspect. > > -- Ben > _______________________________________________ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
