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multiple (backup) gateways

Z

ZippyDan

Platinum Member
in Windows 7 it is easy for me to add alternative gateways in the network adapter properties.

i simply give my primary gateway a metric of 1, and then set my backups with metrics of 1000, 2000, etc.

in Mac OS X (snow leopard), i don't see any to define more than 1 router for each interface. any insight?
 
It's called "Dead Gateway Detection" if you're google searching.

OS X doesn't support it like Windows NT and its offspring do. IPNetRouterX might be the thing you're looking for.
 
I would think it would be more reliable to do it at the switch/router level anyway. If this is for a business you probably have more devices that aren't smart enough to do that too like printers, fax machines, VOIP phone system, etc.
 
why don't you handle this at the router? it makes more sense. freebsd can do dual gateways. you could run that in a vm (Pfsense) and let it handle the dual wan routing too.

$100 for a used dual-wan router that handles 50meg no problem (basic nat router). icmp/dns/ping to detect failure of wan. honestly with a real pfsense setup can do better like https - get - if fail x times - down gateway and route traffic the other way.

Since 20% packet loss can cripple users on SSL or DNS but might appear not too bad for http.
 
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