I'd like to know if there's any reliable tools I could use (integrate with my network config) to monitor the status of the gateway and switch the default gw when it detects that the main gateway is dead?
How reliable is ping based checking, anything else to achieve the same result? What method do you use, if any?
This is basically for "high-availability" internet sharing - office gateway is connected to two ISPs at the time and auto switches the active when the other one is down.
I'm looking for a reliable, possibly non ping based solution, software.