[SunRescue] Quad Port Redundent Internet

John Duksta rescue at sunhelp.org
Sat Dec 9 08:50:48 CST 2000


At 03:40 AM 12/9/2000 -0600, you wrote:

>Static routes with different metrics.  Have your primary interface have
>a metric of 1, the second a metric of 2... when the primary goes down,
>it will automatically send traffic out the 2nd interface.

But statics with different metrics would only work if the
inteface actually went down. With both the Cable Modem and
DSL bridges/routers, you most likely won't see the local ethernet
interface go down if you lose connectivity on the WAN side.

As noted, you'll probably need to write a script that pings
a reliable host outside via each of the interfaces. IIRC,
standard solaris ping includes a '-i' parameter to set which
interface to send the ping out. You could then check the errorlevel
that is returned by ping and act accordingly by resetting
your default route out the proper interface.

-john




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