Forcing a packet through an interface (OT?)

[John Oxley]

On Tue, Jul 12, 2005 at 09:45:21AM -0600, Chad Leigh -- Shire.Net LLC wrote:
> 
> On Jul 12, 2005, at 5:38 AM, Mario Lobo wrote:
> 
> >First, thanks to all for the suggestions.
> >
> >Now, using the same scenario,
> >
> >
> >>>1) rl0 (real.ip.no.1) ---> ISP x
> >>>
> >>>2) rl1 (real.ip.no.2) ---> ISP y
> >>>
> >
> >Suppose 1) is down and I?m using 2). If I "ping www.google.com",
> >it will go out through 2). What I really need to do is to issue
> >the same "ping www.google.com" but make go out through 1) !!
> 
> Nom what you want to do is
> 
> ping   isp1.router.net

no, ping -r isp1.router.net

     -r     Bypass the normal routing tables and send directly to a
            host on an attached network.  If the host is not on a
            directly-attached network, an error is returned.  This
            option can be used to ping a local host through an interface
            that has no route through it (e.g., after the interface was
            dropped by routed(8)).


or maybe have a look at the -S flag
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