Which nic will an app use?

[Richard Herb]

I have one nic on optimum online, and one nic on FIOS

I can never tell which one I am using without going into DOS, and
using "route print"

I am dyslexic and changing routes all the time in DOS is really
frustrating.
Also, the whole PC seems to use one nic or the other.

Is there any way I can switch nics in a GUI? or with one mouse click?


second and much less important question.
can I tell utorrent to use FIOS(nic1) and Ares to use Optonline
(nic2)?



thanks

Running Vista Ultimate Sp1, RAID 0, 7200 RPM, 4 GB RAM
(with 3.5 gigs of dreamscenes)

 

[the wharf rat]

I have one nic on optimum online, and one nic on FIOS

I can never tell which one I am using without going into DOS, and
using "route print"

The way routing works is you set the default route at one
interface, and then traffic for the two directly attached networks
will route to whichever interface is appropriate and the rest goes to the
one with the default route. If you're seeing traffic to the same destination
leaving/arriving by two paths, check for

More than one default route with the same metric (priority). It's
possible to specify the 0.0.0.0 destination for more than one interface but
they need to have different metrics. (the metric kind of sets the preference)

Both nics on the same network. That generally results in undefined
behavior. Don't do that.

can I tell utorrent to use FIOS(nic1) and Ares to use Optonline
(nic2)?

Not easily.


I don't know what fios and optonline are but it sounds as though
you're using two providers at once. That's called "dual homing" and requires
that you manually set interface and route priorities. To do that open the
advanced settings in the tcp properties and set the priority of the nic you
DON'T want most traffic to go through to something >1. There's no easy way
to route traffic per destination on a home pc. (Linux will do this though
(Well, ok it still won't be easy...)