Re: Using two network connections - by application

In article <C8A277A8-DE0E-4ADA-A9A8-B2EA7A777FAD@xxxxxxxxxxxxx>,
jrleighton <jrleighton@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
For the benefit of others, this is how to do what I originally asked for.
Still have another question (below) if anyone is up to speed on this and can
help.

No additional software needed, Windows can route traffic by application /
network adapter combination already.

All apps access the internet using specific ports - this assumes (which will
largely be true) that each app has its own specific ports for internet access.

Exclude your apps from the windows firewall exceptions (keep firewall on
though).
Then go to Windows Firewall settings Advanced tab, click settings on Network
Connection Settings for each spefic network adapter that accesses the
internet.
For each network adapter, you will need to add each application (using port
numbers) as an additional service specific to that adapter.

It's a real pain doing this, of course, so the queston I have is - is there
anything out there that makes this easier to configure and switch apps
between adapters ?

Thanks

This is an interesting setup, but I don't think that it can do what
you want. What applications are you trying to control? Have you
tested it by watching the traffic on each network adapter for each
application?

The Windows Firewall is an incoming-only firewall. All it can do is
allow or disallow unsolicited incoming connection requests from the
Internet to your computer.

In typical applications (web browsing, sending and receiving E-mail,
reading news groups, etc) there are no unsolicited incoming connection
requests from the Internet to your computer, so the Windows Firewall
has no effect.

Unsolicited incoming connection requests typically only occur if
you're running servers (web, FTP, etc) on your computer. If an
incoming connection request isn't allowed on the network connection
that received it, there's no way to redirect the request to another
network connection.

All outgoing connection requests from your computer to the Internet
use the default gateway. There can only be one active default
gateway, regardless of how many network connections there are. All of
your outgoing connection requests will use the same network
connection. The Windows Firewall has no effect on outgoing network
connections.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
.

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