Force an application to use a specific interface

[ayu]

Ok so I have two network interfaces on my computer.
They are eth0 and wlan0.

I want everything in general to just use eth0, which is working like normal.
But there is one application that I want to force to use wlan0, even when eth0 is still active.

I have googled a little, and I could find people who had the same question, but not a definite answer.

Anyone have any idea?

[bad_brain]

hm, is the app using specific ports or a specific protocol?
if yes you could do that by using the FORWARD chain of iptables...

[ayu]

hm, is the app using specific ports or a specific protocol?
if yes you could do that by using the FORWARD chain of iptables...

hmm nope, no specific port or protocol.
Just uses a random port out, and the port it connects to is the default http, which I want to use for the browser of course as well, on the other interface.
The protocols used are HTTP and TCP, so hard to FORWARD

Must be others who wanted to do this, so I shall continue my google quest!
If anything else comes to mind, then I would greatly appreciate it

Thanks for the answer buddy, talk later!

[Lundis]

Can you force the application into binding the socket to a specific out port? as in, do you have the source and a bit of luck?

[ayu]

Can you force the application into binding the socket to a specific out port? as in, do you have the source and a bit of luck?

hmmm, maybe ... I do have the source, so maybe I can give that a try

Thanks for the replies guys