Does Mac Pro use ethernet 1 by default for internet ? (dual nic question)

Question

Greets all - loving my Mac Pro so far and will likely never have a pc only again - as already switched to macbook pro a year ago - (boot camp still for the pc games at times but rather be in OS X and fusion anyday)
Anyway at home I have both a Cable Modem and DSL - the wife and I both work in IT and every once in a while one or the other goes out and if we cant get in remotely at all times its a problem
I use the cable modem and the DSL is routed through an Apple Time Capsule to her Imac and kids pc's
I hooked in the TC to my second NIC as occasionally I want to get files off it - and it showed up fine - running tracert and speedtest.net shows my internet access still going through port 1 through the cable modem
This is what I want as it is faster overall but I was curious if anyone knows if by default OS X will always use eth 1 for internet and only eth 2 when I try and access the Time Capsule (have extra hd off it on usb also) or that subnet ? Or do I need to so something to force it to always use eth1 for internet access
(starting to read up on the aggregation possibilities but wanted to see the basics of how it works like this first)

Answer 1

OS X uses the connection that is first in the list of ports in Network preferences. You can rearrange by clicking on the options button below the list, select re-order, then arrange. OS X also by default connects to the Ethernet port to which the cable is connected unless you have both ports connected to separate routers. Then the order is determined by the port listing.