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On Sat, Feb 12, 2011 at 11:43 PM, Leo Razoumov wrote:

> On Sat, Feb 12, 2011 at 23:44, Thomas Harning Jr. wrote:
>> Let alone a way to define "default network interface".  Or is there?
>> Say I have 2 NICs, which one is default?

> The one which is associated with a default route is a default interface.
> On Linux one can get it via "route -n". From Lua one can use
> os.popen("route -n") and then parse the line with destination
> (default route) and extract the corresponding interface name.

I am using pppoe on my machine and "route" tells me
is ppp0, but that still doesn't tell me which NIC is ppp0
associated with.

 - Jeff