how to Retreive Bounded Ip of system having 2 Lancards

Hi

My system has 2 lan cards(IP1,IP2)
when i ping with system name then say lP1 is pinging.
but when i ping another system having 2 lan cards (ip3,ip4)
ping is coming only from ip2 to ip4.
the above statement is checked with traceroute command at dosprompt . this indicates routing started from Ip2.

so is there any component to know from which Ip routing will be started (ip bounded to system)

Thank U
Himaja

You can use the Windows API functions for this. Try using GetBestInterface() or GetBestInterfaceEx() to show you the best route.
http://msdn.microsoft.com/library/e....asp?frame=true

Next, you can call GetAdaptersInfo(), if you want more information about the adapters:
http://msdn.microsoft.com/library/e....asp?frame=true