Using multiple IP address


Is it possible to have multiple IP address simultaneously with traffic on both interface and direct certain ports (especially smtp) to use a particular interface ?.

Currently my test machine connects broadband & dial-up simultaneously, but it simply uses first connected service. All traffic is thru dial-up modem if it is connected first.

My requirements are.

1, All network demanding apps should use ethernet while email, text chat, should use dial-up.​

2, Divert all outgoing traffic thru one NIC/modem and receive via another NIC.​

Thanks in advance.