Per-Packet or Per Destination?
 

Here is a quick question:

On www.lartc.org chapter 4. They talk about load balancing mutliple links for internet access. Is this setup on a per-packet basis (ie the Linux router will send each packet for a session out a different interface) or is it a Per Destination (ie all packets destined to go to www.google.com) will be sent out the same interface as long as the session is up and running.

Thanks in advance.

i would be inclined to assume that it would be on a per flow basis, i.e. single UDP packet or whole tcp conversation. this is how most things like this function.