On Sun, Jul 1, 2012 at 3:46 AM, Mr Dash Four <mr.dash.four@xxxxxxxxxxxxxx> wrote: > You refer to the incoming interface (interface on which packets arrive) as > the "source". That cannot be right. To me, it should be a "destination", not > "source" as the very definition of a "destination" is where something ends, > this is where a packet arrives and where the journey of the packet "stops" > (or where the packet is "destined" to arrive anyway). It should definitely > not be a "source" as the packet does not originate there, nor does it start > its journey there. > > Similarly for the outgoing interface - this isn't a "destination" interface > as the packet doesn't arrive there - it is where it starts its journey from! I think the current terminology is correct FWIW. From a local network stack perspective for locally- sourced/destined packets, the source of incoming packets is the interface and the destination is a local socket. The source of an outgoing packet is the local socket (where it starts its journey) and the destination is the outgoing interface. More importantly, I would consider your proposed terminology inarguably backward for the case of forwarded packets. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html