On Jun 26, 2012, at 1:56 PM, Jeff Morriss wrote:
> Pretty much, yes. The intent (I think) was just to allow capturing on
> 2 interfaces simultaneously (rather than having to run 2
> Wiresharks/dumpcaps and then merge the traces offline).
>
> But nothing was added to separate out potentially-duplicated traffic.
> (The use case is more for multi-homed hosts.)
Yes. Not all ways you can perform multi-interface capture are necessarily *useful*. Think of it as being similar to the "any" device on Linux (the differences are that
1) you can control options on individual interfaces separately;
2) the interfaces can supply different link-layer header types;
3) you have to specify the list of interfaces when you start the capture).
