From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
> > Trunk(4) provides link redundancy. Say you had a NIC on a 
> box cabled 
> > into a switch. That switch port dies, your box falls off 
> the network. 
> > Introduce trunk, now you have two NICs in your box, cabled to two 
> > switch ports. One port dies (or one NIC); you have a 
> redundant link to 
> > the switch and your box stays online.
> >
> > Read the manual and you'll find it has other uses as well (e.g. 
> > thoughput aggregation traditionally) but what you described 
> is really 
> > not what it would be. Your word was "routing", which is 
> certainly not 
> > what it does (higher in the stack than trunk(4).)
> >
> > DS
> >   
> Ok. I think I understand. The trunk interface really has no 
> idea how to route anything. It just sees packets (like any 
> other interaface?).  But couldn't one then use routed to 
> route packets coming in over the trunk interface to anywhere 
> else? I'm probably just revealing my ignorance here.
> 
> I'm really just harping on this to further my understanding. 

Fair reason.

> Feel free to ignore or respond as you wish. I've given up on 
> the idea of using trunk for  this paraticular application and 
> am gonna go back to pf

I don't do this myself, but you should look at the options available that
allow  you to control this kind of thing. Distributing traffic out multiple
ISPs is something BGP can help with; you may or may not be in the situation
that it can be used with your providers.

PF's route-to options may help here. Don't know for certain as I don't have
the luxury of multiple links.

Be sure to check the PF FAQ (http://www.openbsd.org/faq/pf/) and pf.conf(5)
manual page for information.

DS

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