Re: How to use two WAN connections at once?

[David Young <dyoung%pobox.com@localhost>]

On Mon, Nov 19, 2012 at 03:50:28PM +0100, Frank Wille wrote:
> David Young wrote:
> 
> >> Is that possible with ipfilter or pf? How would I do that?
> >
> >Yes, it is possible.  I have done just what you want.
> 
> Great! :)
> 
> 
> >The trick is to use PF to pin each flow to a particular WAN connection.
> >In that way, if WAN 1 is disrupted *temporarily*, flows on that
> >connection may stall for a while, but they have the possibility to
> >recover, which is important.  Meanwhile, you establish all new flows on
> >WAN 2 while the WAN 1 disruption persists.  When WAN 1 recovers, you may
> >establish new flows on either connection, again, and the WAN 1 flows
> 
> That would be very good. I guess it will also work, when the machine
> running PF is not directly connected to the WAN interface (ifwatchd is
> useless for me), but will just route the packets to the next host (which
> is e.g. a DSL-router/modem)?

Are there two DSL routers/modems, or just one?  If two, are they
connected to your NetBSD router on two independent LAN segments?

Dave

-- 
David Young
dyoung%pobox.com@localhost    Urbana, IL    (217) 721-9981