On Tue, Oct 24, 2006 at 08:59:13AM -0400, Michael D. Spence wrote:
> I'm running NetBSD 1.6.  My ex device (a 3com 3C905) supports hardware 
                     ^^^

2 nights ago I upgraded a box with a 3C905 from NetBSD 2.0 E
(1 May 2004) to current, so I can safely say that 1.6 (and 2.0E)
ifconfig didn't know about tcp4csum, but current does. (Can't
remember when it came in - guess 3.0?)

Cheers,

Patrick