IP Fragments - Worth doing, testing strategies?

Well, it turned out to be far easier to generate fragments than it was to debug them. I had the perfect TCP/IP stack that didn't try any fancy tricks to probe the MTU size all along - my own! An instance of DOSBox with routing properly setup to go through the Linux box did the trick. I ran netcat on both sides, and soon was awash in fragments. Then came the part I hate about DOS programming - memory corruption and crashes. I really hate it when I can't find the bug that causes the problem; I'm really paranoid about that kind of thing because once a little entropy creeps into the system, it's hard to remove. Eventually I figured out my bugs and it's been happily reassembling packets under all sorts of stressful conditions for the last few hours. Mike