On Fri, Dec 28, 2001 at 06:27:18PM -0500, Jeff Workman wrote:
> To give a little bit more information about the problem:  The hangs are
> almost immediate, and occur any time there's more than just a few bytes
> sent over the connection.  Trying to scp or ftp even a small text file
> will cause the connection to hang until it times out.
> 
> Somebody emailed me in private and suggested that it might be PMTU
> discovery issues, so I turned off PMTU discovery on both ends but it
> didn't help.

You can test this with:
	ping -D -s 1472 1.2.3.4

If you have a sub 1500 MTU it won't work. :)
Otherwise, you should probably get a tcpdump on both ends.

-Andrew