I stumbled across this little gem of a blog post, I think this deserves a wider audience, via my twitter feed: http://mina.naguib.ca/blog/2012/10/22/the-little-ssh-that-sometimes-couldnt.html
To be filed under "tcpdump is your friend" and I must say I admire their perseverance in finding the root cause of the problem. - Peter -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/ "Remember to set the evil bit on all malicious network traffic" delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.