Re the Davicom USB issues; what kernel version is being used? Is it a
2.6.21 kernel on the balloon? There's been a patch to eliminate
trailing garbage since then, though I doubt it's the source of the
problems:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=23de559b8d3537f972f325e7e015c18aa2e4d987

If someone can confirm the kernel version in use (and does the remote
end have to be Windows or will Linux cause issues too?) then I'll see
if I can reproduce locally - presumably any large amount of traffic
will cause it to fall over or see packet loss?

J.

-- 
Revd. Jonathan McDowell, ULC | Orc, the other white meat.