[lug] Hosting Question

John Hernandez jph at jph.net
Mon Oct 2 17:21:53 MDT 2006

Jeffrey Siegal wrote:
> There are no TCP-over-TCP issues with SSH tunnels, unless you're using
> them to run PPP or something. Don't do that.

My experience has been that under certain circumstances, encapsulating
TCP in TCP can be more susceptible to an extended connectivity
"meltdown" than the typical VPN UDP encapsulation method.  But in other
cases, I've also seen very bad performance from the latter.  From the
little I've read about this, it seems to depend on network factors like
propagation delay, usage of TCP SACK, buffer sizes, and the like.
Interesting stuff, but I suppose it all boils down to, "whatever works
for you."

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