[pptp-server] PPP speed

[Christopher L. Everett]

Hello all:

the manual says that the way to set the speed of 
the PPTP connection is with a line saying

speed xxxxxxxx

in the /etc/pptpd.conf where xxxxxxxx is the bit 
rate you want.  I'd like to know if there are other 
factors.  I'm using Linux-based PPTP servers on the
Internet to let people hook up to Win2K Terminal 
Servers accross the country, and while the remote
control experience in very nice, print performance 
using the standard MS redirection to the Terminal 
Server clients is abysmal, like 2 to 4 minutes to 
print a one page document (looks like 300+ KB are 
being sent).  Even with 144 KBPs or better at both 
ends, which should handle 350KB in 15-20 seconds
max, its really quite poor.

When I look at the load pptpd is putting on the 
firewall (P-133, 64 MB RAM) with top I see that its 
never more than 4% of capacity, so I don't think 
that 128 bit encryption is causing a slowdown like
the MS support engineer claimed ...

I'm pretty sure all this is due to the high quality 
engineering coming from Redmond, but I'm willing to 
entertain the possibilty of a tweak to PoPToP 
helping lots.

  --Christopher