Re: PPTP performance

["Ryan Russell" <Ryan.Russell () sybase com>]

> Do you think Windows NT and PPTP is a good solution as VPN?

*I* don't.  My main complaint now is that it uses the user password
to generate session keys, meaning that the encryption, even
the "128-bit" version is only as good as the user password.  IIRC,
most passwords are good for about 4 or 5 bits of entropy, meaning
at least 26-character passwords..  and you can only use 14 characters.

Were you asking about some aspect besides security?

> If yes,how to
> improve the performance?

I've heard there are problems if Path MTU discovery gets blocked.

> If PPTP can be used to LAN-LAN connection? Any advice
> is appreciated greatly.

Like a WAN replacement?  Or across a LAN?  In either case, yes,
people have gotten it to work (not me, haven't tried.)

You might also check:

http://kubarb.phsx.ukans.edu/~tbird/vpn.html

                    Ryan