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4 Commits

Author SHA1 Message Date
Ruslan Ermilov
03453c5e87 A significant rewrite of PPTP aliasing code. 
PPTP links are no longer dropped by simple (and inappropriate in this
case) "inactivity timeout" procedure, only when requested through the
control connection.

It is now possible to have multiple PPTP servers running behind NAT.
Just redirect the incoming TCP traffic to port 1723, everything else
is done transparently.

Problems were reported and the fix was tested by:
		Michael Adler <Michael.Adler@compaq.com>,
		David Andersen <dga@lcs.mit.edu>
 2000-10-30 12:39:41 +00:00
Ruslan Ermilov
0eb10a0963 - Do not modify Peer's Call ID in outgoing Incoming-Call-Connected 
PPTP control messages.

- Cosmetics: replace `GRE link' with `PPTP link'.

Reviewed by:	Erik Salander <erik@whistle.com>
 2000-08-09 11:25:44 +00:00
Ruslan Ermilov
934a4fb381 Adjust TCP checksum rather than compute it afresh. 
Submitted by:	Erik Salander <erik@whistle.com>
 2000-08-07 09:51:04 +00:00
Ruslan Ermilov
55a39fc5a2 Added true support for PPTP aliasing. Some nice features include: 
- Multiple PPTP clients behind NAT to the same or different servers.

- Single PPTP server behind NAT -- you just need to redirect TCP
  port 1723 to a local machine.  Multiple servers behind NAT is
  possible but would require a simple API change.

- No API changes!

For more information on how this works see comments at the start of
the alias_pptp.c.

PacketAliasPptp() is no longer necessary and will be removed soon.

Submitted by:	Erik Salander <erik@whistle.com>
Reviewed by:	ru
Rewritten by:	ru
Reviewed by:	Erik Salander <erik@whistle.com>
 2000-06-20 11:41:48 +00:00