Make next version usable with Privaria?

Below is a copy of a posting I made to this list back in January. If there's 
any interest in incorporating the next version of SpeakFreely into Privaria, 
I'd be happy to assist on my end of things. As indicated below, the only 
obstacle has been RTP's use of the same UDP port for transmit and receive. A 
simple command line option could resolve this.

Please note that the use of Privaria solves the NAT problem if just one of the 
peers is behind a NAT firewall.

Also note that the Linux/Windows release has slipped a bit...I'm hoping it 
will be out in a month or so.

Best regards, Ed

=======================================================

Date: Wed, 29 Jan 2003 14:09:48 -0800
From: Ed Suominen <[email protected]>
Subject: [speak-freely] Potential Solution to the NAT/Firewall Problem

I am actively developing and maintaining the PRIVARIA Secure Networking 
Suite, a piece of open-source software that could solve the NAT/firewall 
issues people have been discussing here. The current release only runs 
under Windows, but an upcoming release (due out in a week or so) will 
run under both Linux and Windows.

I would be happy to include a distribution of SpeakFreely in Privaria, 
permitting users behind an outgoing-only firewall to easily *receive* 
calls as well as initiate them, if one issue can be resolved. I need to 
be able to set SpeakFreely (via the command line) to send out UDP 
packets on a different port from the one on which it receives UDP 
packets and *not* listen for incoming packets on the port set for 
sending. The following connection diagram shows how it could be set up:

[------- IP #1 ---------]       [------- IP #2 --------]
SF-A | <-7000-<  T-Server ~Net~ T-Client <-7001-< | SF-B
      | >-7001->  T-Client ~Net~ T-Server >-7000-> |

T-Server and T-Client are Zebedee tunnel apps acting as server & client.

Privaria already knows how to work the magic of setting up the tunnel 
client/server pair in each direction for UDP, TCP, or both. But the 
tunnel apps need to be able to open client and server sockets on the 
same host as their respective SpeakFreely apps, and they need separate 
transmit/receive ports to do so.

Also, because the Zebedee tunnels provide their own packet-level 
encryption, there's no need for encryption in the SpeakFreely apps that 
I would distribute. So, if someone decides to take on this project 
(should be a fairsimple additional command line option, actually) it 
would be best to compile SpeakFreely without linking in the redundant 
encryption stuff.

See http://www.privaria.org for more info. Privaria has been downloaded 
nearly 30,000 times in the past 9 months.

/--- Ed Suominen ------------------------------\
|> Registered Patent Agent
|> Independent Inventor of EE Technology
|> Author, PRIVARIA Secure Networking Suite
||  Freely available at http://www.privaria.org
\--- http://www.eepatents.com -----------------/


                      * * *

To unsubscribe from this mailing list, send E-mail containing
the word "unsubscribe" in the message body (*not* as the
Subject) to [email protected]