VPN

Craig White plug-discuss@lists.PLUG.phoenix.az.us
Sun, 06 Jan 2002 16:08:36 -0700


Charlie Bullen wrote:
> 
> I have been working with 3 e-smith servers, one at home and 2 at
> different businesses. I have PPTP  and SSH activated on both servers.
> One has an SDSL connection using ATT and both services work fine all
> the time. The other has an ADSL connection using Qwest and both
> services work only intermittently. Both installations are the same, by
> the way, one hasbeen running over 3 monthsnow wthout the need to
> reboot.
> 
> I think that qwest must have ports 22 and 1723 turned off. Any other
> ides why I would behaving these roblems?
> 
----
I have never seen Qwest block any ports on DSL but I did notice a long
time ago, using a dialup account, that AT&T seemed to hamper (but not
block) VPN ports...I don't believe that PPTP uses 22 but it uses TCP
1723 & protocol 47 (GRE), possibly TCP port 500. It seemed that they put
it on such a low QOS that it made it worthless. Check with your
information on PPTP.

BTW - PPTP is reportedly broken and relatively easy to decipher - YMMV -
you probably should consider using their newer L2PTP (or whatever the
designation is) or more preferably, IPSEC.

Craig