Thanks Vaughn. After climbing through three layers of support at Mindspring,
I found out that they are filtering port 25 to anything but their mail
servers. Trying to prevent spam from originating on their network. I am
shopping for a new ISP...
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Vaughn Thurman
Sent: Friday, July 23, 1999 11:36 PM
To: [EMAIL PROTECTED]
Subject: Re: [IMail Forum] FW: Dial-Up Access Problem Cont.
Next time you talk to the router specialist ask him to let you connect the
way he is... dial in to his Net and then telnet to your box. If it does not
work he is full of BBBBSSSSS. It happens... If he is right and the
Mindspring connection still does not work, make sure the router is not set
up to block address ranges from certain ports as that could (in Cisco's old
IOS) cause intermit screw ups. Otherwise just dump Mindspring as they use
GTE for almost all of their dial up the Mspring tech wouldn't know if he was
telling you the truth or not.
-V
----- Original Message -----
From: Brian Politis <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 22, 1999 12:43 PM
Subject: [IMail Forum] FW: Dial-Up Access Problem Cont.
>
>
> Our internet connection is a Fractional T1 with a 368K port speed. The
> server is currently behind a cisco2600 router running Cisco's firewall
> software. The router is also acting as a proxy server and translating my
> true internet address to our internal 192.168.x.x network. I do not have
> great experience with the router, but am told that it is configured
> correctly to allow the following ports from any IP address through to the
> server POP3 (110), SMTP(25), 8383 (Imail's Web Interface).
>
> All these ports seem to work correctly most of the time, occassionally a
> dial-up client (it almost always seems to be a Mindspring user) is not
able
> to access a given sub-set of ports. For instance this morning the
> difficulty was on SMTP. I was finally able to duplicate the problem and
on
> my workstation. After connecting to Mindspring I was not able to open an
> SMTP session with the server Either through Outlook, or telnetting to
port
> 25. In both Outlook and Telnet the error message was "Server not found".
I
> could however get through on all the other ports.
>
> While this was happening I contacted our Router specialist and he was able
> to telnet to the server on port 25 (through a different ISP over his T1)
> directly into the router, his connection was reliable, consistent, and
> repeatable. This morning I was never able to get a connection on port 25
> (all other ports responded just fine), the router configuration has not
> changed and it worked perfectly on Tuesday through Mindspring when I tried
> to re-create the issue.
>
> I used Windows95's netstat command to see what state my connection was
> getting to, and it never went past a syn-sent. It definetly appeared that
> the server was not responding or at least not receiving the request.
>
> Does anyone have any ideas on where this problem might lie? Do I need to
> open up additional ports to the server? Could it be something with
> Mindspring (perhaps they are filtering my packets)? Mindspring claims
they
> are providing a true IP connection and that nothing funny should be
> happening in their network, but the I really don't know if the tech I
spoke
> to on the phone is a reliable source.
>
> Any help would be appreciated, at this point I am not sure what to try
next.
>
> Please visit http://www.ipswitch.com/support/mailing-lists.html
> to be removed from this list.
>
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