Ascend Archive
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RE: (ASCEND) Slow e-mail send when using NAT on P75

But a WIN/MAC will give CONNECTION REFUSED very quickly, but if the
NAT box is routing the port to the bit bucket, you get the
30 second (or Timeout.Ident time) wait.

Larry Rosenman

--
Larry Rosenman, Sr. System Administrator, CyberRamp Internet Services
E-Mail: ler@cyberramp.net, http://www.cyberramp.net
Voice: (214) 343-3333/(817) 461-8484 (Metro)/Fax: (214) 343-3727
Technical Support: (214) 340-2020/(817) 226-2020 (Metro)
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-----Original Message-----
From: owner-ascend-users@max.bungi.com
[mailto:owner-ascend-users@max.bungi.com]On Behalf Of Rob Myers
Sent: Monday, August 10, 1998 9:12 AM
To: ascend-users@max.bungi.com
Subject: Re: (ASCEND) Slow e-mail send when using NAT on P75


Both good suggestions, but as far as I know, Windows/Mac boxes don't have
an auth/ident server monitoring port 113, so it would time out anyway,
even if you were doing straight IP routing...

The reason I say this is that we had many customers complaining about slow
response times to send e-mail and when we turned this feature off in
Sendmail everything was back to its normal, speedy self.

If it were a reverse-lookup problem you would get some sort of error from
the SMTP server about that, rather than a timeout.

-Rob-

> The mail server you're delivering the mail to is trying to connect
> to your auth/ident port at 113 (to no avail). After a while it will
> time out and accept the mail anyway.
> A simple solution is to create a static (NAT) mapping on your
> pipeline that points to port 113 on the machine inside your LAN that
> is trying to send the mail.

[...]

> Make sure that the single IP you are using has a name associatied with its
> reverse-lookup.


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