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Re: (ASCEND) NAT on PL130 -- Solid or Bleeding Edge?
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On Wed, 4 Mar 1998, Steve Camas wrote:
> Anyone seeing *real* odd stuff going on with NAT?
Recent sendmail versions make a connection back to an incoming host's
address on the auth port - 113. This is an old UNIX-based service - "is a
user on your system trying to connect me to my port 25?"
It's of not much use nowadays - large ISPs have ident turned off, because
of the extra delay it causes - if the incoming host isn't running an auth.
service on port 113, sendmail will try uselessly to connect for a little
while before giving up.
Firewalls have this problem, too - it's not specific to NAT.
- --
Josh Bailey (mailto:jbailey@ascend.com.au - http://home.ascend.com.au/~jbailey)
Regional Technical Specialist, Asia-Pacific Voice: +61-3-9656-7071
Ascend Communications, Inc (xtn. 67071) Fax: +61-3-9656-7003
Level 38, ANZ Tower, 55 Collins St Mobile: +61-417-128-921
Melbourne, Australia PGP: SEND FILE jbailey.asc
Send me mail with subject "SEND FILE help" to access my email docserver.
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