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  • Subject: Re: Change telnet to another port?
  • From: "Lou Schmaus" <lschmaus@xxxxxxxx>
  • Date: Thu, 3 Feb 2000 17:34:45 -0500

Unless the router is using NAT, in which case there is only one public
IP(the router), and specific ports are passed to an internal IP behind the
router.

In this case the AS/400 would have a private(192.xxx.xxx.xxx) address, and
the router would be set up to pass external telnet requests to it's public
IP address(209.xxx.xxx.xxx) to port 23 on the AS/400.

As far as I know, there IS a way to do this. One of our customers has this
exact setup, and the ISP is able to telnet into the router to make
configuration changes, and to troubleshoot problems.


Lou Schmaus
CCA, Inc.
Jackson Twp, NJ 08527
lschmaus@link400.com




----- Original Message -----
From: Jim Langston <jlangston@conexfreight.com>
To: <MIDRANGE-L@midrange.com>
Sent: Thursday, February 03, 2000 4:29 PM
Subject: Re: Change telnet to another port?


> I'm a little confused...  The port 23 "they" (your provider) are using
> to set up your DSL line should be the IP of your DSL router (your
> default gateway) and not your AS/400, so that shouldn't cause any
> conflict at all.
>
> If your provider is blocking port 23 on your AS/400 they are doing
> something wrong, IMO.  Are you sure your telnet is working on your
> AS/400?  Have you tried "TELNET LOCALHOST" on your AS/400
> and see if you can get a log in screen?  (To get out of it, hit system
> request, then 99).
>
> This just doesn't sound right to me.
>
> Regards,
>
> Jim Langston
>
> "William A.(Tony) Corbett" wrote

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