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  • Subject: RE: SLIP Connection and KFLEX modems
  • From: Buck Calabro <mcalabro@xxxxxxxxxxxx>
  • Date: Thu, 16 Jul 1998 13:46:28 -0400
  • Organization: commsoft

On Thursday, July 16, 1998 11:45 AM, Alan Novick 
[SMTP:anovick@bellatlantic.net] wrote:
> I have been successfully handling email on the AS/400 (V3R7) via TCP/IP
> with a local internet service provider.  I am his only SLIP account, but
> it works.  Yesterday I was informed they are changing their modems to
> KFlex technology.  When I dial in to the new modem I get an active
> connection, but I cannot ping or do anything else.  Now I am having the
> usual fun run around.  The ISP never heard of an AS/400.  The IBM
> support line says it's a modem issue.  The best they can offer is a
> Consult Line contract.  Does anyone have any ideas of what to do or who
> to turn to?

I would agree that it's a modem issue.  I am *not* a communications 
genius, but I have found that many of my asynch problems go away if I 
configure my AS/400 connected modem so that it doesn't do MNP data 
compression or error correction.

I don't understand why; only that it works.  At one time, I suspected that 
the AS/400-side modem told the remote modem that it understood MNP when it 
really didn't.  Switching modems didn't change the symptoms, so I doubt 
that now.  Perhaps it has something to do with the fact that the modems 
need to grab data from the 400 comm port much faster than the rated modem 
speed due to the modem's data compression.  Like I said, I really don't 
know.  I'd LOVE to hear someone else's ideas on this...

Buck Calabro
Commsoft, Albany, NY
mailto:mcalabro@commsoft.net

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