Thanks, Gene. Good suggestions - I'm on the trail.

- Roger

At 01:01 PM 5/10/2002 -0500, you wrote:

>Suggestions:
>
>Be sure that the recv on the client handels the WSAEWOULDBLOCK
>status differently then other errors.
>
>Verify that the two machines are actually in the expected states, that the
>client issued the recv, and the server issued the send.
>
>Double check the network masks, you should be able to ping both ways.
>
>Verify that you are not expecting the packet boundaries to remain intact
>over a network. For example, a client might send two 10 byte packets,
>but the server might receive a single 20 byte packet. The converse can
>also happen, the client can send a 20 byte packet, but the server could
>receive this as two packets. A good thing to look for is if the client or
>server has two sends or recvs in a row. This is a flag for a common
>programming error.
>
>Gene
>
>
>
>On 10 May 2002 at 10:51, Dr. Roger Dube wrote:
>
> >
> > Let me just thicken the TCPIP soup a bit, following my previous posting...
> >
> > hostname = localhost on client
> > Client and Server on same machine
> > All two-way communication works fine.
> >
> > hostname = IP address on client,
> > Client and Server are still on the SAME machine
> > All two-way communication works fine
> >
> > hostname = IP address on client
> > Client on second machine on the LAN
> > Server still at first machine with IP address used to set
> hostname
> > on Client
> > Connection is made, conversation stops when Server tries to
> send a
> > response back to Client.
> >
> >
> > ????
> >
> > I'm only changing the physical machine on which Client is operating...
> > seems to me. Sorry, that's the experimental physicist in me trying to use
> > experiments to locate the problem.
> >
> > Again, any ideas would be most welcome.
> >
> >
> >
> >
> > ----------------------------------------------------------------------
> > Dr. Roger Dube
> > rdube_at_gate-tech.com
> > President
> > Gate Technologies International, Inc.
> > http://www.gate-tech.com
> > Executive Offices:
> > 3700 Airport Road Suite 307
> > TEL +1.561.392.7404
> > Boca Raton, FL 33431-6409
> > FAX +1.561.392.7405
> > ----------------------------------------------------------------------
> >
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----------------------------------------------------------------------
Dr. Roger Dube
rdube_at_gate-tech.com
President
Gate Technologies International, Inc.
http://www.gate-tech.com
Executive Offices:
3700 Airport Road Suite 307
TEL +1.561.392.7404
Boca Raton, FL 33431-6409
FAX +1.561.392.7405
----------------------------------------------------------------------

This E-mail message and any attachments have been scanned for viruses and
are believed to be free of any virus or other defect that might affect any
computer system into which it is received and opened. However, it is the
responsibility of the recipient to ensure that it is virus free and no
responsibility is accepted by Gate Technologies International, Inc. for any
loss or damage arising in any way from its use.

This message contains information which may be confidential and privileged.
Unless you are the addressee (or authorized to receive for the addressee),
you may not use, copy or disclose to anyone the message or any information
contained in the message. If you have received the message in error,
please advise the sender by reply e-mail to rdube_at_gate-tech.com and delete
the message.
Thank you very much.

----------------------------------------------------------------------
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To unsubscribe, send subject "unsubscribe sftalk" to listar_at_forth.com
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Received on Fri May 10 2002 - 11:09:08 PDT