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Wireless laptops exist here. However, most of the computers I have
dealt with are still wired. Our network person has decreed that all
computers be left on at all times. What I could guess is that a new
DHCP lease could get assigned at 8:20 AM, while somebody was connected
to the i and working well from 7:50AM. Suddenly, a dead connection.
This morning alone, there have been three. User can't reconnect, as
that session is "in use" all because the IP address changed. End the
orphan job, potentially reset the device, and all is well.

Guess what I am wondering is how other systems handle this so that
users are unaware of the IP address switch, and if the i has a way to
deal with this. We are terminal at v5r4.

John McKee

On Thu, Oct 4, 2012 at 8:57 AM, <rob@xxxxxxxxx> wrote:
All of our clients use DHCP. I did
WRKACTJOB SBS(QINTER) SEQ(*NUMBER)

Here's a couple of jobs
Entered system:
Date . . . . . . . . . . . . . . . . . . : 09/22/12
Time . . . . . . . . . . . . . . . . . . : 03:39:00
Entered system:
Date . . . . . . . . . . . . . . . . . . : 09/28/12
Time . . . . . . . . . . . . . . . . . . : 07:49:02
Entered system:
Date . . . . . . . . . . . . . . . . . . : 10/01/12
Time . . . . . . . . . . . . . . . . . . : 05:41:15

You sure they aren't using wireless laptops and roaming through dead spots
or something?



Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: John McKee <jmmckee@xxxxxxxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date: 10/04/2012 09:42 AM
Subject: The i and DHCP
Sent by: midrange-l-bounces@xxxxxxxxxxxx



I haven't checked the countdown clock this morning. Probably 28 days
left. So, this isn't critical.

Corporate mandated switching from static addressing to DHCP. We get
random calls where a 5250 session cannot sign on or just quits
working. The corporate help desk has decided that if they receive two
such calls, then the i just HAS to be down - despite the fact that we
have several hundred attached and functioning workstations.

Anyway, here is my question: If a DHCP connection is established with
the i, and then the lease on the workstation IP address expires, and a
different IP address is subsequently assigned to the workstation
(sorry for the wordiness). is there any way that the i can determine
that address for that session has changed and do something about it?

I know the device description has the IP in it when a connection is
established. But, what happens when that address changes?


BTW, when corporate office sends out a bogus "system down" task, they
are done - task has been assigned. We get the heat for taking "too
long" to resolve the issue.

John McKee
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