Re: The i and DHCP

There's no such thing as a "DHCP connection to the i"...

connections are done via IP address, it doesn't matter how they were
assigned, the i neither knows nor cares.

If you DHCP envioment is reassigning IP addresses while they are in
use, you have a problem. AFAIK there's nothing in the TCP/IP standard
that would allow for endpoints chnaging IPs in the middle of a
connection...good thing talk about a security issue!

Are users trying to hibernate or sleep their PC for long periods of
time with a 5250 session open? That's not going to work.

I suggest you work with getting procedures changed such that the help
desks first task is to determine if they can reach the system.
Meanwhile, simply re-assign the ticket back to them with a "no it's
not" :)

Charles

On Thu, Oct 4, 2012 at 9:42 AM, John McKee <jmmckee@xxxxxxxxxxxxxx> wrote:

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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