Dynamic IP addresses via DHCP make perfect sense
for "client" devices that "come and go", e.g. end user
desktops, laptops, etc. No one else needs to know
their address until they make contact with a request.
However, "server" devices that are expected to be
there "all the time" require static IP addresses so that
clients know where they are.
Using a URL is analogous to cataloging a dataset. It
enables one to get there by name alone, without needing
to know the address, volser, etc.
From: Bill Dodge <[EMAIL PROTECTED]>
Reply-To: IBM Mainframe Discussion List <[email protected]>
To: [email protected]
Subject: Re: Print Distribution and IP connected Devices
Date: Thu, 23 Aug 2007 08:28:37 -0400
The best way (IMHO) is for the network group to establish a pool of static
addresses for printers and to hard assign those addresses to the printers.
Then to take it a step further to give them DNS entries so the IPADDR can
be changed if necessary but your print distribution doesn't need to be
changed. The problem with DHCP is that you need to wait for the printer to
attach to the network and then go find out what IPADDR was assigned. Then
you have to go back and establish that address for the right printer in
your distribution package. The real FUBAR happens if DHCP leases expire
and the netwwork goes down (like that never happens)or the printer goes
offline for an extended period of time (What? Hardware breaks? Go
figure.). Now as the printers attach to the network they will all
undoubtedly have new IP adrresses - just the nature of the beast.
> Since I am not involved (unfortunately) with either the IP or Network
part
> of this move, I am not as familiar with this problem as I would like.
>
> However, I believe that Hal has identified my issue. They use DHCP to
> assign IP addresses.
>
> So what would be a better way.
>
> I am not familiar with why you would use DHCP vs. some other method.
>
> Is there a benefit or is there a better way.
>
> Thanks all for the help. It is starting to look murky instead of just
dark.
>
> Lizette
>
>
> > Ouch! That sounds like the network group expects to use DHCP to assign
> > IP addresses. And you (CA, actually) need static (pre assigned)
> > addresses.
> >
> > Worse, the printer could be unexpectedly assigned a new IP address at
> > any time.
--
Bill Dodge
email: [EMAIL PROTECTED]
Phone: (703)627-2455
"If you don't know where you are going, any road will take you there."
Lewis Carroll
"If you don't know where you are, a map won't help" Unknown
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