Re: Releasing IP Address

From: wyerd (wyerdl@juno.com)
Date: 06/28/02 

From: "wyerd" <wyerdl@juno.com>
Date: Fri, 28 Jun 2002 04:07:57 -0700

Ah, to be in the corporate world. But unfortunately this
is county politics. Each agency has its own elected
official and IS dept. The Commission as the distributor
of money mandated one central network. Elected officials
protested and the compromise was four independent networks
each connected to my hub, but individually managed. I
have all IP addresses posted on our support site so each
department can check such things, but arrogance runs
high. I do not know how an IBM printer can take priority
over a firewall at the server, but when they assigned it
the same IP, it dominated. I can direct connect to my
firewall and change the IP, but that doesn't resolve my
root problem of controlling the assignment of IP addresses
by other agencies. Ideally what I need is a way to ban a
MAC address from accessing with any IP address.
>-----Original Message-----
>Your company needs a central department to manage
distributing IP addresses,
>or at least a central database for people to go to
reserve IP addresses and
>check for their availability. This is just standard
practice and common
>sense, and this sort of problem will probably happen
again unless something
>like this is put into place.
>
>I'm not sure about IBM printers, but most every device I
can think of
>working with does not request DHCP IP addresses if it has
a static IP
>address already assigned. The device needs to request a
DHCP address before
>it can get one. I would think that this can only be
corrected by a setting
>on the IBM printer, possibly by getting help from someone
knowledgeable in
>this type of printer. I'm thinking that possibly there
is more than one
>place to set more than one IP address, like perhaps a
second IP address for
>management?
>
>This seems a little silly, but you could put a spare or
inexpensive router
>or firewall in front of the printer and block parts or
all of the DHCP
>communication [such as the initial broadcast, or perhaps
UDP 67 and 68] from
>the printer. [A $70 Netgear or Linksys BEFSR41 might be
able to do this.]
>
>"wyerd" <wyerdl@juno.com> wrote in message
>news:1119c01c21e45$d9f03510$37ef2ecf@TKMSFTNGXA13...
>> I work in a politically polarized environment. This
>> creates situation where another department assigns an IP
>> address to a device that I already have assigned (in
this
>> case to my firewall). I am not allowed to cross
political
>> lines to correct this. Is there a way to block the
device
>> and force it to release the IP?
>
>
>.
>