Re: How many folks are actually using dynamic IP address

Charles Ragan <ragan@ins.com> Mon, 07 October 1996 17:43 UTC

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Date: Mon, 7 Oct 1996 13:36:41 -0400
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From: Charles Ragan <ragan@ins.com>
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Subject: Re: How many folks are actually using dynamic IP address
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QIP and Cisco's new DHCP/DNS Manager software support dynamic DNS updates
from DHCP databases.  Is anyone deploying these packages in this capacity?
(the Cisco product available sometime in Oct 96).

Charles
At 11:02 AM 10/7/96 -0400, Michael J. Lewis wrote:
>At Chevron, Our goal is to utilize dynamic addressing but because of the
>missing 
>DNS interface, we've amended that goal in the interim to utilize static
>or DHCP
>manual addressing for servers.  This policy has generally worked well
>particularly
>at smaller sites (100 or fewer devices).  The larger sites have had a
>bit more
>difficulty but these problems are primarily a combination of dynamic
>addressing
>and server implementation rather than dynamic addressing itself.
>
>We do recognize that dynamic addressing currently is a two-edged sword
>and have
>undertaken great efforts to document potential problems.  We've given
>several
>presentations internally to try and educate local support about the
>potential
>problems.  The absence of the dynamic DNS also is requiring us to
>maintain local
>distribution/support of IP addresses rather than have this function
>centralized
>as part of LAN support.  
>
>Anyone wishing further details on our implementation can Email me
>directly.
>
>Mark Boolootian wrote:
>> 
>> I'm curious as to how many sites out there are actually assigning IP
addresses
>> dynamically.  From some of the comments I've seen on the ISC DHCP server
>> mailing list, it sounds as if many sites are avoiding dynamic assignment, and
>> opting for nailed up addresses handed out via DHCP.
>> 
>> Perhaps this is done for accountability purposes?  Or perhaps this is a
>> result of the problematic interactions between DNS and DHCP?
>> 
>> Have those of you running with dynamic addressing encountered any especially
>> pernicious problems?  Anyone run into the problem of exhausting the available
>> pool of dynamic addresses - how did you discover this problem?  Just allowing
>> people to plug in and turn on would seem to necessitate some kind of monitor
>> to watch for this sort of thing.
>> 
>> Any and all comments in relation to this would be greatly appreciated.
>> 
>> regards,
>> mb
>
>
Charles_Ragan@ins.com
Sr. Network Systems Consultant
International Network Services