CURRENT_MEETING_REPORT_


Reported by Ralph Droms/Bucknell University

The meeting began with a report from Russ Hobby describing address
allocation in PPP. The DHC WG concluded that there's not much overlap
between PPP and DHC. Next, Mark Rosenstein reviewed the Gateway
Discovery WG meeting.  The DHC WG decided that a DHC mechanism could
pass an initial gateway without interfering with gateway discovery, with
the proviso that any information from a gateway discovery protocol
should override any DHC gateway information.

The WG agreed to concentrate on the following configuration information:


   o IP address
   o Dynamic address allocation bounds
   o Subnet mask
   o Network broadcast address
   o Initial gateway
   o Subnet MTU

The WG further agreed to use bootp as a strawman protocol, with
extensions for dynamic address allocation.  The choice of bootp is
intended to maximize compatibility with existing bootp clients and
routers.

There are several specific issues that must be resolved if bootp is used
as the DHC protocol:

   o Is the bootp 576 byte packet limit a problem
   o How to select and negotiate dynamically allocated IP addresses
   o How should a host proceed when no bootp servers respond
   o How can a host detect when its environment has changed and 'cached
     hints' (e.g., a locally recorded IP address) are no longer valid

The WG agreed *not* to consider:


   o Dynamic DNS registration (we refer the problem to the DNS WG)
   o Higher level configuration information; e.g., network file servers,
     boot image name
   o Authentication (we refer the problem to the Authentication WG)


What's next:


   o The WG would like to have a design complete by 9/1/90
   o The WG should develop a detailed strawman protocol based on bootp
     by next meeting.

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ATTENDEES

    Basch, Richard           probe@mit.edu
    Bowers, Karen L.         kbowers@nri.reston.va.us
    Broersma, Ron            ron@nosc.mil
    Hobby, Russ              rdhobby@ucdavis.edu
    Jacoby, Ronald           rj@sgi.com
    Johnson, Brad            bradcj@osf.org
    Lauck, Tony              lauck@dsmail.dec.com
    Mamakos, Louis A.        louie@trantor.umd.edu
    McLaughlin, Leo J.       ljm@twg.com
    Minshall, Greg           minshall@kinetics.kinetics.com
    Petry, Michael           petry@trantor.umd.edu
    Rosenstein, Mark         mar@athena.mit.edu
    Roubicek, Karen          roubicek@nnsc.nsf.net
    Seaver, Tim              tas@mcnc.org
    Sklower, Keith L.        sklower@okeeffe.berkeley.edu
    Stahl, Mary              stahl@nisc.sri.com
    Throop, Dean             throop@dg-rtp.dg.com
    VanBokkelen, James       jbvb@ftp.com
    Veizades, John           veizades@apple.com
    Yuan, Aileen             aileen@gateway.mitre.org



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