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From: dorner@pequod.cso.uiuc.edu (Steve Dorner)
Newsgroups: comp.sys.mac.comm
Subject: Re: Dynamically assigning IP numbers on Ethernet?
Message-ID: <1991May29.132419.6021@ux1.cso.uiuc.edu>
Date: 29 May 91 13:24:19 GMT
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Organization: University of Illinois at U-C
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>2)  find a way to dynamically assign IP numbers on Ethernet.
>
>Now I know the Cayman GatorBox does this on the LocalTalk side, but it
>does not seem to able to do this on the Ethernet side.

A while ago this was pointed out as one of the very few features of the
FastPath not duplicated on the Gatorbox; the FastPath will dynamically
assign IP address on EtherNet.  (Or so people said.)  I seem to recall
that Cayman was going to add the feature, but I might be wrong.  If you
have a gatorbox, you might drop support@cayman.com a line; they'll know
if there's anything you can do.

IF you have a particularly tolerant IP gateway (I mean IP gateway now, not
DDP-IP gateway), you might try the "Dynamic" option.  My understanding is
that MacTCP will then find an IP number for which no one responds to an ARP,
and use that.

You'll need a tolerant gateway in case an IP address previously in use on
one Mac gets reused on another; many gateways will not tolerate such be-
havior, and persist in the belief that the first mac is still the right
one for the IP address.
--
Steve Dorner, U of Illinois Computing Services Office
Internet: s-dorner@uiuc.edu  UUCP: uunet!uiucuxc!uiuc.edu!s-dorner