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From: nerd@percival.rain.com (Michael Galassi)
Newsgroups: comp.sys.next
Subject: Re: Experiences with networking on the NeXT
Message-ID: <1991May5.054422.1753@percy.rain.com>
Date: 5 May 91 05:44:22 GMT
References: <1991May4.051554.27839@cbnewse.att.com>
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tyc@cbnewse.att.com (felix.a.lugo) writes:
>	The following is the output generated from "ifconfig en0":

>en0: flags=23<UP,BROADCAST,NOTRAILERS>
>        inet 135.1.156.2 netmask ffffff00 broadcast 135.1.255.255

>	My subnet router is set to IP 135.1.156.254 (which is correct).

The broadcast address must set all 1's in the positions that would be
masked out by the netmask anded with the ip address.
broadcast = (ip_address & netmask) | ~netmask
In your case,
broadcast = (135.1.158.2 & 255.255.255.0) | ~255.255.255.0
          =  135.1.158.0 | 0.0.0.255
          =  135.1.158.255

This needs to be changed in the /private/etc/hostconfig file.  Under
the 2.0 version of the OS these are the pertinent lines.

INETADDR=135.1.156.2
IPNETMASK=255.255.255.0
IPBROADCAST=135.1.156.255

Make the same change on your other next as well, I assume it is also
mis-configured.  NeXT does not do well with subnet masks using their
cute tools, you have to go and brute-force edit the standard files
rather often to make things work right in a subneted environment.

Hope this helps.  The only thing I don't understand is why this worked
between two nexts.  If I can help further mail me.

-michael
-- 
Michael Galassi				| nerd@percival.rain.com
MS-DOS:  The ultimate PC virus.		| ...!tektronix!percy!nerd