Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: cyrus@sonne.unm.edu (Tait Cyrus)
Newsgroups: comp.sys.sun
Subject: Re: need NIT help for our netwatchtool on SunOS 4.0
Message-ID: <23742@sonne.unm.edu.pprg.unm.edu>
Date: 1 Feb 89 13:42:20 GMT
References: <8901141430.AA17911@msr.epm.ornl.gov>
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Original-Date: 24 Jan 89 19:04:02 GMT
X-Sun-Spots-Digest: Volume 7, Issue 132, message 6 of 14
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dunigan@msr.epm.ornl.gov (Tom Dunigan 576-2522) writes:
>We have converted the NIT stuff for our netwatchtool from 3.5 to 4.0, but
>the promiscuous packets returned are mostly "truncated" (just the NIT
>header stuff and about 16 bytes of the Ether packet)....

Yes.  I had this same problem and have since had it fixed by Sun.  I was
working with a VERY VERY helpfully person from Sun Software Technical
Support (Kevin Fox).  There were/are several problems with NIT under 4.0.

	1) Packet sizes were not returned in a manner like that under
           3.X ("truncated").
	2) 'read's only returned one packet
	3) lots of dropped packets

Fixes supplied me by Sun are:
	nit_if.o
	if.o
	nit_buf.o

as well as a recommendation on changing param.c increasing the NBLK's and
the NSTREAM.  

The three .o's and my "hacked" param.c are available via anonymous ftp
from pprg.unm.edu (192.31.154.1 or 129.24.13.10) and have path names:

	/pub/sun/sun_4.0_patches/if.o.Z
	/pub/sun/sun_4.0_patches/nit_buf.o.Z
	/pub/sun/sun_4.0_patches/nit_if.o.Z
	/pub/sun/sun_4.0_patches/param.c.Z

My anonymous ftp requires you to enter your e-mail address as a password.

Hope this helps.