Looking for a network manager program

[Jeffrey Mogul]

In article <1991May15.022624.21739 at menudo.uh.edu> acsiv at menudo.uh.edu (Duck aka D. Harper) writes:
>  I am looking for software ( freeware, shareware, payware ) packages
>which will do the following:
>	Monitor all net tracfic in a LAN, across as many protocals as
>		posible ( including DECNet )
>	Ability to filter on a single protocal, packet, host for reporting
>	Generate reports on net usage

Try the NNstat package (the important program is called "statspy"),
available from ISI by anonymous FTP:
	venera.isi.edu:/pub/NNStat.tar.Z
The latest release, 3.01, runs on Ultrix (Ultrix 4.0 or later, and
remember to obtain the "patched" if_ln.o from the Customer Support
Center if you are running Ultrix 4.1).

>Wanted, but not needed yet:
>	grab & look at a single packet

"tcpdump" is the standard answer to this.  You can pick up the sources
from
	gatekeeper.dec.com:/pub/net/tcpdump-2.0.tar.Z
It also requires Ultrix 4.0 or later (and with Ultrix 4.1 requires
the patched if_ln.o).

For all such promiscuous mode applications on Ultrix, you will need
to rebuild your kernel to include the "packetfilter" option, and
you will need to use "pfconfig" to authorize use of promiscuous mode.

Both tcpdump and NNStat basically understand IP; if you want to debug
DECnet problems, they are less helpful.  (I've been thinking about
hacking on tcpdump to handle DECnet packets, but this is trickier
than it seems.)

>  It would be nice if it was not dependent on any given platform ( I
>know, DECNet is only for VMS & ULTRIX ), as my manager uses a NeXT &
>VMS, while I use ULTRIX.
>  Any help would be appreciated.  I will be more than happy to post/mail
>my findings after I get some!

tcpdump and NNStat run on Ultrix, SunOs, and certain flavors of BSD.
I don't know if either runs on VMS or NeXT.

-Jeff