🚀 go-pugleaf

I wonder if anyone might be able to shed some light on a strange
problem I'm seeing.

I've got about 100 Macs (variety of models) and a few PCs on my local
network.  The local network consists of 3 zones, 1 ethernet and 2
LocalTalk.  The ethernet is used for a few UNIX workstations, Mac mail
and file servers, and as a local backbone for the 2 LocalTalk
segments.  The LocalTalk segments each consist of 4 interconnected
Farallon StarController hubs, and a Cayman GatorBox CS gateway.  The
ethernet segment is connected through a cisco router and 57Kb
dedicated line to the corporate network.

In one of the 2 local LocalTalk segments I've got an SE/30 with 8 MB
RAM running 7.0.1 + Tune-up 1.1.1, KeyServer 3.0.5 (50 clients), and
Meeting Maker Server 1.5.  This machine is a dedicated
KeyServer/Meeting Maker host, and I've enabled file sharing so that I
can occasionally access the disk from remote for administrative
purposes.

I recently began using TrafficWatch II 1.0A to analyze network
utilization, and I noticed that this SE/30 was sending a substantial
number of packets to a nonexistent device in the same zone.  I can't
resolve the recipient address to any device.  This mysterious device
receives packets only from the SE/30, and never sends packets to the
SE/30, or any other device.

Upon closer inspection (using LocalPeek), I noticed that the packets
being sent by the SE/30 to the mystery device consist entirely of
lapRTS.

Does anyone have any insight into this strange anomaly?  Please e-mail
me and I'll summarize in this newsgroup.

--
Chriss G. Koch, Macintosh Network Administrator <cgk@mbunix.mitre.org>
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