Great Circle Associates Firewalls
(October 1997)
 

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Subject: Re: snmp broadcasts
From: dmurphy @ cwa . com (Dan Murphy x286)
Date: Tue, 30 Sep 1997 12:06:03 -0700
To: jsdy @ cospo . osis . gov, trott @ remus . rutgers . edu
Cc: Firewalls @ GreatCircle . COM

> 
> On Mon, 22 Sep 1997, Joseph S. D. Yao wrote:
> 
> > As your subject line notes, 161 == SNMP - Simple Network Management
> > Protocol.  These machines may be trying to update their Network
> > Neighbourhoods?
> 
> Is it generally safe to ignore snmp broadcast packets on your internal
> network?
> 
> > As for why some and not others ... are they all the same version of MS
> > Winlose 95?
> 
> Probably not...time to do an inventory...
> 

The source of the SNMP PDUs is likely an HP printer driver installed under
Win95 that is attempting to auto-discover reachable HP network printers by
broadcasting SNMP 'get' requests and listening for responses.

Check in the Win95 Printer Manager for HP printers installed as network
resources...

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| Dan Murphy, CWA Communication Products   | email: dmurphy @
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