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Re: [nv-l] hostname changed

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] hostname changed
From: "Alan E. Hennis" <Hennis_Alan_E@cat.com>
Date: Tue, 13 Apr 2004 11:03:39 -0500
Delivery-date: Tue, 13 Apr 2004 17:58:06 +0100
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Is this device a Cisco switch. I seem to recall a bug in either IOS or
CiscoWorks that changed the hostname on a device at random.

Alan E. Hennis
Caterpillar Inc.
Systems+Process Division

                      James Shanks                                              
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                      owner-nv-l@lists. To: nv-l@lists.us.ibm.com               
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                      04/13/2004 10:51                                          
                      AM                  Subject:      Re: [nv-l] hostname 
                      Please respond to                                         

Caterpillar: Confidential Green                 Retain Until: 05/13/2004
                                                Retention Category:  G90 -

You should be very skeptical.  What evidence do your network people have
that NetView is doing this?  Any at all?

NetView itself has only two tools - ping and SNMP.  And for SNMP it does
only snmpget and snmpget_next.  Never snmpset.

You, as an operator,  could do a set from command line or the MIB Browser
of course, provided you know the write community name for the device.  But
Cisco devices usually are configured with the snmpset function disabled.
They can also be configured with a write community name unknown to anyone
but the administrator.  And this would make it impossible to change the
config without logging into the box.

Could you have someone doing this with Ciscoworks?

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group

 "TURATI, JEAN-MICHEL"                                                     
 Sent by: owner-nv-l@lists.us.ibm.com                                   To 
 04/13/2004 11:03 AM                                                    cc 
                  Please respond to                           [nv-l]       
                         nv-l                                 hostname     

Can Netview change a device's hostname on its own ? I don't mean in the
Netview database or on the map but on the device itself.
Network administrators believe Netview changes hostname in running config
some Cisco devices. I am rather doubtful.

Jean-Michel TURATI
Euro Disney SCA  Bâtiment Genie
BP 100  77777 Marne la Vallée Cedex 4
Tél: +(33). Fax: +(33).

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