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Re: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps
From: Oliver Bruchhaeuser <oliver.bruchhaeuser@de.ibm.com>
Date: Wed, 14 Apr 2004 08:03:15 +0200
Delivery-date: Wed, 14 Apr 2004 07:13:10 +0100
Envelope-to: nv-l-archive@lists.skills-1st.co.uk
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Sender: owner-nv-l@lists.us.ibm.com

independent of the device type you should be always able to:
snmpset <device> snmp.snmpEnableAuthenTraps.0 integer 2

Oliver


lesdickert@att.net
Sent by: owner-nv-l@lists.us.ibm.com

13.04.2004 22:23
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        Subject:        Re: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps

       


Here is what I think you need to do to keep
an AIX server from sending authentication failure
traps:

Look in /etc/snmpd.conf for a line that has:

trap  public   <your netview server name>  1.2.3   fe  

What you are looking for is a 'trap' line that has the
name of your NetView server on it.  The last parameter
('fe' in this example) determines what traps snmpd will
send to that server.  See below for how to encode/decode
this hex value.  You want to set the high order bit of the
low order nibble to '0' (authentication failure traps).  
The only values the second hex character can have that would
cause sending authentication failure traps are a, c, and e.
So change this value as follows:

  a -> 2
  c -> 4
  e -> 6

and that should do it.  Will need to stop and start the snmpd
daemon, or better still, reboot the sending server.

Here are the gory details from the snmpd.conf file about this
setting.

Les Dickert
Anthem BC/BS
Richmond, VA

############################################################################
# 4. If your site has a management station that listens for traps, fill-in
#    the information for the trap destination as follows:
#
#       trap  <community>  <a.b.c.d>   <view name>  <trap mask>
#
#    where <community> is the community name that will be encoded in the
#    trap packet and <a.b.c.d> is the hostname or IP address in dotted
#    notation of the host where a trap monitor is listening on UDP port 162.
#    The <view name> is a unique object identifier in dotted notation. View
#    name is not implemented for traps.  The snmpd agent only checks
#    the view name format and duplication.  The trap mask is in hexidecimal
#    format.  The bits from left to right stand for coldStart trap, warmStart
#    trap, linkDown trap, linkUp trap, authenticationFailure trap,
#    egpNeighborLoss trap, and enterpriseSpecific trap.  The right most bit
#    does not have any meaning.  The value "1" will enable the corresponding
#    trap to be sent. Otherwise, the trap is blocked.
#       ex.     fe      block no traps (1111 1110)
#               7e      block coldStart trap (0111 1110)
#               be      block warmStart trap (1011 1110)
#               3e      block coldStart trap and warmStart trap (0011 1110)
#
#################################################################################





----- Message from Michael Webb <mlwebb@us.ibm.com> on Tue, 13 Apr 2004 19:34:49 +0000 -----
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps

Someone once told me to do the following:

Change:

trap            public         127.0.0.1       1.2.3   fe      # loopback

To:
trap            public         127.0.0.1       1.2.3   f6      # loopback

Where the fe becomes f6.

Regards,

Michael Webb, IBM Tivoli
Q1CA Distributed NetView / ITSA SVT
Email: mlwebb@us.ibm.com
Ext: (919) 224-1410, T/L: 687-1410

Inactive hide details for "Christopher J Petrina" <cjp8@meadwestvaco.com>"Christopher J Petrina" <cjp8@meadwestvaco.com>


"Christopher J Petrina" <cjp8@meadwestvaco.com>
Sent by: owner-nv-l@lists.us.ibm.com

04/13/2004 03:21 PM
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To: nv-l@lists.us.ibm.com
cc:
Subject: Re: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps




One way to do it is to Set the event in the event configuration window to DO NOT LOG or DISPLAY.

-Chris Petrina


"Bursik, Scott {PBSG}" <Scott.Bursik@pbsg.com>
Sent by: owner-nv-l@lists.us.ibm.com

04/13/2004 03:04 PM
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To: "'Nv-L (nv-l@lists.us.ibm.com)'" <nv-l@lists.us.ibm.com>

cc:
Subject: [nv-l] snmpd.conf setting to restrict Authentication Failure Traps




NetView 7.1.3 AIX 4.3.3

How would you configure the AIX snmpagent to NOT send the Authentication
Failure traps? I want the other traps, just not those.

Thank You,

Scott Bursik


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