RE: SNMPD not returning "noAccess" for snmpset on an OID which is notpresent in the view.

Hi All,
 
I have raised a bug in Net-snmp bug database for the behavior mentioned
in the below mail.  
Following is the link to the bug.
 
http://sourceforge.net/tracker/index.php?func=detail
<http://sourceforge.net/tracker/index.php?func=detail&aid=1589813&group_
id=12694&atid=112694> &aid=1589813&group_id=12694&atid=112694
 
 
Regards,
Suresh.
 

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
Pamidipati Suresh-G20238
Sent: Tuesday, October 31, 2006 3:12 PM
To: [email protected]
Subject: SNMPD not returning "noAccess" for snmpset on an OID which is
notpresent in the view.


Hi All,
 
When we gave a SNMPV3 set request with a user name configured in the
snmpd.conf, on an OID which is not present in the view configured for
that user, we got the response as notWritable. As per my understanding
of following text in RFC 1905, response should be noAccess.
 
If the variable binding's name specifies an existing or nonexistent
variable to which this request is/would be denied access
because it is/would not be in the appropriate MIB view, then the
value of the Response-PDU's error-status field is set to
'noAccess', and the value of its error-index field is set to the
index of the failed variable binding.
 
I created user by giving the following commands in snmpd.conf file.
 
rwuser user1 auth 1.3.6.1.4.1.18568
createUser user1 MD5 user1234 DES
 
I gave the following snmpset request on an object which is not present
in the view configured for user "user1"
snmpset -v3 -u "user1" -n "" -l authNoPriv -a MD5 -A "user1234" -r 0 -t
10 localhost 1.3.6.1.4.1.161.10.1.1.9.10.2.1.1.1.192.168.1.1 s "hello"
 
The response received is 
Error in packet.
Reason: notWritable (That object does not support modification)

As per RFC 1905, response should be noAccess instead of notWritable, as
the given OID is not present in the view accessible for "user1".
Please let me know if this is a bug in Net-snmp code or my understanding
is incorrect.
 
Regards,
Suresh

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