Question

What is the error message that occurs when the manager sends Set_Request to a read-only object? Also, list out any three error messages in SNMP v1.

Answer 1

The error-status and error-index fields should indicate the first variable that was unable to be retrieved due the error indicated by error-status. To determine that any of the remaining variables are also unable to be retrieved, the indicated error needs to be corrected (e.g. variable removed from the request, OID corrected, etc.) and the request re-sent. At that point, the error-status and error-index of the response would indicate the next variable with an error (if any).

SNMP_ERRORSTATUS_READONLY

The requested SNMP operation tried to change a variable that was not allowed to change, according to the community profile of the variable.

list out any three error messages in SNMP v1 .

1) In SNMPv1 the community name was passed along with the data packet in clear text. This allowed anyone to ease drop and learn the SNMP community
name or password.

2)traps had a different format than all of the other PDUs.

3)The main problems of the version 1
are the authentication of the message source, protecting these message from disclosure
and placing access controls on the Management Interface Base (MIB- this is a logical
database made up of the configuration, status and statistical information stored at a
device) database.

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