Re: Passing context name and Engine ID in Request

On 28/08/07, <gauravmeh2004@indiatimes.com> wrote:
> Do we need to configure "context Name" and "context Engine" somewhere
> in snmpd.conf or it is automatically done for snmpv3 by Net-SNMP

If you want to use a non-default context, then yes - this needs to be
configured.

See the FAQ entry
How can I register a MIB module in a different (SNMPv3) context?
http://www.net-snmp.org/wiki/index.php/FAQ:Coding_22

and the Wiki page
http://www.net-snmp.org/wiki/index.php/Snmpd_proxy

for details.



> I have added following lines in snmpd.conf for authentication :
> defSecurityName abc
> defAuthType MD5
> defSecurityLevel authPriv
> defAuthPassphrase mysecretpass
> defPrivType DES
> defPrivPassphrase mypassphrase
> defVersion 3
> defContextName context

Those lines belong in the file 'snmp.conf'
They are used for *client* side configuration, not the agent.



> and it works fine through command line when i give following :
>
> snmpwalk -v3 -u abc -l authPriv -a MD5 -A mysecretpass -x DES
> -X mypassphrase localhost

Which is supplying most of these values explicitly, and does *not*
specify a context. So you'll be using the default (blank) context.


> but through a MIB Browser(Mibbel GUI) it ask for "context Name" and "Context Engine" ;
> -- if i keep it empty i get a response

Exactly as above


> -- If i enter something(context) i get a response : Timeout

Because you haven't configured anything for this context.



> do anything to be done in access specifiers in snmpd.conf
>
> I had searched a lot on this .. but was unable to find it
> Could u please help in this

Bottom line - why are you trying to use contexts anyway?
It's not necessary in most cases.

Dave

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