Re: EngineID

Hi Dave,

As in case of net-snmp EngineId generated based on random
number and current time.

Hence every time system will reboot both the above DATA will change.
Hence EngineId will change ?

Am I right ?

/*

* Here we've desigend our own ENGINEID that is not based on

* an address which may change and may even become
conflicting

* in the future like most of the default v3 engineID types

* suffer from.

*

* Ours is built from 2 fairly random elements: a random
number and

* the current time in seconds. This method suffers from
boxes

* that may not have a correct clock setting and random
number

* seed at startup, but few OSes should have that problem.

*/

Rgds,

Sanjay

Dave Shield wrote:

On 29 January 2010 06:22, sanjaykumar <[email protected]> wrote:

Now as every time device reboot EngineID is Changing, Hence the engine
Time reset to "zero[0]" and Engine Boot to "1".
Does it correct that EngineID should also Change ?
Or it should change only in case of Power OFF ?

The engine ID uniquely identifies an SNMP engine, and
should be persistent - not only across reboots, but also
when power is removed and restored.

>From the definition of the snmpEngineID MIB object

This information SHOULD be stored in non-volatile
storage so that it remains constant across
re-initializations of the SNMP engine.

(RFC3411 - p49)

Dave

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