Re: SNMPv3 support in SNMP trap daemon software

Hi Dave,

Thanks for your response so far.

Actually, the final problem is in comparing the engine-id received in UDP
packet with that in user database.

If I send engine-id using command:

snmptrap -e *0x0102030405* -v 3 -u administrator -a MD5 -A mypassword -l
authNoPriv -d localhost 42 coldStart.0

This is stored in u_char * engine_id as engine_id[0] = 0x01
                                                        engine_id[1] = 0x02
                                                        engine_id[2] = 0x03
                                                        engine_id[3] = 0x04
                                                        engine_id[4] = 0x05

and the length is *5*.

Whereas, the engine-id we store in user database is session.engineId =
"0x0102030405" and length is 12.

Please let me know where I am going wrong. I think some conversion is
required.

Thanks in advance.

- Gaurav

On Wed, Jul 21, 2010 at 7:04 PM, Dave Shield <[email protected]>wrote:

> On 21 July 2010 14:22, Gaurav Chaturvedi <[email protected]>
> wrote:
> > The actual value contains the characters I cannot type using keyboard and
> > even can't copy (like 5 squares). So, it is very difficult to provide you
> > the same.
>
> The engine ID is a binary string, so I wouldn't expect it to be printable.
> But you should be able to print the individual byte values
>  i.e.   secEngineID[0],   secEngineID[1], etc
>
> If you print these as decimal or hex values, that would give the
> information
> we need.
>
> Also, if you include the following code in your trap receiver:
>
>               netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
>                                   NETSNMP_DS_LIB_DUMP_PACKET, 1);
>
> this would display the raw packets as are received.
> This might also give some indication as to what is happening.
>
>
>
> > Can you also tell me the procedure to implement/contribute enhancements
> in
> > net-snmp code.
>
> If you go to the project web site (www.net-snmp.org), under the heading
> "Support" there are links to the Bug and Patches trackers.   These can
> be used to log problem reports and enhancements.
>
> Dave
>

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