[SNMP4J] Problem with identical user name

[Vivi Zhang]

Frank.

Thank you very much for quick response.

I see the usmUserTable is keyed by usmUser's SecurityName, and 
engineId.   So the USM.addUser() api has no problem to put two users in 
the userTable, as long as they have different engine id.

My next question is how to locate access group from vacmMib. 
In VacmMIB class, the addGroup api associates a securityName with a 
groupName.
  /    public void addGroup(int securityModel, OctetString 
securityName,  OctetString groupName, int storageType) 

/The key of the access group is (securityModel, securityName).   How to 
avoid that the second addGroup call override the entry created by the 
first addGroup call in the case I gave in my previous email:  two 
notification targets share same V3 username?

Thanks again.

Vivi

Frank Fock wrote:
> Hi Vivi,
>
> Yes, with SNMP4J you can use the same
> security/user name for different SNMPv3 entities
> (with different passphrases). In that case,
> you need to use localized keys instead of
> (clear text) passphrases.
>
> Best regards,
> Frank
>
> Vivi Zhang wrote:
>> Hi,
>>
>> I am working on an SNMP agent application using SNMP4J.
>>
>> I would like to support multiple V3 notification recipients, 
>> potentially, with identical user name.
>>
>> Here is an example of a special case,  I have two notification 
>> recipients:
>> V3 notification recipient
>>   Ip : 192.168.33.33 / 162
>>   engineId :    engineId33
>>   username :  bob
>>   Auth Protocol : MD5
>>   AuthPass :        MD5Pass
>>   Priv Protocol :  AES
>>   PrivPass:          AESPass
>>
>> V3 notification recipient
>>   Ip : 192.168.33.34 / 162
>>   engineId :    engineId34
>>   username :  bob
>>   Auth Protocol : MD5
>>   AuthPass :        MD5Pass
>>   Priv Protocol :  DES
>>   PrivPass:          DESPass
>>
>> Here since the privacy credential is different, I can not reuse same 
>> UsmUser objects.
>> I wonder if the SNMP4J support this kind of use case.
>>
>> Thanks.
>>
>> Vivi
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>