Usually engined id will be supplied by user through our GUI. But for
testing this issue, taken engine id from following two devices
ip :172.21.139.65
User name: sowra
Engine ID: 8000000903000019E765D390
storage-type: nonvolatile active
Authentication Protocol: SHA
Privacy Protocol: AES128
ip :172.21.139.105
User name: sowra
Engine ID: 8000000903000026984FEE81
storage-type: nonvolatile active
Authentication Protocol: MD5
Privacy Protocol: AES128
and adding user to USM using following method (run as threads),
snmp.getUSM().addLocalizedUser(engineID.getBytes(), new
OctetString(securityName), authenticationProtocol,
SecurityProtocols.getInstance().passwordToKey(authenticationProtocol,
authenticationPwd, engineID.getBytes()),privacyProtocol,
SecurityProtocols.getInstance().passwordToKey(privacyProtocol,
authenticationProtocol, privacyPwd, engineID.getBytes()));
But getting following exception
org.snmp4j.MessageException: Message processing model 3 returned error:
Unknown security name
at
org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:501)
at org.snmp4j.Snmp.sendMessage(Snmp.java:1004)
at org.snmp4j.Snmp.send(Snmp.java:898)
at org.snmp4j.Snmp.send(Snmp.java:878)
at org.snmp4j.Snmp.send(Snmp.java:843)
at
com.cisco.sc.alc.service.SNMPv3Collector.doGet1(SNMPv3Collector.java:256)
at com.cisco.sc.alc.service.TestThread.run(TestThread.java:36)
If I use following method, always one device get successful, other all
devices getting time out.
snmp.getUSM().addUser(new OctetString(securityName),new UsmUser(new
OctetString(securityName),authenticationProtocol,authenticationPwd,privacyP
rotocol,privacyPwd));
Can you pls share workable code for the scenario devices having same
security name that will be executed on threads at a time. Also is it
mandatory to get engineid if user name is same for all devices? If so why?
Thanks
-Senthil
On 4/18/15, 2:04 AM, "Frank Fock" <[email protected]> wrote:
>Hi Senthil,
>
>How do you get/determine the engine ID in your functions doGet1 parameter
>list?
>It must be different for those two devices and it has to be their
>authoritative engine ID.
>
>Best regards,
>Frank
>
>
>
>> On 17 Apr 2015, at 23:24, Senthil Murugan Ramalingam -X (seramali -
>>UNISH CORPORATION at Cisco) <[email protected]> wrote:
>>
>> Hi Frank,
>>
>> I am trying to do SNMP v3 get request to 2 different devices with same
>> user name , always 1 device get successful, other get time out. I
>>referred
>> earlier posts and tried all the solutions like localizing keys , nothing
>> works. Can you pls help me how to fix this.
>>
>> Here my USM portion of code
>>
>>
>> private static USM usm;
>>
>>
>>
>> static{
>> SecurityProtocols securityProtocols =
>> SecurityProtocols.getInstance();
>> securityProtocols.addPrivacyProtocol(new PrivAES128());
>> securityProtocols.addPrivacyProtocol(new
>> PrivAES192With3DESKeyExtension());
>> securityProtocols.addPrivacyProtocol(new
>> PrivAES256With3DESKeyExtension());
>> securityProtocols.addPrivacyProtocol(new PrivDES());
>> securityProtocols.addPrivacyProtocol(new Priv3DES());
>>
>> usm = new USM(securityProtocols, new
>> OctetString(MPv3.createLocalEngineID()), 0);
>> SecurityModels.getInstance().addSecurityModel(usm);
>>
>> }
>>
>>
>> public static String doGet1(String targetAddr,String securityName, OID
>> authenticationProtocol, String authenticationPassphrase,
>> OID privacyProtocol, String privacyPassphrase, String
>> engineID,
>>String
>> oid,Logger logger){
>>
>>
>> try{
>> usm.addUser(new OctetString(securityName),new UsmUser(new
>> OctetString(securityName),authenticationProtocol
>> ,authenticationPwd,privacyProtocol,privacyPwd));
>>
>> // usm.addLocalizedUser(engineid, new OctetString(securityName),
>> authenticationProtocol,
>> SecurityProtocols.getInstance().passwordToKey(authenticationProtocol,
>> authenticationPwd, engineid),
>> // privacyProtocol,
>> SecurityProtocols.getInstance().passwordToKey(privacyProtocol,
>> authenticationProtocol, privacyPwd, engineid));
>>
>> // usm.addLocalizedUser(engineid, new OctetString(securityName),
>> authenticationProtocol, authenticationPassphrase.getBytes(),
>> // privacyProtocol, privacyPassphrase.getBytes());
>>
>>
>> }
>>
>>
>>
>>
>>
>> Thanks
>> -Senthil
>>
>>
>
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