[SNMP4J] SNMP4j drops traps throwing an exception, but trap is valid and properly processed by other applications

[Frank Fock]

Hi Soumya,

This one is a bug in the trap sender. The timeticks value must be a 
32bit value, but it has
33bits. Whireshark displays it, because it is a valid BER encoding, but 
in SNMP it is not
allowed as the x43 syntax (Timeticks) is an on 32bit restricted INTEGER 
syntax.

Best regards,
Frank

Am 24.01.2014 06:28, schrieb Chatterjee, Soumya Subhra:
> Hi Frank,
> There is one more issue with SNMP4j (I think). There is another trap, which is dropped by SNMP4j with the log entry: 2013-10-19 15:20:03,856 WARN  [DefaultUDPTransportMapping_0.0.0.0/162] snmp4j.MessageDispatcherImpl - java.io.IOException: Only 32bit unsigned integers are supported at position 48.
>
> But in other applications, including when it is captured and opened in Wireshark, it works fine and all the data is available. I am attaching the hex dump here. If needed, I can provide code snippets and Wireshark captures also.
>
> Trap data: 30:82:01:84:02:01:00:04:06:70:75:62:6C:69:63:A4:82:01:75:06:0C:2B:06:
> 01:04:01:85:36:01:01:06:02:3C:40:04:C0:A8:64:BB:02:01:06:02:01:3C:43:05:01:10:09
> :1F:34:30:82:01:50:30:1A:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:09:04:09:27:50
> :45:52:46:4F:52:4D:27:30:1B:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:04:04:0A:27
> :32:30:31:33:30:38:30:31:27:30:16:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:08:04:
> 05:27:6E:2F:61:27:30:33:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:03:04:22:27:35:
> 31:46:38:45:43:45:45:41:34:37:44:30:30:42:36:45:31:30:30:38:30:30:30:43:30:41:38:
> 36:34:42:42:27:30:1B:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:01:04:0A:27:67:76:
> 73:68:65:35:30:31:27:30:17:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:02:04:06:27:
> 48:4F:53:54:27:30:2F:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:06:04:1E:27:48:69:
> 67:68:20:56:69:72:74:75:61:6C:20:43:50:55:20:55:74:69:6C:69:7A:61:74:69:6F:6E:27:
> 30:12:06:0D:2B:06:01:04:01:85:36:01:01:06:01:01:0A:02:01:01:30:12:06:0D:2B:06:01:
> 04:01:85:36:01:01:06:01:01:0B:02:01:02:30:1E:06:0D:2B:06:01:04:01:85:36:01:01:06:
> 01:01:07:04:0D:27:56:49:52:54:55:41:4C:5F:43:50:55:27:30:19:06:0D:2B:06:01:04:01:
> 85:36:01:01:06:01:01:05:04:08:27:30:39:34:34:33:35:27
>
>
> Soumya Subhra Chatterjee
> CA Technologies
> Associate Software Engineer
> Tel:  +914066877206
> SoumyaSubhra.Chatterjee at ca.com
>
>                             
>  Please consider the environment before printing this e-mail.
>

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