Ethereal-users: [Ethereal-users] Viewing 64bit counters in an ethereal capture

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From: "Dhanak, Vipul (Vip)" <vip@xxxxxxxxxx>
Date: Wed, 28 Jun 2006 16:26:09 -0400
I'm currently using Ethereal 0.10.14 to try and  capture some SNMP traffic from a Cisco 7x00 switch for analysis.  I'm primarily interested in the stats reported in the ifXentry table (1.3.6.1.2.1.31.1.1.1) table which contains 64bit counters.

The capture appears to happen as expected but the results I see in the output of the snmpget command is different than the value shown in Ethereal.  For example, during one of the polls the value shown from snmpget was (counter64) 2934035119 whereas Ethereal shows Value: Counter64: 15195617933287765935.  

Subsequent snmpget's of the counter show increasing values in my snmpget tool whereas the values seen within Ethereal don't seem to show this pattern, and often go down before going up during the next poll. 

Is this the expected behavior ?  i.e. do I need to do some conversion to the value shown in Ethereal in order to get the correct result ?  I've tried reverting back to older versions of Ethereal but the results remain the same.

Any help with troubleshooting (or explaining this behavior) would be much appreciated.

Regards.

Vip.

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