On Tue, 22 Nov 2011 12:33:23 +0000 Dave wrote:
DS> On 22 November 2011 11:39,  <[email protected]> wrote:
DS> > Forget my application and consider a standalone netsnmp app.
DS> > Say, i am issuing an SNMPGET for "sysDescr.0" on a CISCO switch using 
SNMPv3.
DS> 
DS> I suspect that it is the use of SNMPv3 that is the issue here.
DS> 
DS> Before the app can send an SNMPv3 request, it needs to know the engineID
DS> of the remote agent.   It does this by querying the agent to discover its ID
DS> (either as part of opening the session, or sending the query)
DS> 
DS>    That query is done synchronously, so will hang if the agent is not
DS> responding.

A synchronous request during an asyn call is obviously a bug. I've created a
bug report for this:

https://sourceforge.net/tracker/?func=detail&aid=3446148&group_id=12694&atid=112694

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