[AGENT++] SNMP++ walk error. Transport operation failed. error 10055

[Anders_Koepping at gmx.de]

I have a problem concerning SNMP++:

I created an application that polls a switch every second for statistical values. The switch has 16 ports, so i did that with "snmpwalk" activating the "subtree" function.
After some time of processing (about 5-10 minutes) I get an error saying: "snmp Walk Error. Transport operation failed". After those 5 minutes this message appears after every poll. So no further snmpwalk requests happen. Increasing the timeout (from 200 to 5000 ms and in-between) does not help.

after those 5 minutes SNMP log says:
Call to bind throws error 10055
User error: Enable IPv6 and recompile snmp
Why is SNMP++ sending to a IPv6 address after those 5 minutes?

before the error SNMP log says:
++ SNMP++: sending to 192.168.2.138/161:
afterwards it says:
++ SNMP++: sending to [0000:0000:0000:0000:0000:ffff:c0a8:028a]/161


what does this error code 10055 mean? Is it that WinSocket Buffer is at its maximum? Or is the switch agent overloaded?
 

Any help would be appreciated.

Andy
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