[SNMP4J] snmp4j and UdpPortUnreachable

[Frank Fock]

Hi,

It seems that you mix up connection oriented communication (TCP) with 
connection less (UDP).
With UDP you will never know if a target port is reachable or if the 
application listening on the
target port is not responding. In both cases you simply wait forever for 
a response (=timeout).

Thus, there is no need to change SNMP4J.

Best regards,
Frank


Am 15.02.2013 16:30, schrieb vitz me:
> I'm a beginner with Java and SNMP and trying to perform simple get requests. I faced an issue when the connection timeouts seem to still have an effect, even though the port specified for SNMP connection is closed on the target host.
> Is it possible to somehow process the UdpPortUnreachable (exception) within snmp4j? So that if the port is closed the timeout setting would not have any effect. Or what could be a way for getting around this problem?
> The only way I could think of was trying to check the port using Java sockets before even trying to send SNMP requests..
> Thanks.
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