224.0.0.252 is a multicast ip for link-local topology discovery. It's
harmless, and you can probably turn it off by disabling the LLTD service in
Windows. See http://en.wikipedia.org/wiki/Link_Layer_Topology_Discovery for
more information.

On Tue, Feb 2, 2010 at 12:30 PM, John Ragle <tpcj1...@crocker.com> wrote:

>  Thanks, David. I have used ZA and "Sam Spade" to locate the place that
> fldigi is trying to access (and vice versa). The ultimate location is
> 224.0.0.252, which is an IP addi assigned to the IANA. I am working further
> on this matter. It looks to be harmless.
>
> JLR -- W1ZI
>
> ==================
>
>
> David McKenzie wrote:
>
> You can download a packet sniffer like wireshark (www.wireshark.org) and
> capture and review the traffic fldigi is sending and receiving. Takes some
> work and a reasonable understanding of networking, but you should be able to
> figure it out from the captures.
>
> On Tue, Feb 2, 2010 at 8:07 AM, John Ragle <tpcj1...@crocker.com> wrote:
>
>> Perhaps someone can clue me in as to what's going on here...
>>
>> I am running an F3K with pSDR 1.18.3 in WIN 7 (32 bit), vspMgr, and VAC.
>>  In digital mode, when I start fldigi (3.12.5) I notice that my internet
>> connection shows activity, both Transmit and Receive. In fact, this happens
>> even when pSDR is not running and the F3K is turned off.
>>
>> Thinking that this might have something to do with my AV software, Zone
>> Alarm 9.1.008.000, I turned off ZA. The situation still obtains, with the
>> internet connection showing T/R activity only when fldigi is running. The
>> activity is continuous as long as fldigi is running.
>>
>> I have re-booted the machine; nothing changes. I am a bit concerned that I
>> might have picked up a contaminated copy of fldigi; I downloaded this copy
>> directly from the fldigi web site.
>>
>> I would appreciate comments from anyone who sees through this behavior.
>> Other than the internet activity, everything seems normal.
>>
>> Thanks,
>>
>> John Ragle -- W1ZI
>>
>>
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>>
>
>
>
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