[CQ-Contest] arrl dx ssb spotting report

Jack Brindle jackbrindle at earthlink.net
Thu Mar 12 18:57:46 PDT 2009


Uh, let me rephrase that. The stations behind the NAT will have  
different ip addresses, issued by the DHCP server part of the NAT/ 
firewall. But, to the outside world, they will all have the same  
address. So, these could actually be distinct ops within the same LAN.


On Mar 12, 2009, at 5:01 PM, Jack Brindle wrote:

> Not necessarily true. All users behind a single NAT will have the  
> same IP address as far as the external network is concerned. The NAT  
> network could actually be very big (ours at work is US-wide  
> connected through a large VPN). So it is entirely possible that  
> these are spots by different people in different locations.
>
> Of course this also applies to participants on different computers  
> in a multi-multi, who are also probably using a single IP address  
> behind a NAT.
>
> Having pointed this out, I'd say it doesn't look all that good for  
> the spotters.
>
> Jack Brindle, W6FB
>
> -----Original Message-----
>> From: W0MU Mike Fatchett <w0mu at w0mu.com>
>> Sent: Mar 12, 2009 7:56 AM
>> To: 'Tom Osborne' <w7why at verizon.net>, 'CQ-Contest' <cq-contest at contesting.com 
>> >
>> Subject: Re: [CQ-Contest] arrl dx ssb spotting report
>>
>> Three of them used the same Ip address and the other one was in the  
>> same
>> block.
>>
>> Which means the same person.
>>
>>
>> "A slip of the foot you may soon recover, but a slip of the tongue  
>> you may
>> never get over." Ben Franklin
>> -----Original Message-----
>> From: cq-contest-bounces at contesting.com
>> [mailto:cq-contest-bounces at contesting.com] On Behalf Of Tom Osborne
>> Sent: Wednesday, March 11, 2009 9:13 PM
>> To: CQ-Contest
>> Subject: Re: [CQ-Contest] arrl dx ssb spotting report
>>
>> Any body care to compute the odds of  4 different stations with the  
>> same
>> suffix doing 4 spots in a row?  73 Tom W7WHY
>>
>>
>> 66.50.29.32 W0GHY-@ 1887 WP4U cq cq contest
>> 66.50.29.32 WA7GHY-@ 1887 WP4U arrl test
>> 66.50.29.32 W5GHY-@ 1887 WP4U arrl  looking for westcoast st
>> 66.50.29.64 W7GHY-@ 7283 WP4U arrl test
>>
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>
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- Jack Brindle, W6FB
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