[Dxspider-support] Call Sign Validation Exceptions

[Lee Sawkins]

I am not using IP filtering for spots.  I did for some time with spots from 
DX Summit where most abuse was coming from but have discontinued that at the 
present time.  I do use IPs to track down abusers.  The recent problem with 
someone using the call VE7FKM was traced to a specific user in Arizona.

For years AR Cluster and CC Cluster have allowed calls like EI/W1AN to enter 
DX spots.  I keep hearing that this might cause problems with some software. 
I have yet to see anyone document a single case where this is true.

Yes, it is true that you cannot use EI/W1AN with a TNC.  The MYCALL will not 
accept the "/". However 99%+ users are now using the Internet.  Spots with 
EI/W1AN as either DX or Spotter are sent to TNC users with no problems at 
all.

Lee VE7CC

----- Original Message ----- 
From: "SM6U, Rickard" <sm6u at sk6aw.net>
To: "The DXSpider Support list" <dxspider-support at dxcluster.org>
Sent: Friday, March 04, 2011 10:58 AM
Subject: Re: [Dxspider-support] Call Sign Validation Exceptions


>>> Why?  Because some software will reject DX spots if the numerical IP
>>> address is from a different country than the spotter callsign.  For
>>> example, if W1AN connected to the cluster from an IP address in
>>> Ireland.
>>
>> This is just a nonsensical thing to filter on !
>> for several reasons
>
> Agreed! I think it's just VE7CC who uses a geographical filter atm. 
> Someone else ..?
>
>> My cluster is now on a server in the UK, In the past it has been on
>> various servers in the US, does this now mean that spots I make from the
>> console will be discarded because the source IP is a UK one yet I am an
>> EI
>
> Aswell, my SM-Machine has been hosting M0UKC for some years now :-)
>
>> Adding support for EI/W1AN is not as simple as just adding support for
>> it to spider, care needs to be taken that it won't have unintended
>> consequences to other nodes on the network who may not handle the EI/
>> part of the call correctly. It won't make anyone happy if each spot ends
>> up appearing twice because some nodes discarded the EI/ part of the
>> call
>
> There's some charachter limit in the callsign field in the AX25 protocol I 
> believe. It would be nice (but probably lots of work) to implement a "new" 
> protocol for spider nodes, and still run old protocol towards nodes that 
> doesn't comply. To avoid multiple spots from different cutting it could be 
> decided as some kind of standard that the first characters according to 
> old protocols would be sent (even if it would look kinda strange).
>
> Almost all packet cluster is QRT in SM these days. Just a few still alive. 
> It's easier to go 3G on your phone.
>
> /Rick
>  SM6U
>
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