Kevin,
You are right on........
Developer's must have complete knowledge of the RFC compliancy in relation
to all of the Classes of IP addresses, Subnets, Network Addresses, Broadcast
addresses, and Host assignable IP addresses...........
If they do not know these basics in accordance with the RFC family, then you
end up with implementations that are not fully compliant, and therefore,
confusion or devices that cannot use certain IP address assignments, because
they were illegal assignments to begin with.
God forbid, if these developers had to support the full range of IP
Subnetting and the full range of IP subnet networks and subnet masks for all
of the other sub-nets within a simple Class C (ie; ....../24 , /25 , /26,
etc;.........)
Jim
K4PV
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]On
Behalf Of Kevin Purcell
Sent: Saturday, December 08, 2007 2:00 AM
To: Discussion of Ten-Tec Equipment
Cc: Kevin Purcell
Subject: Re: [TenTec] Omni VII - I feel like such a n00b...
Except it sucks if you already have a network in place that has a
zero in the second or third octets. It's a legal address (though it
seems that the O7 assumes you have a "Class C" network, an odd
assumption).
And I do hate it when a buggy device cause a network wide change to
workaround it's problems.
I think I can see how this bug came about: a naive understanding of
IP indicates that the radio's address can't be 0.0.0.0 (the default
network) or 255.255.255.255 (the broadcast address). So you write the
same validation code for each digit excluding 0 and 255 then you end
up with this issue.
So I expect it's a sort of weak specification perhaps due to not
quite understanding IP addresses. Or reusing code inappropriately/
naively. Radio people doing the Internet, eh? :-)
Should be an easy fix though.
73 Kevin
On Dec 7, 2007, at 7:57 PM, Gary Hoffman wrote:
> Yes, routers and similar network operations devices make use of 000
> and also
> 255 issued for certain operations (by convention, not necessity)
> and for
> that matter 1 and 254 are usually reserved for certain tasks as well.
>
> Since the radio is an end use device, and not a router or other
> network
> operations or management device, I can't see that this is much of a
> limitation, in practice.
>
>
> ----- Original Message -----
> From: "Duane Calvin" <ac5aa1@gmail.com>
> To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
> Sent: Friday, December 07, 2007 8:31 PM
> Subject: Re: [TenTec] Omni VII - I feel like such a n00b...
>
>
>> Except most routers are set for "0" in the third octet.
>>
>> 73, Duane
>>
>> Duane Calvin, AC5AA
>> Austin, Texas
>> www.ac5aa.com
>>
>> -----Original Message-----
>> From: tentec-bounces@contesting.com [mailto:tentec-
>> bounces@contesting.com]
>> On Behalf Of Ed
>> Sent: Friday, December 07, 2007 7:21 PM
>> To: Discussion of Ten-Tec Equipment
>> Subject: Re: [TenTec] Omni VII - I feel like such a n00b...
>>
>> Jeff Iddings wrote:
>>> Well, I'd surely hate for anyone to elaborate on why this might
>>> be.. is
>>> it a known bug? Is it something TenTec is going to fix?
>>>
>>> Ed wrote:
>>>
>>>> From the information in your post, I would think you answered
>>>> your own
>>>> question.
>>>>
>>>> Ed W3NR
>>
>> Why is it a bug ? The choices according to the information you
>> supplied
>> are from 001 to 255. That sure gives you a lot of leeway to set an
>> IP.
>>
>> Ed W3NR
>> _______________________________________________
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>>
>
>
> _______________________________________________
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--
Kevin Purcell
kevinpurcell@pobox.com
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