Re: [Autoconf] what's a router

Alexandru Petrescu <alexandru.petrescu@gmail.com> Thu, 05 August 2010 11:59 UTC

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Date: Thu, 05 Aug 2010 14:00:02 +0200
From: Alexandru Petrescu <alexandru.petrescu@gmail.com>
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To: Rogge Henning <henning.rogge@fkie.fraunhofer.de>
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Subject: Re: [Autoconf] what's a router
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Le 05/08/2010 13:39, Rogge Henning a écrit :
>> -----Ursprüngliche Nachricht-----
>> Von: Alexandru Petrescu [mailto:alexandru.petrescu@gmail.com]
>>
>>> Yes... difficult choice between the localhost interface and
>>> the only physical outgoing interface wlan0.
>>
>> So a MANET Router actually has at least two interfaces, which
>> makes it more of a router indeed, in my reading.
> WTF ?
>
> So a computer with two localhost interfaces is a router in your oppinion ?
> Funny idea to forwarding a packet with a nexthop on a localhost interface.

Funny indeed... it would still route between localhost interfaces, there 
would be choice for tht algo.

>>>>> And you don't need any header files like route.h on a
>> router, just
>>>>> on your development system. I don't think you will find many
>>>>> embedded routers (DSL, MANET, ...) with header files on them.
>>>>
>>>> WEll... the /usr/include stuff is there everywhere in the deployed
>>>> routers running binaries.  E.g. linux phones.  I think a
>> device that
>>>> boots a kernel has a file system and that should have a
>> /usr/include.
>>>
>>> Maybe you should check your facts before you post stuff like this.
>>>
>>> I just opened the console of my android smartphone (linux
>> based !) and
>>> I was not surprised that there are no include files on the device.
>>
>> Good to know, I haven't tried android linux.
>>
>>> Include files are necessary to COMPILE code... not to run it. They
>>
>> Compile with static or dynamic link edition?
> Both of them. Header files DO NOT MATTER except for the compiler.
>
>>> are a waste of space on embedded linux systems, because you
>> don't have
>>> a compiler on them. Noone creating a sane distribution for
>> an embedded
>>> linux system would add an include file to it.
>>>
>>> I would bet that neither a windows smartphone, nor a webos
>> palm one,
>>> nor an iphone has any include header files on it's flash.
>> Unless the
>>> user installed it afterwards.
>>
>> Libraries .so, .dll, modules .ko and kernel images may need
>> .h at run time...
> Good luck finding a header file on your windows machine.
>
> Alexandru, please take a break and read some good books about C, operation
> systems and compilers. I think you have proven that you need to do some
> research.

Ok, good advice in general.  I will have to look closer at this.  I do 
like the idea of router.h representing a router software though.

Alex

>
> Henning Rogge
>
> --
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