[Tutor] Source PC MAC address

Thu Aug 25 10:42:29 CEST 2005

The problem is: you cannot do that using the socket interface as the OS
IP stack will drop all the ethernet informations. However, you can ask
the network explicitly for the MAC address handling some IP address: the
protocol is called ARP (RFC 826). To do so, the Python package dpkt
(http://www.monkey.org/~dugsong/dpkt/) might be interesting for you
(although I never used it ...) as it includes a module to handle ARP
requests.

Pierre

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Johan Geldenhuys a écrit :
> Is there a other way of doing this? Getting the MAC. I am on a ethernet
> network.
> 
> Johan 
> 
> 
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> Re: [Tutor] Source PC MAC address
> Expéditeur:
> Pierre Barbier de Reuille <pierre.barbier at cirad.fr>
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> Wed, 24 Aug 2005 17:00:46 +0200
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> 
> Socket is built up on IP, not on Ethernet: you have no way of finding a
> MAC address using sockets simply because it may not exist one ! (if
> you're not on an Ethernet network) You need to access lower levels of
> network and probably access directly the network packet as your network
> card is sending it to your OS !
> 
> Pierre
> 
> Johan Geldenhuys a écrit :
> 
>>Hi List,
>>I am doing some networking programming and would like to limit access to
>>my socket server on the the source devices' MAC address.
>>I know the IP from where the connection is coming, but how could I find
>>out what the MAC of the source device is?
>>Any quick answers / ideas?
>>Is there a build-in function in socket that can do this?
>>
>>Thanks,
>>
>>Johan 
>>
>>
>>
>>
>>
>>------------------------------------------------------------------------
>>
>>_______________________________________________
>>Tutor maillist  -  Tutor at python.org
>>http://mail.python.org/mailman/listinfo/tutor
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> 

-- 
Pierre Barbier de Reuille

INRA - UMR Cirad/Inra/Cnrs/Univ.MontpellierII AMAP
Botanique et Bio-informatique de l'Architecture des Plantes
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