Re: [manet] ARP in MANETS

Hi,

I'm not arguing for ARP - am just try to understand things :-) .

Since there is no IP address in the beacon frame, you can't use it to 
map IP addresses to MAC addresses. Therefore, to go back to the previous 
question. listening to the wireless media is not good enough so there 
should be some way to request other node's MAC addresses.

I've read the paper "ARP Considered Harmful" and think that it suggests 
an interesting approach.

Kind regards
Ali

Gabi Kliot wrote:

>Hi
>
>I am not a 802.11 expert, but as far as I remember, in IBSS mode there is a
>beacon message being sent periodically (every 100-200 millisecond or so) by
>mobile stations.
>This beacon is not being sent by the same station every time, but each time
>other station is picked probabilistically to send the beacon (just number of
>milliseconds before next beacon every station must wake up and pick the slot
>out of next X slots in which it must transmit the beacon. If another station
>transmitted before me - I will cancel the beacon timer).
>
>So basically MAC mechanism guarantees (probabilistically)  that every
>station sends beacons periodically and that way no station will stay silent
>forever.
>
>Of course, if the station does not use the standard 802.11 MAC and it is
>selfish and avoids sending beacons - others will not know about it. But who
>wants to communicate with this selfish station anyway. :)
>
>
>Gabriel Kliot
>
>
>  
>
>>-----Original Message-----
>>From: yasser lotfy [mailto:yasser.lotfy@lycos.com] 
>>Sent: Wednesday, April 26, 2006 3:42 PM
>>Cc: manet
>>Subject: Re: [manet] ARP in MANETS
>>
>>
>>
>>How do you know a "quite" station exist?
>>
>>
>>
>>
>>    
>>

-- 
=====================================================
Ali Hamidian, Ph.D. student
Department of Communication Systems, Lund University

Homepage: ww2.telecom.lth.se/nrg/personnel/
Email:    alex.hamidian@telecom.lth.se
Tel:      +46 46 222 04 21
Fax:      +46 46 14 58 23
===================================================== 

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