[olsr-dev] basic questions

[Sven-Ola Tuecke]

Hi,

OLSR needs basic IP functions up and running:

- Ping to neighbours must be successful.
- Basic IP routing must be present.
- UDP-Broadcasting must be supported

Ping uses ICMP. ICMP uses the IP layer. UDP broadcast uses the IP layer too. 
The IP layer needs ARP. ARP requires the MAC-Layer (aka Ethernet) to be up 
and running. UDP-Broadcast and ARP send to special Mac-Addr 
ff:ff:ff:ff:ff:ff which must be supported. And a decent data transfer time 
(so datagram services via pidgeon-transfer probably does not work). And no 
Firewalling or Routers in between.

Exceptions: It is possible to use Pointopoint links (e.g. PPP) with special 
config. PPP does not have ARP nor Broadcast, hence you need to set the 
BCast-Addr to the Pointopoint-Neighbour-Adress. Have I mentioned, that this 
is a special case?

P.S: You need a Von-Neumann-architecture on your computer to run OLSR AFAIK.

HTH Sven-Ola

"y varun" <(spam-protected)> schrieb im Newsbeitrag 
news:(spam-protected)
> Hi All,
> I am sorry for not changing the subject in the earlier
> e-mail. Also got the answer for the 2'nd question that
> OLSR does not depend on any other protocol.
> I would appreciate if someone can throw light on the
> 1'st question.
>
> Thanks and Regards,
> Van
>
> --- y varun <(spam-protected)> wrote:
>
>> Hi All,
>> I am a beginner in OLSR technology. I have some
>> basic
>> doubts.
>>
>>  1)Is it necessary for all nodes to be in the same
>> network to communicate via OLSR.
>>
>> 2) Does OLSR also rely on some other protocol for
>> its
>> complete functionality(eg: arp(Address Resolution
>> Protocol))
>>
>> Thanks and Regards,
>> Van.
>>
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