From: "Pedro Venda (SYSADM)" <pjvenda@rnl.ist.utl.pt>
To: linux-kernel@vger.kernel.org
Cc: linux-os@analogic.com
Subject: Re: Running Ethernet without ARP
Date: Tue, 23 Nov 2004 16:20:29 +0000 [thread overview]
Message-ID: <41A3634D.6050108@rnl.ist.utl.pt> (raw)
In-Reply-To: <Pine.LNX.4.61.0411230937140.4513@chaos.analogic.com>
linux-os wrote:
> On Tue, 23 Nov 2004, Karel Kulhavy wrote:
>
>> Hello
>>
>> man netdevice says:
>> "IFF_NOARP No arp protocol, L2 deswtination address not set".
>> Is it possible to run ptp Ethernet link between two Linux routers this
>> way? I would like to run the link with two constraints:
>> 1) no ARP protocol used
>> 2) The link should continue to work even if root access to one
>> computer is
>> inaccessible and the NIC in the other one is replaced without changing
>> it's MAC (for example because it doesn't support MAC change)
>>
>> Cl<
>
>
> ARP means address resolution protocol. That's how one machine
> learns about the MAC (Hardware) address of another so it can
> communicate with it. Without ARP, you need to send / receive
> broadcast packets (Like M$ Netboius). This means that everything
> is received by everyone on the LAN and needs to be dumped on
> the floor by everybody except the intended target.
or somehow a static table can be built.
not sure what the point would be, but I cannot see anything that would make it impossible.
regards,
pedro venda.
--
Pedro João Lopes Venda
email: pjvenda@rnl.ist.utl.pt
http://maxwell.rnl.ist.utl.pt
Equipa de Administração de Sistemas
Rede das Novas Licenciaturas (RNL)
Instituto Superior Técnico
http://www.rnl.ist.utl.pt
http://mega.ist.utl.pt
next prev parent reply other threads:[~2004-11-24 0:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-23 14:00 Running Ethernet without ARP Karel Kulhavy
2004-11-23 14:42 ` linux-os
2004-11-23 16:20 ` Pedro Venda (SYSADM) [this message]
2004-11-24 0:57 ` linux-os
2004-11-24 2:01 ` Bernd Eckenfels
2004-11-24 2:57 ` Robert White
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