Re: Running Ethernet without ARP

[Pedro Venda (SYSADM)]

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@xxxxxxxxxxxxxx
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
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