Re: Running Ethernet without ARP

[linux-os]

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.

Cheers,
Dick Johnson
Penguin : Linux version 2.6.9 on an i686 machine (5537.79 BogoMips).
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