Re: eth0 ARP-replying for eth1

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Henrik Nordstrom wrote:

On Wed, 24 Nov 2004, Lawrence MacIntyre wrote:

It's a routing optimization for the network.  Even if your dual-homed
machine isn't a router, it's still on both segments.  The alternative is
that the net has to route your packet to the other segment.

Erm no, the alternative is that both segments mind their own business unless I'm routing either through the host or another router.

Except that there will never be a ARP request for an IP which belongs to the other segment if your network is built correctly.

Exactly. Unless both segments feature the same private IP address range, which isn't impossible nor disallowed.

Anyway, not mine to reason why. Thanks for explaining this to me.

--
Illtud Daniel                                 illtud.daniel@xxxxxxxxxxx
Uwch Ddadansoddwr Systemau                       Senior Systems Analyst
Llyfrgell Genedlaethol Cymru                  National Library of Wales
Yn siarad drosof fy hun, nid LlGC   -  Speaking personally, not for NLW

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