The mac address can be easily found. The problem here is that Linux won't
accept the same sub network on two different interfaces and the IPs of the
remote boxes can't be changed. This has to be handled by routing below the
interface level, or raw Ethernet.
--------------------------------------------
On Mon, 11/4/13, Joseph Bouchard <> wrote:
Subject: Re: [ts-7000] RE: ts-7800 how do I make 4 (at least 2) identical
network stacks?
To:
Date: Monday, November 4, 2013, 5:39 PM
Hi,
I've been following along in the background, reading
about half of
what's been said, and understanding less, but I
haven't seen anyone
suggest this...
Can you use ARP to an advantage here? The normal way
I've used ARP is
when we have a terminal server which has not yet been
configured... you
arp the mac address to a hostname on your PC, then connect
to the still
unconfigured box, and configure it. Your computer knows how
to find
that remote box by it's mac address, even if the remote
box doesn't yet
know what it's IP address is yet. Can we do that here?
Imagine this implementation... You have 4 boxes which all
want to have
the same IP address, but they all have different MAC
addresses, which
I'll refer to MAC1, MAC2, etc. On your TS7800 you have
a plain old
single interface eth0 with the address of your choice, and a
typical
socket listener. When a client connects, you accept(), like
you
normally would. It's been years since I've dealt
with the addr structs
the sockets use, but I'm thinking there is a way to tie
a mac address to
the socket, or lacking that use arp. At that point your
file descriptor
is working correctly and you don't care about IP
addresses, you are just
talking back and forth op that open socket.
Maybe I've missed some critical detail, but the point is
when you use
mac addresses, and/or hostnames, and you don't worry
about addresses any
more.
Good luck,
Joe
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