> MAC addresses are trivially rewritable or fakeable. That wont give you
> security. Similarly if the terminal servers are over ethernet then decnet
> is also trivially spoofable
How do you spoof MAC addresses? I thought they were hard-coded
in the ethernet hardware/firmware. Why would any ethernet card maker
let anyone easily write into ethernet firmware? Doesn't that defeat
the whole idea of ethernet addresses being unique?
I guess hackers can easily make their own
devices that intercept ethernet traffic and replace ethernet addresses
with arbitrary addresses.
David
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