[geeks] Question re 4 port HME cards on Netra

Sandwich Maker adh at an.bradford.ma.us
Tue Jun 24 08:59:15 CDT 2008


" From: "Bill Blum" <bill.blum at gmail.com>
" 
" Is it just me, or do all four ports on the addin card I got have the same
" apparent MAC address?

this is ethernet spec.  the mac represents the -system-, not the
-port-.  ip differentiates the ports, unless you're trunking.

confusion happened when peecees got ethernet cards, as they have no
substructure to coordinate setting a system-wide mac, so each card got
its own and people began to expect that each card/port -should- have
its own.
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought



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