|0 1|1 3|3 4|4 6|
|0 5|6 1|2 7|8 3|
+----------------+----------------+----------------+----------------+
|cccccc0gcccccccc|cccccccc11111111|11111110mmmmmmmm|mmmmmmmmmmmmmmmm|
+----------------+----------------+----------------+----------------+
where "c" is the bits of the assigned company_id, "0" is the value of the universal/local bit to indicate universal scope, "g" is individual/group bit, and "m" is the bits of the manufacturer-selected extension identifier
a) insert two octets, with hexadecimal values of 0xFF and 0xFE in the middle of the 48-bit MAC (between the company_id and vendor-supplied id)
b) invert the "u" (universal/local) bit: invert the value of the universal/local bit
Netzwerkteil Hostanteil
2021:0032:0048:0064 : 9ade:21ff:fed9:77b4
48bit MAC des Interfaces
übersetzt in 64bit Adresse IEEE EUI-64 Format
X
X
7.
-) 98:de:21:d9:77:b4 (MAC)
a) 98de:21ff:fed9:77b4
b) in „98de“
hex: 9 8 d e
bin: 1001 1000 1101 1110
flip 1234 5678 !
bin: 1001 1010 1101 1110
hex: 9 a d e
a)+b)-> 9ade:21ff:fed9:77b4