In software, what happens generally about endianness of MAC addresses? (Compared with IP addresses.) Processors of course vary, but assuming that we choose to the leftmost byte the msb, do people just go with the processors's own native endianness and that's it?
Sanity check: So since most processors nowadays are little-endian (exceptions: IBM z-series mainframes, MIPS? is it? Motorola 680x0 and 680x - going back a good bit; can't remember about PowerPC) then the rightmost (last) byte which is the lsb would be lowest/first in RAM on those CPUs, the lsb in a register. That correct? Unless systems software overrides this? Or has no concept of msb-lsb?