[HECnet] LQA system ID message

[Paul_Koning at Dell.com]

I was watching the MOP Console system ID messages from DECnet/E on simh, with an emulated LQA.   Noticed something odd: the source address was broadcast.   That's not valid, of course.   The question is why that happened.

The answer is that the emulation uses the address in slot 0 of the address filter as the source address.   The hardware doesn't care what order the addresses go in as far as filtering is concerned; DECnet/E puts broadcast in slot 0 and the physical address in slot 1, followed by any multicast addresses.

Is the SIMH behavior also what a real LQA does?   That would be an interesting DECnet/E bug if so...   Or does a real LQA just use the physical address, as a UNA would?

	paul