1) You can have an interface with multiple IP addresses *on the same network*, provided they all look the same when the netmask is applied.That's great... I think -- or, probably *would* think, if I were a network engineer or something such, so I cared deeply about such issues. But what in the world gave you the impression that I do?
2) You cannot have the same interface on two physically different networks. Each connection to a separate physical network needs a separate physical interface. See below.Oh, *that* must be why all the other consultants are toting around laptops with thirty-eight network cards in them -- one for each LAN they ever attach to! No, hold on, wait a minute... Hey, guess what -- they *don't*!
3) The proper solution to your issue is to install a second NIC and attach that to the other network.Yeah, right... Maybe if I wanted to attach to several different networks *at the same time* -- but where did I ever say I wanted to do that?
(And are *you* going to pull a network cable from my home to wherever I go to work each morning, so I can be on my home network while I'm at the office...?)
About 2) - let's say you're on one physical network configured as 192.168.1.0 mask 255.255.255.0, but for some perverse reason you set up two computers on this physical network with 192.168.2.0 addresses. [...] imaginary 192.168.1.0 network, we could set up various machines with varying masks 255.255.255.X - [...] This divides the segment into address ranges 192.168.1.1-127 and 192.168.1.128-255. [...]En ymmärä tuosta juuri mitään, mutta se ei haita, kun ei oikein koske minun tilannettani. Mahtasitko tietää että tuo kaikki oli minulle yhtä hepreaa? Luultavasti et, kun aina vain oletat olevasi oikeassa, vaikka puhuisit jostain ihan muuta kun kaikki muut keskustelussa osallistuvat. There, that was probably just as enlightening to you as your gobbledygook was to me...
Thanks, Ross, but no thanks. Peter's really right: You should actually *read* the question before you spout off the answer to something else.