Samman Kaseeb Sleiman said:
You don't know what you're talking about.
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Perhaps OP is not an IT expert (it is not a shame) ”“ but sorry, you seem to be lacking some information, too.
Samman Kaseeb Sleiman said:
MAC address is at no point exposed via internet.
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It can be detected remotely. Btw, in many intranets the network administrator limits what device can be connected via the MAC address detection.
Samman Kaseeb Sleiman said:
But one IP is always shared by many users - this is simply how internet works.
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Definitely not. (On the contrary, the
real internet is working just the opposite.) There are two possible kinds of IP addresses: fixed public IP address and the internal one. Fixed public IP address is globally assigned to a particular device, internal one is assigned only in the subnetwork (nowadays, usually temporarily via DHCP server). Originally, all IP addresses were of IPV4 type, fixed and public and every device had its own unique address. As Internet grew, a shortage of addresses appeared. So such a solution was applied where some address were declared for internal use in various intranets only; then the same address can be used for many devices and consequently, all the devices are publicly visible under the one address of the intranet gateway. As it did not help after some years, a new concept of IPV6 addresses was introduced when all the addresses are obligatorily public and fixed.
So nowadays
”“ If you have IPV4 address only, you can have a (fixed) public or only an internal one (yes, true, the majority of users has only an internal one)
”“ If you have IPV6 address too (definitely not rare), it is fixed and public.
JeffKeane said:
Thanks - yeah it would just get too complicated switching between multiple MAC addresses running from the same computer, with different IP addresses for each. Honestly just easier to get a separate PC.
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Well, it depends.
a) Do you need to switch the addresses? Is it not sufficient just to assign a new one?
b) For example, under Linux/Unix the MAC address change is just one command in the shell (command line).
Last edited: Jul 29, 2022
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