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Re: netmask question





On Sun, May 21, 2023 at 10:49 PM <coreyh@free.fr> wrote:
Hello list,

currently the netmask for an IPv4 is 255.255.255.255.
I am just not sure, why can't the netmask for IPv4 be 768.768.768.768?

The IPv4 standard only allows each octet to be a value between 0 - 255. Each Octet is 8 binary bits which adds up to a total of 255 if all bits are set to on.

The only address that should have a netmask of 255.255.255.255 is the Loopback interface.

Tim

 
Can I set that a netmask directly in linux OS?
If so we have much more IPv4 space available, even no IPv6 is needed.

Thank you.
Corey H.



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