What decides which class an IP Address belongs to...the IP Address number or the subnet mask?
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What decides IP Address Class???
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The subnet mask is what decides this and the classful addresses set forth by the IEEE.
The standard gave a range of IPs:
1.0.0.1 - 127.255.255.255 would have a default subnet mask of 255.0.0.0. Both would be converted to binary. This address class in binary would all begin with01.128.0.0.1-191.255.255.255 would have a default subnet mask of 255.255.0.0. Both would be converted to binary. This address class in binary would all begin with
10.192.0.0.1-223.255.255.255 would have a default subnet mask of 255.255.255.0. Both would be converted to binary. This address class in binary would all begin with
110.So try it.
- Convert 126.0.0.1 to binary and note the first 2 binary digits.
- Convert 180.0.0.1 to binary and note the first 2 binary digits.
- Convert 222.0.0.1 to binary and note the first 3 binary digits.
Note how each conversion matched what I told you that the binary digits would be. This is how it worked for assigning classes. Then they applied the subnet masks to those division lines.
Cordially,
Ronnie Wong
Edutainer Manager, ITProTV*if the post above has answered the question, please mark as solved.
**All "answers" and responses are offered "as is" and my opinion. There is no implied service, support, or guarantee by ITProTV. -
Thank you.
