TCP/IP: 10.1.1.0/24
Hi,
1. In the Logical Diagram
2. I see: 10.1.1.0 /24
3. Could somebody explain it please?
4. Thank you
Tjie
1. In the Logical Diagram
2. I see: 10.1.1.0 /24
3. Could somebody explain it please?
4. Thank you
Tjie
Last Comment
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Hi Tjie,
All IP addresses are regulated by a company called IANA - the Internet Assigned Numbers Authority. They have specifically said that any IP address beginning in 10. is reserved as an address for public networks. They have also said that the range 172.16.x.x to 172.31.x.x is reserved (Class B), and so is 192.168.x.x (Class C). The 10. range is considered to be a Class A range, and if you used it as such, it would have a subnet mask like 255.0.0.0.
However, it is not recommended that you run your network with such a large, single subnet. Using a mask of 255.0.0.0 on 10.x.x.x would give you IP addresses from 10.0.0.1 through 10.255.255.254, all on the same subnet. If the network actually got this big, you would have 16 777 214 devices connected, and doing that on a single subnet would be a very bad idea.
So, your Class A address has simply had its subnet made a lot smaller - probably just big enough to contain all the devices which it has to support. It is impractical to have a set of IPs which you will never use, which is why your subnet is 10.1.1.x on 255.255.255.0.
-tigermatt
All IP addresses are regulated by a company called IANA - the Internet Assigned Numbers Authority. They have specifically said that any IP address beginning in 10. is reserved as an address for public networks. They have also said that the range 172.16.x.x to 172.31.x.x is reserved (Class B), and so is 192.168.x.x (Class C). The 10. range is considered to be a Class A range, and if you used it as such, it would have a subnet mask like 255.0.0.0.
However, it is not recommended that you run your network with such a large, single subnet. Using a mask of 255.0.0.0 on 10.x.x.x would give you IP addresses from 10.0.0.1 through 10.255.255.254, all on the same subnet. If the network actually got this big, you would have 16 777 214 devices connected, and doing that on a single subnet would be a very bad idea.
So, your Class A address has simply had its subnet made a lot smaller - probably just big enough to contain all the devices which it has to support. It is impractical to have a set of IPs which you will never use, which is why your subnet is 10.1.1.x on 255.255.255.0.
-tigermatt
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2) The things that confused me are: i) The IP 10.1.1.0 is Class A (so the subnet mask should be 255.128.0.0 or 255.192.0.0 or 255.224.0.0 ....etc) (It should be only 2 ocktaves) ...
3) But WHY the subnet mask is 255.255.255.0 (3 octaves) (Isn't it for Class B IP address?)
4) Explain please
Thanks,
Tjie