I got IP of 67.49.5.0 from my ISP. But isnt it network address? 4

[cooperchien]

I checked my router today and found I was assigned to an IP of 67.49.5.0. I learned that all IP network addresses end with 0. If so, how could I get assigned IP of 67.49.5.0 on my router? I could even remote control to my internal server by using 67.49.5.0.
Can somebody please tell me why? I really apprecaite it.

 

[jimbopalmer]

I am betting that the subnet is not 255.255.255.0
If it was, then yes, .5.0 would be reserved, as the starting address of the range.

If it was 255.255.254.0 then 67.49.4.0 would be reserved, but .5.0 would be in the middle of the scope, not an edge.

I tried to remain child-like, all I acheived was childish.

 

[cooperchien]

the subnet mask is 255.255.248.0.
My IP is 67.49.5.0
I thought the first Ip should start from 67.49.9.0, isn't?

 

[John Lewis]

The network in this case is 67.49.0.0, the broadcast is 67.49.7.255, and everything in between is a valid host address (including 67.49.5.0).

The subnet mask controls the size of the network. A 255.255.255.0 (or /24) subnet specifies that the first three numbers are network address and the last is a host address. A 255.0.0.0 (or /8) mask indicates that the first number is the network address and the last three are the host address. Odd numbers (such as the 248 in your netmask) indicate that fractions of the "even" network address is used.

 

[fartingfrog]

It's called subnetting.