subnet error

Sten Carlsen sten at s-carlsen.dk
Wed Feb 28 21:40:50 UTC 2007



Simon Hobson wrote:
>
>
> That's because 62.147.195.246 and 62.35.125.14 are not NETWORK 
> numbers. Subnet mask 255.255.255.0 means a mask with 24 '1's and 8 
> '0's (11111111 11111111 11111111 00000000). If you logical AND this 
> with the network number, you should get the same value - but in your 
> case this is not so.
>
> 62.147.195.246 ANDed with 255.255.255.0 gives 62.147.195.0. The 
> network number is 62.147.195.0, the broadcast address is 
> 62.147.195.255, and hosts can have addresses from 62.147.195.1 to 
> 62.147.195.254.
>
>
> You might find http://en.wikipedia.org/wiki/Subnet_mask useful
>
>   
Thank you, I overlooked this. Does it make any difference for dhcp code
if the mask has wrong size compared to other definitions in network?

-- 
Best regards

Sten Carlsen

No improvements come from shouting:

       "MALE BOVINE MANURE!!!" 



More information about the dhcp-users mailing list