What is the subnet mask of this network

If interface address is 130.237.14.25/23
- what is the subnet mask of this network
- how many usable IP address in this network
- what is the Subnet ID(IP) of this network
- what is broadcast IP of this network
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saeedkhan

  • Nov 20th, 2009
 

The Default subnet mask for this Ip address is 255.255.254.254 as this is class B IP address. But the the subnet mask is 255.255.254.128/23.
Since,
          2^7=128
and the Frame size will be 2^1=2
Subnet ID= 130.237.14.0
Broadcast ID= 130.237.15.255

Correct me if I am wrong. 

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