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Copied answer from Linux SuperUser board inputting your question into google word for word. Please try to do some research before hand.

If you are subnet mask such as 255.255.255.255 then your network ID and IP address will be same. Why... because SUB_NET_MASK and IP ADDRESS = NETWORK ID, so every device connected to the device will also get network ID as IP address. If A wants to send a message to B, then it will send it to the gateway first and afterwards to B. It's nothing but an end-to-end connection.

MrLitschel

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Copied answer from Linux SuperUser board inputting your question into google word for word. Please try to do some research before hand.

If you are subnet mask such as 255.255.255.255 then your network ID and IP address will be same. Why... because SUB_NET_MASK and IP ADDRESS = NETWORK ID, so every device connected to the device will also get network ID as IP address. If A wants to send a message to B, then it will send it to the gateway first and afterwards to B. It's nothing but an end-to-end connection.
 
Solution