Devices also have a subnet mask, which defines which part of the IP address belongs to the network and which part belongs to the device.

If I manually set the IP address and subnet mask in the client, it gets ignored and the machine still gets the IP address and subnet mask from the ASA 5505.

Is there an easy way (like via a .Net library) that allows me to get the IP address and subnet mask of the local machine that the application is running on?

Remember the Subnet Mask and Default Gateway as these numbers stay the same. For your IP address, you typically only need to change the last block of digits of the IPv4 Address.

One of the most prevalent problems with IP networks occurs when IP subnet masks are incorrect. This seems to happen frequently because the concept of the subnet mask is not understood accurately. In ...

To find your IP address on a Mac, go to System Preferences. Your Mac computer may also have an external or public IP address. To find your external IP address, you can use Google.