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Windows Network Adapter IP address. Is this defining a subnet?

What is the Windows Network Adapter IP address? How does this work?
User generated imageIs this a subnet address, with an implied mask based on the first number?

i.e. if the first number is in the range 0-127, then the mask is and the remaining 3 numbers are ignored?
So in this example the first number is 94, so any TCP/IP traffic with a destination address starting with 94 would be directed to this adapter?

And if the first number is in the range 128-191, then the mask is the remaining 2 numbers are ignored?
If the Network Adapter IP address was, any message with destination IP address starting with 132.99 would be directed to this adapter?

Likewise, first number 192-223, mask is, last number is ignored?
If the Network Adapter IP address was, any message with destination IP address starting with 199.10.9 would be directed to this adapter?

Am I understanding this Network Adapter IP address correctly?
Windows NetworkingNetworkingTCP/IP* ip

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Avatar of kevinhsieh
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The UI looks wring. It should have IP address, subnet mask, and gateway as fields. The old class A, B, and C networks went away a long time ago.

Most of my IP addresses are in the form of 10.x.y.z, but the mask can be between /23 and /30. I have over 100 individual network segments in the IP space.
Avatar of Hazem KUNNANA
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The subnet mask is not needed in the point-to-point environment of dial.

Microsoft opted for showing the classful mask for that address as the subnet mask instead of leaving those fields blank. Typically, Windows NT 3.5 displays a subnet mask of; NT 3.51 (and higher), as well as Windows 95 and 98, display a classful mask depending on the IP address class, while Win2k and XP display a mask of

Do not worry about this information if IP connectivity through the dial-up adapter is operating correctly.
Reference: https://www.cisco.com/c/en/us/support/docs/wan/point-to-point-protocol-ppp/10350-161.html
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In my experience a Network Card does not define a Subnet. It just has an IP Address. Subnets are defined in a Router or in a Server DHCP server. The network card just uses the Subnet it is part of.
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Well said Matt. Small correction, the mask for is /12, not /16.
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Whoops. Yeah. Banged this out quickly. Thanks. I noticed a bunch of typos after the fact too but I'll just let them stand. If I was teaching a class I'd edit it for clarity... I'm sure I glossed over plenty that makes perfect sense to me!

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

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