Windows Network Adapter IP address. Is this defining a subnet?
What is the Windows Network Adapter IP address? How does this work?
Is 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 255.0.0.0 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 255.255.0.0 the remaining 2 numbers are ignored?
If the Network Adapter IP address was 132.99.1.2, any message with destination IP address starting with 132.99 would be directed to this adapter?
Likewise, first number 192-223, mask is 255.255.255.0, last number is ignored?
If the Network Adapter IP address was 199.10.9.8, 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?
Is 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 255.0.0.0 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 255.255.0.0 the remaining 2 numbers are ignored?
If the Network Adapter IP address was 132.99.1.2, any message with destination IP address starting with 132.99 would be directed to this adapter?
Likewise, first number 192-223, mask is 255.255.255.0, last number is ignored?
If the Network Adapter IP address was 199.10.9.8, 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?
Last Comment
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 0.0.0.0; 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 255.255.255.255.
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
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 0.0.0.0; 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 255.255.255.255.
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
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 172.16.0.0 is /12, not /16.
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!
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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 10.0.0.0/8 IP space.