Determine additional details using your IP address.
Determine additional details using your IP address.
The test was provided by our professor, and I wasn't sure how they obtained the answers. Can we find a method to get these values without needing the IP address or subnet mask? SM is not specified, NA for network address, BA for broadcast address, FuH for first usable host, LuH for last usable host.
I completed this earlier, so please verify with other references or your classmates. If you don’t have subnets, examine the IP class ranges (A, B, C).
1. 192.45.20.4 --> CLASS C SM --> /24 | 255.255.255.0
2. NA = Network Address --> 192.45.20.0
3. BA = Broadcast Address --> 192.45.20.255
4. FuH = First Usable Host --> 192.45.20.1
5. LuH = Last Usable Host --> 192.45.20.254
2.- 155.65.32.5 --> CLASS B SM --> /16 | 255.255.0.0
3. NA = Network Address --> 155.65.0.0
4. BA = Broadcast Address --> 155.65.255.255
5. FuH = First Usable Host --> 155.65.0.1
6. LuH = Last Usable Host --> 155.65.254.254
I hope this clarifies things, feel free to ask if you need more details.
You only have the IP address, not the subnet mask or CIDR notation. Without this information, it’s impossible to determine the exact values required. You might try an informed guess based on general guidelines, but these aren’t strict rules and shouldn’t be relied upon. For instance, a network like 10.10.0.0/16 is commonly used in Class A ranges, even though it doesn’t use the standard subnet mask. Each class can still be split into smaller networks, so without the mask or CIDR details, you can’t be certain. If no further clarification is provided, the question may be unclear or poorly phrased.
I will state it clearly: I personally approve of all /32 addresses. If your professor is incorrect, please explain the issue and I’ll help you understand subnetting until you get the right answer.
It was similar to: If they don't give the subnet mask, it will stick to the class rule. After you know or receive the subnet, it no longer follows that rule—you can then subnet or adjust it as needed. I’m not sure about the details, thank you for breaking it down when you first started learning networking; @LorotoaM seems to be diving into this topic now. Literally the first "networking" task I tackled was a big deal xD
Thanks for your responses. I believed this question might be an error from my professor, since I've encountered networks using 10.0.0.x IP addresses with a 255.255.255.0 subnet mask. After discussing with classmates, they followed the same approach as @jauxan.