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  1. How do you calculate the prefix, network, subnet, and host numbers?

    28 Part 1 of 2 IPv4 Math With an IPv4 address and the network mask, the network mask length, or host mask, you can calculate the Network Address, Broadcast Address, Total Addresses, Usable …

  2. ipv4 - The slash after an IP Address - CIDR Notation - Network ...

    May 26, 2023 · The slash following the IP address is the abbreviation for the subnet mask. The binary version of a subnet mask is going to be comprised of ones and zeros just as the binary verison of an …

  3. Why the host part of a Mask is 254 (256-2) instead of 253?

    Apr 27, 2022 · A host part with all 0 s isn't usuable either (that address is identical to the subnet prefix), so that leaves you with 254 usable host addresses for a /24 subnet (2 (32-24) -2), including any …

  4. different network mask and subnet mask and netmask

    Simply put, network and subnet are really the same thing if used as nouns, but network is more appropriate today as a noun, and subnet as a verb. A network or subnet mask is the same thing …

  5. What is the practical use of a /31 CIDR or 255.255.255.254?

    Jul 23, 2018 · With a /31 subnet, we are left with zero usable hosts. The /31 subnet only has two hosts - one for network and another for broadcast. I am wondering why would someone ever use this subnet.

  6. What is the point of a subnet mask on a local network?

    May 17, 2016 · I have a question regarding subnet masks and my understanding (or misunderstanding of them). So when a subnet mask is used, a bitwise AND is performed using the subnet mask and …

  7. Is there a downside to using a subnet mask other than 255.255.255.0?

    Jan 15, 2016 · That got me thinking, are those the only reasons to use 255.255.255.0? What exactly would change for people if the default mask was 255.255.0.0 instead? Is there some downside to …

  8. What are the problems that can arise if a network host has the subnet ...

    Mar 16, 2016 · Supposing the IP address is correct and the gateway IP address is also correct, but the mask is different than the one in the router/default gateway.

  9. Communication between different subnet MASKS with IP address that …

    Jul 9, 2015 · ARP requests do not include any data about subnet masks, so there is no way for Host B (or A) to know that the other host has a different subnet mask at this point. Host A now has Host B's …

  10. Logic of subnetmask 255.255.255.252 networking in Packet Tracer

    Feb 14, 2024 · Error Invalid IP for this subnet mask entered. The way i try to use the logic is i cant use more than 2 or 3 IPs within 252. So interms of router IP, i try to start with 192.168.6.1 to 192.168.6.2. …