ipv4 - How to check for a valid public IP address? - Network ...
@MikePennington - for a private network using puplic IPv4 addresses that are actually in use outside of the private network (ie: the internet), how would someone inside the private network reach a public …
Is `0.0.0.0/1` a valid IP address? If so, what does it indicate?
Nov 14, 2022 · I know that 0.0.0.0/0 represents a default route. But I would like to understand what does 0.0.0.0/1 represents? Is it even a valid thing in networking?
What is a valid public IP address? - Network Engineering Stack Exchange
Jun 27, 2016 · What is a valid public IP address? When I was checking my ID to see if it was blacklisted, it came up with the above Amanda… "Please enter a valid public IP address,", so therefore my …
ip - How localhost and its opposite 0.0.0.0 works - Network …
May 3, 2024 · Binding to 0.0.0.0 makes it accessible on any IP address on any interface, physical or virtual. For the subnet mask question, please refer to How do you calculate the prefix, network, …
ipv4 - How to find the first and last address in the FIRST AND LAST ...
Oct 5, 2020 · It's like I almost understand it until I get to knowing how to find the first and last host in the LAST address (last subnet). My given address is 130.56.0.0/16.
ip - Why the host part of a Mask is 254 (256-2) instead of 253 ...
Apr 27, 2022 · For instance, on the 10.0.0.8/30 subnet, the directed broadcast address that cannot be used as host address is 10.0.0.11. A host part with all 0 s isn't usuable either (that address is …
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 …
Why is 10.1.255.255 an invalid broadcast address?
Oct 10, 2019 · Therefore, the only valid broadcast address present in the list is in answer (d). Yes, CIDR is the modern way, and Classes are obsolete, but the IETF documentation is the agreed reference …
Cisco Packet Tracer gives "Invalid IP Address" when I assign an address ...
Jan 1, 2022 · IP addresses from 224.0.0.0/4 are multicast addresses. They cannot be used as source address or for unicast. Unless you actually own the IP address range you might want to stick to RFC …
ip - How do you calculate the prefix, network, subnet, and host …
Example: IP: 128.42.5.4 In binary: 10000000 00101010 00000101 00000100 Subnet: 255.255.248.0 How could you determine the prefix, network, subnet, and host numbers?