It means your IP address has expired (if dynamic) or you released the adaptor manually (/release). On some older systems it can signal the failure of DHCP to get a dynamic address.
The IP protocol uses a numerical address known as an IP address to uniquely identify a network and a host within that network. An IPv4 address consists of four octets (e.g., 192.168.1.1), while an IPv6 address is longer and uses hexadecimal notation (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334). Each address is divided into two parts: the network portion, which identifies the specific network, and the host portion, which identifies the individual device on that network.
Assuming that !0000 is meant to be 10000, it is 10000000.
To condense an IPv6 address, you can omit leading zeros in each 16-bit block and replace contiguous blocks of zeros with a double colon (::), but this can only be used once in an address. For example, the address "2001:0db8:0000:0000:0000:0000:0000:0001" can be condensed to "2001:db8::1". This makes the address shorter and easier to read while maintaining its uniqueness.
The address "0:AA::0" is in IPv6 notation. To convert it to its original unabbreviated form, you replace the "::" with the appropriate number of zeros to fill in the missing segments. The full address would be represented as "0000:00AA:0000:0000:0000:0000:0000:0000".
When you remove one or more quartets with all 0s from an IPv6 address, you can replace them with a double colon (::). This shorthand notation can only be used once in an address to avoid ambiguity. For example, the address "2001:0db8:0000:0000:0000:0000:0000:0001" can be abbreviated to "2001:db8::1" by omitting the quartets of 0s.
The "unique address" can refer to:* An IPv4 address, such as 205.17.8.14 * An IPv6 address, such as 2001:0DB8:CAFE:0001:0000:0000:0000:0005 (IPv6 addresses aren't used much yet, but they will be used more and more in the future) * A domain address, such as www.google.com
His current address is H.E.L.L the zip-code is 0000
the code is 0000
1 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
An IP address code is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It serves two main functions: identifying the host or network interface and providing the location of the device in the network. IP addresses can be in IPv4 format (e.g., 192.168.1.1) or IPv6 format (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334), with IPv6 designed to accommodate a larger number of devices. Overall, the IP address is crucial for routing data between devices on the internet.
A full IP address, or Internet Protocol address, is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It serves two main functions: identifying the host or network interface and providing the location of the device in the network. IP addresses can be classified as IPv4, which consists of four sets of numbers ranging from 0 to 255 (e.g., 192.168.1.1), or IPv6, which is a longer alphanumeric format designed to accommodate a larger number of devices (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334).
The easiest way to do this is to convert your subnet mask, 255.255.240.0 to binary. This subnet is a modified class B network.To find the IP address rangeTo find the IP address range, you need to compare your IP address and Subnet mask in binary.Your subnet mask in binary would be:1111 1111 . 1111 1111 . 1111 0000 . 0000 0000For reference, your IP in binary would be:1001 1010 . 0001 0000 . 0011 0100 . 0001 0000If we match up your IP to the network bits of your subnet, like so:IP:1001 1010 . 0001 0000 . 0011 0100 . 0001 0000Subnet:1111 1111 . 1111 1111 . 1111 0000 . 0000 0000..we can match the network bits with the IP address to come up with the base network address to see where your network starts.1001 1010 . 0001 0000 . 0011 0000 . 0000 0000When we convert that back to decimal, it becomes:154.16.48.0To find the highest addressable IP in our network, we take the above binary IP and change the host bits to 1.1001 1010 . 0001 0000 . 0011 1111 . 1111 1111In decimal, that becomes:154.16.63.255Your range is 154.16.48.0 to 154.16.63.255. Remember that 0 and 255 are broadcast addresses.Finding the maximum possible hosts of a given subnetIf you are just looking for the total number of hosts possible and are not concerned with what your IP range will be, you only need to convert your Subnet mask to binary.Remember that your subnet mask of 255.255.240.0 in binary would be:1111 1111 . 1111 1111 . 1111 0000 . 0000 0000Take the host bits (the zeros) and switch them to ones. Convert them from binary to decimal as one large string:Binary: 1111 1111 1111Decimal: 4,095The straight, simple answer to your question is 4,095 hosts. I can't give you a straight answer on subnets, but assuming you're talking about going from a Class B to a modified Class B network, you'd have 15 subnets with 4,095 hosts each. It is more likely that you're going from a Class C (255.255.255.0) to a modified Class B in which you now have, if you will, a negative number of subnets compared to your original network.Modifying a subnet to accomidate a given number of hostsIf you know you need, for example, 800 hosts, you can change your subnet mask bit by bit. Switching a network bit to a host bit effectively doubles the number of hosts you can have on one network. The default class C network provides 256 hosts (including broadcast). 255.255.254.0 will double the host count to 512 hosts (including broadcast). This also changes the Class C network to a modified Class B network. Switching one more bit will again double the host count to 1024 hosts (including broadcast) with a subnet mask of 255.255.252.0.