Which of the following ip addresses is reserved for private use?
The Five IPv4 Classes - Quick Reference Show
In the IPv4 IP address space, there are five classes: A, B, C, D and E. Each class has a specific range of IP addresses (and ultimately dictates the number of devices you can have on your network). Primarily, class A, B, and C are used by the majority of devices on the Internet. Class D and class E are for special uses. The list below shows the five available IP classes, along with the number of networks each can support and the maximum number of hosts (devices) that can be on each of those networks. The four octets that make up an IP address are conventionally represented by a.b.c.d - such as 127.10.20.30. Additionally, information is also provided on private addresses and loop address (used for network troubleshooting). Class A Public & Private IP Address RangeClass A addresses are for networks with large number of total hosts. Class A allows for 126 networks by using the first octet for the network ID. The first bit in this octet, is always zero. The remaining seven bits in this octet complete the network ID. The 24 bits in the remaining three octets represent the hosts ID and allows for approximately 17 million hosts per network. Class A network number values begin at 1 and end at 127.
Class B Public & Private IP Address RangeClass B addresses are for medium to large sized networks. Class B allows for 16,384 networks by using the first two octets for the network ID. The first two bits in the first octet are always 1 0. The remaining six bits, together with the second octet, complete the network ID. The 16 bits in the third and fourth octet represent host ID and allows for approximately 65,000 hosts per network. Class B network number values begin at 128 and end at 191.
Class C Public & Private IP Address RangeClass C addresses are used in small local area networks (LANs). Class C allows for approximately 2 million networks by using the first three octets for the network ID. In a class C IP address, the first three bits of the first octet are always 1 1 0. And the remaining 21 bits of first three octets complete the network ID. The last octet (8 bits) represent the host ID and allows for 254 hosts per network. Class C network number values begins at 192 and end at 223.
Class D IP Address RangeClass D IP addresses are not allocated to hosts and are used for multicasting. Multicasting allows a single host to send a single stream of data to thousands of hosts across the Internet at the same time. It is often used for audio and video streaming, such as IP-based cable TV networks. Another example is the delivery of real-time stock market data from one source to many brokerage companies.
Class E IP Address ClassClass E IP addresses are not allocated to hosts and are not available for general use. These are reserved for research purposes.
Private IP AddressesWithin each network class, there are designated IP address that is reserved specifically for private/internal use only. This IP address cannot be used on Internet-facing devices as that are non-routable. For example, web servers and FTP servers must use non-private IP addresses. However, within your own home or business network, private IP addresses are assigned to your devices (such as workstations, printers, and file servers).
Special IP Addresses
What IP addresses are reserved for private networks?Address ranges to be use by private networks are:. Class A: 10.0. 0.0 to 10.255. 255.255.. Class B: 172.16. 0.0 to 172.31. 255.255.. Class C: 192.168. 0.0 to 192.168. 255.255.. Is 192.168 private or public?And don't be surprised if you have a device or two at home with a so-called 192 IP address, or a private IP address beginning with 192.168. This is the most common default private IP address format assigned to network routers around the globe.
What is the 0.0 0.0 IP address reserved for?On PCs and client devices. A 0.0. 0.0 address indicates the client isn't connected to a TCP/IP network, and a device may give itself a 0.0. 0.0 address when it is offline.
What is class A private IP address?Class A Public & Private IP Address Range
Class A addresses are for networks with large number of total hosts. Class A allows for 126 networks by using the first octet for the network ID. The first bit in this octet, is always zero. The remaining seven bits in this octet complete the network ID.
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