How do i identify IP addresses (IPv4, IPv6) and their default subnet masks?

I do not know how well you understand computers, so all i would say is, don't worry about IPv6, it's a tech for the future and does not have any real use yet.





In case of IPv4, the default subnet depends on the class of IP address used. For instance, if you use an ideal home router setup, the IP looks something like ';192.1xx.xxx.xxx'; This is a class C address and so it's default subnet will be 255.255.255.0





If you expected something more in detail, follow up and let me know how much you already know! :)





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Well, the above 2 answers are excellent! Kudos guy's! saw them after i posted this one!!





I had refrained from boggling you with the above details!How do i identify IP addresses (IPv4, IPv6) and their default subnet masks?
For what do you need to determine an IP address and using which operating system? Provide some more information to get a real answer!How do i identify IP addresses (IPv4, IPv6) and their default subnet masks?
You can check it through some sites.





examples are





www.whatismyipaddress.com
Another article I did to compare IPV4 and IPV6.





Ipv4 vs. Ipv6





Ipv4 is the fourth version of Internet protocol, but the first one to be widely deployed. It uses a 32 bit addressing and allows for 4,294,967,296 unique addresses. Ipv4 has four different class types, the class types are A, B, C, and D. An example of Ipv4 is 207. 142. 131. 235. The ipv4 uses a subnet mask because of the large numbers of computers used today.





The subnet mask helps reduce the number of unique IP given to companies, corporations and so on. An example of a subnet mask is a company. A architectural company is given one ip address to use in their company. The IP that they are given is the class C addresses, 192. 182. 162. 0. However, the employees want to send information about the plan to a fellow employee. The default subnet mask is 255. 255. 255. 0 this default is used so that people can send instant messages to each other without downloading programs such as MSN messenger. The 0 in the subnet mask allows you to have 16 different networks having 14 computers per network allowing you to have a total of 224 computers in the company. You can create these networks by modifying the 0 the only number you can modify in the network. In the binary version of the 0 of the subnet mask it looks like this 0000. You can modify the numbers from 0000 鈥?1111. Those numbers will represent your network, you will then need numbers for your computer. When adding the numbers for the computer your IP would look like this in tens. 255.255.255.0-0 the zero after the dash represents your computer number. The way you can modify the number is the same as the network number, the difference is that you can only the numbers 0001-1110 in other words you cannot have all ones or all zeros. For further reference there is a diagram in the next page.





Ipv6 is the next in the advancement of IP鈥檚. Although it is version 6 it will probably be the next widely deployed Internet protocol. Compared to the Ipv4 which allows for only 4,294,967,296 unique addresses, the Ipv6 that uses a 128-bit system will hold 340-undecillion (34, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000, 000) this number is so vast that there are more unique ip addresses than stars in the universe, as we know it. However, the Ipv6 will not come out till at least 2025 in because they need time to fix the bugs in the protocol. An example of Ipv6 is:


207. 142. 131. 235. 207. 142. 131. 235. 207. 142. 131. 235. 207. 142. 131. 235.





The reason we may need to switch from Ipv4 to Ipv6 is because of the population of the world. The rate at which the world鈥檚 population is growing is nothing to look down at. Also in the future all vehicles will probably be networked in order to use Onstar or other navigational devices and those need IP鈥檚 too. So eventually we would need more unique IP鈥檚 than the number we have now.
Try to identify information's about your IP address and PC on:





http://www.ipaddresslocation.org


http://www.find-ip-address.org
To do this, we need to convert the first octet to binary, and look for the position of the first zero.





Class A: 0xxx xxxx 0-127


Class B: 10xx xxxx 128-191


Class C: 110x xxxx 192-223


Class D: 1110 xxxx 224-239 - Multicast


Class E: 1111 xxxx 240-255 - reserved





The word normally used instead of default is natural mask,