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IP ???

IP ??? - Internet Protocol ??? - also k???n as an "IP number" ?? simply an "IP" is a numeric code that generally uniquely identifies a particular computer on the Internet. The f??mat of an IP ??? is a 32 - ??? numeric address shown as 4 8-??? octets of numbers each ?? separated by dots. Each 8-??? octet is a number between 0 ?? 255. The first group is a number between 1 ?? 255 ?? the other groups are numbers between 0 ?? 255. IP ???es are combined into subnetw??ks (subnets). Subnets consist of 4-number IP ???es ?? can be of several classes that identify how many IP ???es are in one subnet. The smallest subnet is classless ?? has less then 255 IP ???es. The others can be of the following classes: C, B ?? A classes. Class C - first 3 octets are the same:

F?? example the following IP ???es are in the same C class subnet:

4.4.3.5 ?? 4.4.3.118

Class B - first 2 octets are the same:

4.4.3.5 ?? 4.4.7.45

Class A - first octet is the same:

4.2.4.6 ?? 4.87.97.110

Also t???? are classless subnets that are used to isolate subnets that are out of A, B ?? C classes. T???? are several subnets provided f?? private usage ?? has no route on the internet, so called private netw??ks. They are 192.168.0.0/16; 172.16.0.0/15 ?? 10.0.0.0/8 - f?? use on a local area netw??k (LAN) - ?? others (public) - f?? use on the Internet ?? other wide area netw??k (WAN); static (also k???n as a permanent IP allocation; it is always the same ?? is associated as a characteristic of the local IP module) ?? dynamic (temp??ary IP ???, which changes every time you connect to ???? ISP; usually it's dialup ?? DSL netw??ks). F??mally we've described current IP st??ard called IPv4 (based on number of octets) ?? new IP v6 st??ard are already in use/implementation. This newer IPv6 st??ard is planned to replace it ?? starting to be deployed. T???? are several ??ganizations - regional Internet registries that assign Internet addresses f?? these 3 classes: ARIN, RIPE NCC, LACNIC ?? APNIC.