{"id":476241,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:18","modified_gmt":"2023-09-05T11:12:18","slug":"class-c-ip-address","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/class-c-ip-address\/","title":{"rendered":"\u0110\u1ecba ch\u1ec9 IP l\u1edbp C"},"content":{"rendered":"<p>\u0110\u1ecba ch\u1ec9 IP lo\u1ea1i C l\u00e0 m\u1ed9t lo\u1ea1i \u0111\u1ecba ch\u1ec9 IP \u0111\u01b0\u1ee3c C\u01a1 quan qu\u1ea3n l\u00fd s\u1ed1 c\u1ea5p ph\u00e1t Internet (IANA) ch\u1ec9 \u0111\u1ecbnh \u0111\u1ec3 \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 m\u1ea1ng v\u00e0 m\u00e1y ch\u1ee7 trong m\u1ea1ng c\u1ee5c b\u1ed9. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o kh\u00e1i ni\u1ec7m, ngu\u1ed3n g\u1ed1c, c\u1ea5u tr\u00fac v\u00e0 nh\u1eefng n\u00e9t \u0111\u1ed9c \u0111\u00e1o c\u1ee7a \u0111\u1ecba ch\u1ec9 IP Lo\u1ea1i C.<\/p>\n<h2>Ngu\u1ed3n g\u1ed1c c\u1ee7a \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C<\/h2>\n<p>\u0110\u1ecba ch\u1ec9 IP lo\u1ea1i C ra \u0111\u1eddi c\u00f9ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a Giao th\u1ee9c Internet (IP). Vi\u1ec7c t\u1ea1o ra n\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n trong ki\u1ebfn tr\u00fac x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a Internet do C\u01a1 quan D\u1ef1 \u00e1n Nghi\u00ean c\u1ee9u Qu\u1ed1c ph\u00f2ng Ti\u00ean ti\u1ebfn (DARPA) thi\u1ebft k\u1ebf v\u00e0o nh\u1eefng n\u0103m 1970. Kh\u00e1i ni\u1ec7m v\u1ec1 c\u00e1c l\u1edbp \u0111\u1ecba ch\u1ec9 IP kh\u00e1c nhau \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u trong RFC 791 n\u0103m 1981, m\u1ed9t t\u00e0i li\u1ec7u do L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) so\u1ea1n th\u1ea3o. L\u1edbp C \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u1ea1ng nh\u1ecf h\u01a1n, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c doanh nghi\u1ec7p nh\u1ecf v\u00e0 \u0111\u1ec3 gi\u1ea3i quy\u1ebft nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 nhi\u1ec1u m\u1ea1ng h\u01a1n tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<h2>M\u1edf r\u1ed9ng kh\u00e1i ni\u1ec7m v\u1ec1 \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C<\/h2>\n<p>\u0110\u1ecba ch\u1ec9 IP lo\u1ea1i C l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a s\u01a1 \u0111\u1ed3 \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 Giao th\u1ee9c Internet phi\u00ean b\u1ea3n 4 (IPv4), c\u00f9ng v\u1edbi c\u00e1c l\u1edbp A, B, D v\u00e0 E. \u0110\u1ecba ch\u1ec9 IP lo\u1ea1i C n\u1eb1m trong kho\u1ea3ng t\u1eeb 192.0.0.0 \u0111\u1ebfn 223.255.255.255. Ba octet \u0111\u1ea7u ti\u00ean (24 bit) c\u1ee7a \u0111\u1ecba ch\u1ec9 IP L\u1edbp C \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 m\u1ea1ng, trong khi octet cu\u1ed1i c\u00f9ng (8 bit) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7.<\/p>\n<p>V\u00ed d\u1ee5: trong \u0111\u1ecba ch\u1ec9 IP L\u1edbp C, 192.168.1.2:<\/p>\n<ul>\n<li>192.168.1 l\u00e0 \u0111\u1ecba ch\u1ec9 m\u1ea1ng<\/li>\n<li>.2 l\u00e0 \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 trong m\u1ea1ng<\/li>\n<\/ul>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C<\/h2>\n<p>C\u1ea5u tr\u00fac c\u1ee7a \u0111\u1ecba ch\u1ec9 IP L\u1edbp C bao g\u1ed3m 4 octet, m\u1ed7i octet ch\u1ee9a 8 bit, t\u1ed5ng c\u1ed9ng l\u00e0 32 bit. Ba octet \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c d\u00e0nh ri\u00eang cho \u0111\u1ecba ch\u1ec9 m\u1ea1ng v\u00e0 octet cu\u1ed1i c\u00f9ng d\u00e0nh cho \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7.<\/p>\n<p>V\u00ed d\u1ee5: m\u1ed9t \u0111\u1ecba ch\u1ec9 IP Lo\u1ea1i C \u0111i\u1ec3n h\u00ecnh tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y: NNNH, trong \u0111\u00f3 N bi\u1ec3u th\u1ecb M\u1ea1ng v\u00e0 H bi\u1ec3u th\u1ecb M\u00e1y ch\u1ee7. N\u00f3 cho ph\u00e9p t\u1ed1i \u0111a 256 (2^8) \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 tr\u00ean m\u1ed7i m\u1ea1ng, t\u1eeb 0 \u0111\u1ebfn 255. Tuy nhi\u00ean, c\u00e1c \u0111\u1ecba ch\u1ec9 .0 (\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nh\u1eadn d\u1ea1ng m\u1ea1ng) v\u00e0 .255 (\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t s\u00f3ng trong m\u1ea1ng) \u0111\u01b0\u1ee3c b\u1ea3o l\u01b0u, do \u0111\u00f3, s\u1ed1 l\u01b0\u1ee3ng \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 c\u00f3 s\u1eb5n l\u00e0 254.<\/p>\n<h2>C\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C<\/h2>\n<ul>\n<li>Ph\u1ea1m vi: \u0110\u1ecba ch\u1ec9 IP lo\u1ea1i C n\u1eb1m trong kho\u1ea3ng t\u1eeb 192.0.0.0 \u0111\u1ebfn 223.255.255.255.<\/li>\n<li>M\u00e1y ch\u1ee7: H\u1ed7 tr\u1ee3 t\u1ed1i \u0111a 254 m\u00e1y ch\u1ee7 (thi\u1ebft b\u1ecb) tr\u00ean m\u1ed7i m\u1ea1ng.<\/li>\n<li>M\u1ea1ng: N\u00f3 h\u1ed7 tr\u1ee3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng m\u1ea1ng \u0111\u00e1ng k\u1ec3 - kho\u1ea3ng 2 tri\u1ec7u.<\/li>\n<li>Ca s\u1eed d\u1ee5ng: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng v\u1eeba v\u00e0 nh\u1ecf.<\/li>\n<\/ul>\n<h2>C\u00e1c lo\u1ea1i \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C<\/h2>\n<p>C\u00e1c lo\u1ea1i \u0111\u1ecba ch\u1ec9 IP l\u1edbp C ch\u00ednh l\u00e0 Public v\u00e0 Private.<\/p>\n<table>\n<thead>\n<tr>\n<th>Ki\u1ec3u<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>C\u00f4ng c\u1ed9ng<\/td>\n<td>\u0110\u01b0\u1ee3c IANA ch\u1ec9 \u0111\u1ecbnh \u0111\u1ec3 s\u1eed d\u1ee5ng tr\u00ean internet. M\u1ed7i \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng l\u00e0 duy nh\u1ea5t tr\u00ean to\u00e0n c\u1ea7u.<\/td>\n<\/tr>\n<tr>\n<td>Ri\u00eang t\u01b0<\/td>\n<td>D\u00e0nh ri\u00eang \u0111\u1ec3 s\u1eed d\u1ee5ng trong m\u1ea1ng ri\u00eang. Ch\u00fang kh\u00f4ng th\u1ec3 \u0111\u1ecbnh tuy\u1ebfn \u0111\u01b0\u1ee3c tr\u00ean internet v\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong RFC 1918. \u0110\u1ed1i v\u1edbi L\u1edbp C, d\u1ea3i \u0111\u1ecba ch\u1ec9 IP ri\u00eang l\u00e0 192.168.0.0 \u0111\u1ebfn 192.168.255.255.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C: V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<p>Vi\u1ec7c s\u1eed d\u1ee5ng ch\u00ednh c\u00e1c \u0111\u1ecba ch\u1ec9 IP Lo\u1ea1i C l\u00e0 trong c\u00e1c m\u1ea1ng v\u1eeba v\u00e0 nh\u1ecf. M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c ti\u1ec1m \u1ea9n v\u1edbi \u0111\u1ecba ch\u1ec9 IP Lo\u1ea1i C l\u00e0 s\u1ef1 c\u1ea1n ki\u1ec7t c\u1ee7a c\u00e1c \u0111\u1ecba ch\u1ec9 m\u00e1y ch\u1ee7 c\u00f3 s\u1eb5n trong m\u1ea1ng.<\/p>\n<p>V\u1ea5n \u0111\u1ec1 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng:<\/p>\n<ul>\n<li>M\u1ea1ng con: Chia m\u1ed9t m\u1ea1ng l\u1edbn th\u00e0nh c\u00e1c m\u1ea1ng nh\u1ecf h\u01a1n.<\/li>\n<li>Supernetting: K\u1ebft h\u1ee3p nhi\u1ec1u m\u1ea1ng th\u00e0nh m\u1ed9t.<\/li>\n<li>D\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT): D\u1ecbch \u0111\u1ecba ch\u1ec9 IP ri\u00eang t\u01b0 th\u00e0nh \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng \u0111\u1ec3 truy c\u1eadp internet.<\/li>\n<\/ul>\n<h2>So s\u00e1nh v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh<\/h2>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 so s\u00e1nh IP lo\u1ea1i C v\u1edbi c\u00e1c \u0111\u1ed1i t\u00e1c c\u1ee7a n\u00f3:<\/p>\n<table>\n<thead>\n<tr>\n<th>L\u1edbp IP<\/th>\n<th>Ph\u1ea1m vi<\/th>\n<th>Bit m\u1ea1ng<\/th>\n<th>Bit ch\u1ee7<\/th>\n<th>M\u1ea1ng t\u1ed1i \u0111a<\/th>\n<th>S\u1ed1 m\u00e1y ch\u1ee7 t\u1ed1i \u0111a<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ed8T<\/td>\n<td>1.0.0.0 \u2013 126.255.255.255<\/td>\n<td>8<\/td>\n<td>24<\/td>\n<td>128<\/td>\n<td>16,777,216<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>128.0.0.0 \u2013 191.255.255.255<\/td>\n<td>16<\/td>\n<td>16<\/td>\n<td>16,384<\/td>\n<td>65,536<\/td>\n<\/tr>\n<tr>\n<td>C<\/td>\n<td>192.0.0.0 \u2013 223.255.255.255<\/td>\n<td>24<\/td>\n<td>8<\/td>\n<td>2,097,152<\/td>\n<td>254<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n<p>Kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 IPv4, bao g\u1ed3m c\u1ea3 \u0111\u1ecba ch\u1ec9 IP lo\u1ea1i C, g\u1ea7n nh\u01b0 c\u1ea1n ki\u1ec7t do s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a Internet. \u0110\u1ec3 kh\u1eafc ph\u1ee5c h\u1ea1n ch\u1ebf n\u00e0y, Giao th\u1ee9c Internet phi\u00ean b\u1ea3n 6 (IPv6) \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. IPv6 c\u00f3 kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 r\u1ed9ng l\u1edbn g\u1ed3m 128 bit, l\u1edbn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi 32 bit trong IPv4. D\u1ef1 ki\u1ebfn c\u00e1c m\u1ea1ng trong t\u01b0\u01a1ng lai s\u1ebd chuy\u1ec3n sang IPv6.<\/p>\n<h2>\u0110\u1ecba ch\u1ec9 IP v\u00e0 m\u00e1y ch\u1ee7 proxy lo\u1ea1i C<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP Lo\u1ea1i C \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng duy\u1ec7t web \u1ea9n danh. M\u1ed7i m\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh m\u1ed9t IP lo\u1ea1i C kh\u00e1c nhau, gi\u00fap ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u tr\u00ean nhi\u1ec1u IP. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y c\u00f3 l\u1ee3i cho c\u00e1c t\u00e1c v\u1ee5 \u0111\u00f2i h\u1ecfi t\u00ednh \u1ea9n danh cao v\u00e0 t\u00ednh \u0111a d\u1ea1ng IP, ch\u1eb3ng h\u1ea1n nh\u01b0 qu\u00e9t web ho\u1eb7c qu\u1ea3n l\u00fd nhi\u1ec1u t\u00e0i kho\u1ea3n m\u1ea1ng x\u00e3 h\u1ed9i. C\u00e1c c\u00f4ng ty nh\u01b0 OneProxy cung c\u1ea5p nhi\u1ec1u lo\u1ea1i proxy IP lo\u1ea1i C \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c nhu c\u1ea7u kh\u00e1c nhau c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.darpa.mil\/work-with-us\/technology-timeline\/internet-protocol\" target=\"_new\" rel=\"noopener nofollow\">Giao th\u1ee9c Internet \u2013 DARPA<\/a><\/li>\n<li><a href=\"https:\/\/www.ietf.org\" target=\"_new\" rel=\"noopener nofollow\">L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF)<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc791\" target=\"_new\" rel=\"noopener nofollow\">RFC 791 \u2013 IETF<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1918\" target=\"_new\" rel=\"noopener nofollow\">RFC 1918 \u2013 IETF<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/vn\/\" target=\"_new\" rel=\"noopener\">OneProxy<\/a><\/li>\n<\/ul>","protected":false},"featured_media":476242,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476241","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Understanding Class C IP Address<\/mark>","faq_items":[{"question":"What is a Class C IP address?","answer":"<p>A Class C IP address is a type of IP address that is designated for network and host addressing within local networks. These addresses are part of the Internet Protocol version 4 (IPv4) scheme and range from 192.0.0.0 to 223.255.255.255.<\/p>"},{"question":"When was the Class C IP address introduced?","answer":"<p>Class C IP address was introduced as part of the Internet's backbone architecture designed by the Defense Advanced Research Projects Agency (DARPA) in the 1970s. The concept of different classes of IP addresses was officially documented in RFC 791 in 1981 by the Internet Engineering Task Force (IETF).<\/p>"},{"question":"How is a Class C IP address structured?","answer":"<p>A Class C IP address is structured into four octets, each containing eight bits, totalling 32 bits. The first three octets (24 bits) are used for network addressing, while the last octet (8 bits) is used for host addressing within the network.<\/p>"},{"question":"What are the key features of a Class C IP address?","answer":"<p>The key features of a Class C IP address include its range from 192.0.0.0 to 223.255.255.255, its ability to support up to 254 hosts per network, and its common usage in small to medium-sized networks.<\/p>"},{"question":"What types of Class C IP address exist?","answer":"<p>There are two types of Class C IP addresses: Public and Private. Public IP addresses are assigned by the Internet Assigned Numbers Authority (IANA) and are used on the internet, while private IP addresses are used within private networks and are not routable on the internet.<\/p>"},{"question":"What are some common challenges with Class C IP addresses and how can they be mitigated?","answer":"<p>One common challenge with Class C IP addresses is the exhaustion of available host addresses within a network. This can be mitigated through techniques such as subnetting, supernetting, and Network Address Translation (NAT).<\/p>"},{"question":"How do Class C IP addresses relate to proxy servers?","answer":"<p>Proxy servers can utilize Class C IP addresses to provide anonymous browsing. Each proxy server can be assigned a different Class C IP, allowing for distribution of requests across multiple IPs. This is especially useful for tasks requiring high anonymity and IP diversity.<\/p>"},{"question":"What is the future of Class C IP addresses?","answer":"<p>The future of Class C and all IPv4 addresses is the transition towards Internet Protocol version 6 (IPv6), which was developed to overcome the limitation of IPv4's address space exhaustion. IPv6 has a much larger address space of 128 bits, as compared to the 32 bits in IPv4.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476241\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476242"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}