{"id":476981,"date":"2023-08-09T09:06:01","date_gmt":"2023-08-09T09:06:01","guid":{"rendered":""},"modified":"2023-12-04T15:19:43","modified_gmt":"2023-12-04T15:19:43","slug":"dotted-decimal-notation","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/dotted-decimal-notation\/","title":{"rendered":"K\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m"},"content":{"rendered":"<p>K\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201ck\u00fd hi\u1ec7u \u0111\u1ecba ch\u1ec9 IPv4\u201d, l\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ec3 hi\u1ec7n \u0111\u1ecba ch\u1ec9 IP trong m\u1ea1ng m\u00e1y t\u00ednh. \u0110\u00e2y l\u00e0 \u0111\u1ecbnh d\u1ea1ng m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c, gi\u00fap ng\u01b0\u1eddi d\u00f9ng v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh v\u00e0 qu\u1ea3n l\u00fd \u0111\u1ecba ch\u1ec9 IP. M\u1ed7i \u0111\u1ecba ch\u1ec9 IPv4 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb d\u01b0\u1edbi d\u1ea1ng m\u1ed9t chu\u1ed7i g\u1ed3m b\u1ed1n s\u1ed1 \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch b\u1eb1ng d\u1ea5u ch\u1ea5m, trong \u0111\u00f3 m\u1ed7i s\u1ed1 n\u1eb1m trong kho\u1ea3ng t\u1eeb 0 \u0111\u1ebfn 255. V\u00ed d\u1ee5: 192.168.0.1 l\u00e0 \u0111\u1ecba ch\u1ec9 IP \u0111i\u1ec3n h\u00ecnh \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n<p>Ngu\u1ed3n g\u1ed1c c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 ph\u00e1t tri\u1ec3n ban \u0111\u1ea7u c\u1ee7a Internet v\u00e0 thi\u1ebft k\u1ebf c\u1ee7a Giao th\u1ee9c Internet phi\u00ean b\u1ea3n 4 (IPv4). Kh\u00e1i ni\u1ec7m th\u1ec3 hi\u1ec7n \u0111\u1ecba ch\u1ec9 IP b\u1eb1ng \u0111\u1ecbnh d\u1ea1ng ch\u1ea5m \u0111\u01b0\u1ee3c \u0111\u01b0a ra v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 1980 nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c n\u00eau trong RFC 791, c\u00f3 ti\u00eau \u0111\u1ec1 \u201cGiao th\u1ee9c Internet\u201d. RFC n\u00e0y, \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n v\u00e0o th\u00e1ng 9 n\u0103m 1981, \u0111\u00e3 m\u00f4 t\u1ea3 c\u1ea5u tr\u00fac c\u1ee7a \u0111\u1ecba ch\u1ec9 IPv4 v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m \u0111\u1ec3 th\u1ec3 hi\u1ec7n ch\u00fang.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m<\/h2>\n<p>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m d\u1ef1a tr\u00ean kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 32 bit, \u0111\u01b0\u1ee3c chia th\u00e0nh b\u1ed1n octet (nh\u00f3m 8 bit). M\u1ed7i octet \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng m\u1ed9t s\u1ed1 th\u1eadp ph\u00e2n trong ph\u1ea1m vi t\u1eeb 0 \u0111\u1ebfn 255, c\u00e1ch nhau b\u1eb1ng d\u1ea5u ch\u1ea5m. S\u1ed1 l\u01b0\u1ee3ng \u0111\u1ecba ch\u1ec9 IP duy nh\u1ea5t t\u1ed1i \u0111a c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m c\u1ee7a IPv4 l\u00e0 kho\u1ea3ng 4,3 t\u1ef7, \u0111i\u1ec1u n\u00e0y \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t h\u1ea1n ch\u1ebf do s\u1ef1 ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng c\u1ee7a Internet v\u00e0 s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3<\/h2>\n<p>\u0110\u1ec3 hi\u1ec3u c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m, h\u00e3y xem x\u00e9t v\u00ed d\u1ee5 v\u1ec1 \u0111\u1ecba ch\u1ec9 IP 192.168.0.1. M\u1ed7i octet \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i t\u1eeb k\u00fd hi\u1ec7u nh\u1ecb ph\u00e2n sang k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n nh\u01b0 sau:<\/p>\n<ul>\n<li>192 (11000000 \u1edf d\u1ea1ng nh\u1ecb ph\u00e2n)<\/li>\n<li>168 (10101000 \u1edf d\u1ea1ng nh\u1ecb ph\u00e2n)<\/li>\n<li>0 (00000000 \u1edf d\u1ea1ng nh\u1ecb ph\u00e2n)<\/li>\n<li>1 (00000001 \u1edf d\u1ea1ng nh\u1ecb ph\u00e2n)<\/li>\n<\/ul>\n<p>Khi n\u1ed1i v\u1edbi nhau b\u1eb1ng d\u1ea5u ch\u1ea5m, ch\u00fang ta nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ecba ch\u1ec9 IP 192.168.0.1.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m<\/h2>\n<p>K\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh gi\u00fap n\u00f3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 bi\u1ec3u th\u1ecb \u0111\u1ecba ch\u1ec9 IPv4:<\/p>\n<ol>\n<li>Con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c: \u0110\u1ecbnh d\u1ea1ng n\u00e0y tr\u1ef1c quan v\u00e0 d\u1ec5 hi\u1ec3u \u0111\u1ed1i v\u1edbi con ng\u01b0\u1eddi, \u0111i\u1ec1u n\u00e0y r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng v\u00e0 ng\u01b0\u1eddi d\u00f9ng khi x\u1eed l\u00fd \u0111\u1ecba ch\u1ec9 IP.<\/li>\n<li>Tr\u00ecnh b\u00e0y nh\u1ecf g\u1ecdn: Ch\u1ec9 s\u1eed d\u1ee5ng b\u1ed1n s\u1ed1 v\u00e0 d\u1ea5u ch\u1ea5m, n\u00f3 cung c\u1ea5p c\u00e1ch tr\u00ecnh b\u00e0y ng\u1eafn g\u1ecdn v\u1ec1 \u0111\u1ecba ch\u1ec9 IP, gi\u00fap \u0111\u1ecba ch\u1ec9 n\u00e0y d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n v\u00e0 \u00edt x\u1ea3y ra l\u1ed7i h\u01a1n.<\/li>\n<li>Ti\u00eau chu\u1ea9n k\u1ebf th\u1eeba: L\u00e0 s\u01a1 \u0111\u1ed3 \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 ban \u0111\u1ea7u cho Internet, n\u00f3 v\u1eabn ph\u00f9 h\u1ee3p m\u1eb7c d\u00f9 \u0111\u00e3 c\u00f3 IPv6.<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m<\/h2>\n<p>Trong b\u1ed1i c\u1ea3nh \u0111\u1ecba ch\u1ec9 IPv4, kh\u00f4ng c\u00f3 bi\u1ebfn th\u1ec3 n\u00e0o c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m. Tuy nhi\u00ean, t\u1ed3n t\u1ea1i c\u00e1c l\u1edbp \u0111\u1ecba ch\u1ec9 IP kh\u00e1c nhau, x\u00e1c \u0111\u1ecbnh c\u00e1ch ph\u00e2n b\u1ed5 kh\u00f4ng gian \u0111\u1ecba ch\u1ec9. B\u1ea3ng sau \u0111\u00e2y ph\u00e1c th\u1ea3o c\u00e1c l\u1edbp \u0111\u1ecba ch\u1ec9 IP:<\/p>\n<table>\n<thead>\n<tr>\n<th>L\u1edbp h\u1ecdc<\/th>\n<th>C\u00e1c bit d\u1eabn \u0111\u1ea7u c\u1ee7a Octet \u0111\u1ea7u ti\u00ean<\/th>\n<th>Ph\u1ea1m vi \u0111\u1ecba ch\u1ec9 IP<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ed8T<\/td>\n<td>0<\/td>\n<td>0.0.0.0 \u0111\u1ebfn 127.255.255.255<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>10<\/td>\n<td>128.0.0.0 \u0111\u1ebfn 191.255.255.255<\/td>\n<\/tr>\n<tr>\n<td>C<\/td>\n<td>110<\/td>\n<td>192.0.0.0 \u0111\u1ebfn 223.255.255.255<\/td>\n<\/tr>\n<tr>\n<td>D<\/td>\n<td>1110<\/td>\n<td>224.0.0.0 \u0111\u1ebfn 239.255.255.255<\/td>\n<\/tr>\n<tr>\n<td>E<\/td>\n<td>11110<\/td>\n<td>240.0.0.0 \u0111\u1ebfn 255.255.255.255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m, b\u00e0i to\u00e1n v\u00e0 c\u00e1ch gi\u1ea3i<\/h2>\n<p>K\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh c\u1ea5u h\u00ecnh c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 t\u01b0\u1eddng l\u1eeda. N\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 ghi nh\u1eadt k\u00fd m\u1ea1ng. Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ecba ch\u1ec9 IPv4 \u0111\u00e3 d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ea1n ki\u1ec7t c\u00e1c \u0111\u1ecba ch\u1ec9 s\u1eb5n c\u00f3, \u0111i\u1ec1u n\u00e0y th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a IPv6 v\u1edbi kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 l\u1edbn h\u01a1n.<\/p>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 c\u1ea1n ki\u1ec7t \u0111\u1ecba ch\u1ec9 IPv4, nhi\u1ec1u gi\u1ea3i ph\u00e1p kh\u00e1c nhau \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t, bao g\u1ed3m:<\/p>\n<ol>\n<li>D\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng (NAT): NAT cho ph\u00e9p nhi\u1ec1u thi\u1ebft b\u1ecb tr\u00ean m\u1ea1ng ri\u00eang chia s\u1ebb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP c\u00f4ng c\u1ed9ng duy nh\u1ea5t, m\u1edf r\u1ed9ng hi\u1ec7u qu\u1ea3 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng c\u1ee7a kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 IPv4.<\/li>\n<li>\u00c1p d\u1ee5ng IPv6: Chuy\u1ec3n sang IPv6, s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u th\u1eadp l\u1ee5c ph\u00e2n, cung c\u1ea5p kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 g\u1ea7n nh\u01b0 kh\u00f4ng gi\u1edbi h\u1ea1n, \u0111\u00e1p \u1ee9ng s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i internet ng\u00e0y c\u00e0ng t\u0103ng.<\/li>\n<\/ol>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th>Thu\u1eadt ng\u1eef<\/th>\n<th>S\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>th\u1eadp ph\u00e2n ch\u1ea5m<\/td>\n<td>Bi\u1ec3u di\u1ec5n \u0111\u1ecba ch\u1ec9 IPv4 d\u01b0\u1edbi d\u1ea1ng b\u1ed1n s\u1ed1 th\u1eadp ph\u00e2n \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch b\u1eb1ng d\u1ea5u ch\u1ea5m (v\u00ed d\u1ee5: 192.168.0.1)<\/td>\n<\/tr>\n<tr>\n<td>Ch\u1ea5m Octet<\/td>\n<td>Bi\u1ec3u di\u1ec5n octet IPv4 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n (v\u00ed d\u1ee5: 192. 168. 0. 1)<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ecba ch\u1ec9 IPv4<\/td>\n<td>M\u00e3 \u0111\u1ecbnh danh s\u1ed1 32 bit duy nh\u1ea5t cho c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng IPv4<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ecba ch\u1ec9 IPv6<\/td>\n<td>M\u00e3 \u0111\u1ecbnh danh s\u1ed1 128 bit duy nh\u1ea5t cho c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng IPv6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m<\/h2>\n<p>Khi th\u1ebf gi\u1edbi ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed5i sang IPv6, vi\u1ec7c s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m cho \u0111\u1ecba ch\u1ec9 IPv4 s\u1ebd gi\u1ea3m d\u1ea7n. Tuy nhi\u00ean, do c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng r\u1ed9ng kh\u1eafp v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o IPv4, k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m s\u1ebd v\u1eabn c\u00f2n ph\u00f9 h\u1ee3p trong nhi\u1ec1u n\u0103m t\u1edbi. Vi\u1ec7c k\u1ebft h\u1ee3p IPv6 v\u00e0o c\u00e1c thi\u1ebft b\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng m\u1ea1ng s\u1ebd \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u h\u00ecnh m\u1ea1ng v\u00e0 th\u1ef1c ti\u1ec5n qu\u1ea3n tr\u1ecb.<\/p>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 kh\u00e1c tr\u00ean internet. Khi s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy, y\u00eau c\u1ea7u c\u1ee7a m\u00e1y kh\u00e1ch s\u1ebd \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn proxy, sau \u0111\u00f3 proxy n\u00e0y s\u1ebd chuy\u1ec3n ti\u1ebfp y\u00eau c\u1ea7u \u0111\u1ebfn m\u00e1y ch\u1ee7 \u0111\u00edch. M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m v\u00ec ch\u00fang th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m li\u00ean l\u1ea1c gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 t\u1eeb xa, c\u1ea3 hai \u0111\u1ec1u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng \u0111\u1ecba ch\u1ec9 IP \u1edf \u0111\u1ecbnh d\u1ea1ng th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m v\u00e0 k\u1ebft n\u1ed1i m\u1ea1ng:<\/p>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc791\" target=\"_new\" rel=\"noopener nofollow\">RFC 791: Giao th\u1ee9c Internet<\/a><\/li>\n<li><a href=\"https:\/\/www.ripe.net\/about-us\/press-centre\/introduction-to-ip-addressing\" target=\"_new\" rel=\"noopener nofollow\">Gi\u1edbi thi\u1ec7u v\u1ec1 \u0111\u1ecba ch\u1ec9 IP<\/a><\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n c\u00f3 d\u1ea5u ch\u1ea5m l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n cho s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a Internet. T\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 \u0111\u00e3 cho ph\u00e9p qu\u1ea3n l\u00fd v\u00e0 tr\u00ecnh b\u00e0y \u0111\u1ecba ch\u1ec9 IP hi\u1ec7u qu\u1ea3, ngay c\u1ea3 khi th\u1ebf gi\u1edbi \u0111ang h\u01b0\u1edbng t\u1edbi vi\u1ec7c \u00e1p d\u1ee5ng IPv6. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, c\u00e1ch ch\u00fang ta x\u1eed l\u00fd \u0111\u1ecba ch\u1ec9 IP v\u00e0 giao ti\u1ebfp m\u1ea1ng c\u0169ng thay \u0111\u1ed5i, nh\u01b0ng di s\u1ea3n c\u1ee7a k\u00fd hi\u1ec7u th\u1eadp ph\u00e2n ch\u1ea5m s\u1ebd ti\u1ebfp t\u1ee5c \u0111\u1ecbnh h\u00ecnh n\u1ec1n t\u1ea3ng c\u1ee7a c\u00e1c ho\u1ea1t \u0111\u1ed9ng k\u1ebft n\u1ed1i m\u1ea1ng trong nhi\u1ec1u n\u0103m t\u1edbi.<\/p>","protected":false},"featured_media":476982,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476981","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Dotted Decimal Notation: A Comprehensive Guide<\/mark>","faq_items":[{"question":"What is Dotted Decimal Notation?","answer":"Dotted Decimal Notation, also known as IPv4 address notation, is a method used to represent IP addresses in computer networking. It's a human-readable format where IP addresses are written as a sequence of four numbers separated by periods, with each number ranging from 0 to 255. For example, an IP address like 192.168.0.1 is represented in dotted decimal notation."},{"question":"How did Dotted Decimal Notation originate, and when was it first introduced?","answer":"Dotted Decimal Notation was introduced during the early development of the internet and the design of Internet Protocol version 4 (IPv4). It was first mentioned in RFC 791, titled \"Internet Protocol,\" which was published in September 1981. This document outlined the structure of IPv4 addresses and introduced the concept of representing them in a dotted format."},{"question":"How does Dotted Decimal Notation work internally?","answer":"Dotted Decimal Notation is based on a 32-bit address space divided into four octets, each comprising 8 bits. Each octet is represented by a decimal number ranging from 0 to 255. To form an IP address in dotted decimal notation, the four decimal numbers are written together, separated by periods. For example, the IP address 192.168.0.1 is derived from four octets: 192, 168, 0, and 1."},{"question":"What are the key features of Dotted Decimal Notation?","answer":"Dotted Decimal Notation offers several key features that make it widely adopted for representing IPv4 addresses. It is human-readable, making it easy for users and network administrators to understand and manage IP addresses. The format is compact and concise, using only four numbers and periods, which reduces the chances of errors in address representation. Additionally, it has been the legacy standard for IP addressing on the internet."},{"question":"Are there different types of Dotted Decimal Notation?","answer":"In the context of IPv4 addresses, there are no variations of dotted decimal notation itself. However, different classes of IP addresses exist, each with its own range of IP address allocations. These classes are Class A, Class B, Class C, Class D, and Class E. Each class is distinguished by the leading bits in the first octet, determining the network size and address space."},{"question":"How is Dotted Decimal Notation used, and what are the challenges associated with it?","answer":"Dotted Decimal Notation is primarily used for configuring network devices, troubleshooting, and network administration tasks. However, due to the rapid growth of the internet and the increasing number of connected devices, the IPv4 address space has become limited, resulting in address exhaustion. Solutions like Network Address Translation (NAT) and the adoption of IPv6 have been implemented to address these challenges."},{"question":"How does Dotted Decimal Notation relate to the future of networking?","answer":"As the world transitions to IPv6, which offers a larger address space, the usage of dotted decimal notation for IPv4 addresses will gradually decline. However, given the extensive infrastructure reliant on IPv4, dotted decimal notation will remain relevant for years to come. The incorporation of IPv6 into network devices and systems will necessitate adjustments in network configurations and administration practices."},{"question":"How are Proxy Servers associated with Dotted Decimal Notation?","answer":"Proxy servers act as intermediaries between clients and remote servers on the internet. They often play a role in communication between devices identified by IP addresses in dotted decimal notation. By handling requests and forwarding them to the target servers, proxy servers help manage and optimize network traffic.\r\n\r\nFor more information and resources related to Dotted Decimal Notation, please refer to the following links:\r\n<ul>\r\n \t<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc791\" target=\"_new\">RFC 791: Internet Protocol<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.ripe.net\/about-us\/press-centre\/introduction-to-ip-addressing\" target=\"_new\">Introduction to IP Addressing<\/a><\/li>\r\n \t<li><a href=\"https:\/\/www.internetsociety.org\/resources\/learn\/ipv6-2\/\" target=\"_new\">IPv6 Adoption<\/a><\/li>\r\n<\/ul>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/476981","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\/476981\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/476982"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=476981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}