![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/wlan-wireless.jpg\")
<\/p>\n
Ng\u00e0y nay, AP ng\u00e0y c\u00e0ng c\u00f3 gi\u00e1 th\u00e0nh r\u1ebb v\u00e0 h\u1ea7u nh\u01b0 ai c\u0169ng c\u00f3 th\u1ec3 mua v\u00e0 tri\u1ec3n khai m\u1ed9t m\u1ea1ng Wifi, nh\u00e0 m\u1ea1ng c\u0169ng \u0111\u00e3 cung c\u1ea5p c\u00e1c AP theo \u0111\u01b0\u1eddng truy\u1ec1n mi\u1ec5n ph\u00ed cho ng\u01b0\u1eddi d\u00f9ng. V\u1edbi gi\u00e1 th\u00e0nh t\u1eeb kho\u1ea3n 250.000 \u0111\u1ed3ng, ch\u00fang ta \u0111\u00e3 c\u00f3 m\u1ed9t b\u1ed9 k\u1ebft n\u1ed1i ph\u1ee5c v\u1ee5 cho nhu c\u1ea7u c\u01a1 b\u1ea3n\u00a0nh\u01b0 k\u1ebft n\u1ed1i c\u00e1c smartphone, m\u00e1y t\u00ednh b\u1ea3ng, laptop…\u00a0Nh\u01b0ng kh\u00f4ng ph\u1ea3i c\u1ee9 c\u00f3 AP r\u1ed3i th\u00ec ch\u00fang ta c\u00f3 th\u1ec3 mu\u1ed1n bao nhi\u00eau k\u1ebft n\u1ed1i v\u00e0o AP c\u0169ng \u0111\u01b0\u1ee3c, n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c v\u1ea5n \u0111\u1ec1 sau:<\/p>\n
- \n
- \u0110\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt v\u00e0 gi\u00e1 th\u00e0nh s\u1ebd quy\u1ebft \u0111\u1ecbnh l\u00e0 AP c\u1ee7a ch\u00fang ta c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c bao nhi\u00eau k\u1ebft n\u1ed1i, th\u00f4ng th\u01b0\u1eddng nh\u1eefng AP gi\u00e1 r\u1ebb (ph\u1ed5 th\u00f4ng) th\u01b0\u1eddng ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i t\u1eeb 20 \u0111\u1ebfn 50 thi\u1ebft b\u1ecb, di\u1ec7n ph\u1ee7 s\u00f3ng nh\u1ecf, kh\u1ea3 n\u0103ng xuy\u00ean v\u1eadt c\u1ea3ng nh\u1ecf, nh\u1eefng thi\u1ebft b\u1ecb c\u00f3 gi\u00e1 th\u00e0nh cao d\u00f9ng cho doanh nghi\u1ec7p th\u00ec kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb l\u1edbn h\u01a1n, di\u1ec7n ph\u1ee7 s\u00f3ng t\u1ed1t h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng xuy\u00ean v\u1eadt c\u1ea3ng t\u1ed1t h\u01a1n. V\u00ec v\u1eady, khi ch\u1ecdn mua ph\u1ea3 ch\u00fa \u00fd c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n
- S\u1eed d\u1ee5ng c\u00e0ng nhi\u1ec1u c\u00e1c t\u00ednh n\u0103ng ch\u1ee9ng th\u1ef1c, l\u1ecdc ng\u01b0\u1eddi d\u00f9ng, c\u00e1c d\u1ecbch v\u1ee5 tr\u00ean AP th\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu c\u00e1c k\u1ebft n\u1ed1i c\u00e0ng gi\u1ea3m, b\u1edfi v\u00ec giao th\u1ee9c ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ea1ng Wifi ph\u1ee9c t\u1ea1p h\u01a1n m\u1ea1ng Ethernet LAN, n\u00ean t\u00e0i nguy\u00ean tr\u00ean AP c\u0169ng s\u1ebd b\u1ecb hao \u0111i r\u1ea5t nhi\u1ec1u.<\/li>\n
- AP c\u00f3 nhi\u1ec1u anten s\u1ebd gi\u00fap cho AP ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n, t\u0103ng kh\u1ea3 n\u0103ng ph\u00e1t nh\u1eadn s\u00f3ng tr\u00ean AP, hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a AP n\u00e0y t\u1ed1t h\u01a1n. V\u00ec \u0111\u1ea3m b\u1ea3o t\u00ednh th\u1ea9m m\u1ef9, c\u00e1c anten c\u1ee7a AP c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u1ea9n \u0111i v\u00e0o b\u00ean trong.<\/li>\n
- C\u00e0ng \u0111i xa AP th\u00ec t\u1ed1c \u0111\u1ed9 truy\u1ec1n c\u00e0ng gi\u1ea3m, kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1ch ngh\u0129 c\u1ee7a m\u1ecdi ng\u01b0\u1eddi l\u00e0 m\u1ea1ng khi d\u00f9ng Wifi th\u00ec c\u1ee9 n\u1eb1m trong t\u1ea7m ph\u1ee7 s\u00f3ng th\u00ec t\u1ed1c \u0111\u1ed9 nh\u01b0 nhau, t\u1ed1c \u0111\u1ed9 c\u1ee7a n\u00f3 s\u1ebd \u1ea3nh h\u01b0\u1edfng b\u1edfi kho\u1ea3ng c\u00e1ch t\u1eeb AP \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i, c\u0169ng nh\u01b0 v\u1eadt c\u1ea3ng gi\u1eefa AP v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i.<\/li>\n
- T\u1ed1c \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n Wifi c\u0169ng c\u00f2n ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o kh\u1ea3 n\u0103ng truy\u1ec1n nh\u1eadn c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i (\u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng, laptop…), t\u00f9y v\u00e0o c\u1ea5u t\u1ea1o c\u1ee7a anten v\u00e0 lo\u1ea1i card tr\u00ean thi\u1ebft b\u1ecb \u0111\u00f3.<\/li>\n<\/ul>\n
C\u00e1c lo\u1ea1i c\u1ed5ng c\u01a1 b\u1ea3n tr\u00ean AP:<\/strong><\/em><\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/wrt.jpg\")
<\/p>\nN\u1ebfu ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 mu\u1ed1n chia s\u1ebd internet th\u00f4ng qua Wifi th\u00ec c\u00f3 th\u1ec3 mua lo\u1ea1i AP c\u00f3 1 c\u1ed5ng RJ45 (Ethernet), v\u1edbi lo\u1ea1i n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 d\u00f9ng c\u00e1p m\u1ea1ng (UTP) \u0111\u1ec3 \u0111\u1ea5u n\u1ed1i v\u1edbi thi\u1ebft modem (router) ADSL \u0111\u1ec3 chia s\u1ebd internet cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i. Ho\u1eb7c lo\u1ea1i n\u00e0y c\u0169ng c\u00f3 th\u1ec3 d\u00f9ng cho c\u00e1c m\u1ea1ng c\u00e1p quang (k\u1ebft n\u1ed1i v\u00e0o b\u1ed9 ph\u1eadn chuy\u1ec3n t\u1eeb t\u00edn hi\u1ec7u quang sang t\u00edn hi\u1ec7u \u0111i\u1ec7n), nh\u01b0ng \u0111\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y thi\u1ebft b\u1ecb ph\u1ea3i h\u1ed5 tr\u1ee3 c\u00e1c giao th\u1ee9c\u00a0PPoA, PPoE.<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/02.jpg\")
<\/p>\nN\u1ebfu b\u1ea1n d\u00f9ng m\u1ea1ng ADSL s\u1eed d\u1ee5ng g\u00f3i c\u00f3 cung c\u1ea5p thi\u1ebft b\u1ecb ph\u00e1t Wifi c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, th\u00f4ng th\u01b0\u1eddng nh\u00e0 cung c\u1ea5p s\u1ebd b\u00e0n giao cho b\u1ea1n lo\u1ea1i\u00a0AP c\u00f3 c\u1ed5ng m\u1ed9t c\u1ed5ng RJ11, c\u1ed5ng n\u00e0y cho ph\u00e9p k\u1ebft n\u1ed1i v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet th\u00f4ng qua c\u00e1p nh\u01b0 \u0111i\u1ec7n tho\u1ea1i (hay ng\u01b0\u1eddi d\u00f9ng c\u0169ng quen g\u1ecdi l\u00e0 c\u00e1p \u0111\u1ed3ng) th\u00f4ng qua giao th\u1ee9c PPoA, PPoE. C\u00e1c c\u1ed5ng c\u00f2n l\u1ea1i l\u00e0 c\u1ed5ng Ethenet, c\u00e1c c\u1ed5ng n\u00e0y \u0111\u01b0\u1ee3c d\u00f9ng nh\u01b0 c\u00e1c c\u1ed5ng c\u1ee7a m\u1ed9t c\u00e1i Switch.<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/01.jpg\")
<\/p>\nLo\u1ea1i AP ti\u1ebfp theo ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y \u0111\u00f3 l\u00e0 c\u00f3 m\u1ed9t c\u1ed5ng RJ45 (internet\/WAN) c\u1ed5ng n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi modem (router) ADSL \u0111\u1ec3 chia s\u1ebd internet, ho\u1eb7c c\u1ed5ng n\u00e0y d\u00f9ng \u0111\u1ec3 \u0111\u1ea5u n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb chuy\u1ec3n ch\u00ednh hi\u1ec7u quang sang t\u00edn hi\u1ec7u \u0111i\u1ec7n tr\u00ean d\u1ecbch v\u1ee5 cap quang v\u00e0 AP c\u00f3 h\u1ed5 tr\u1ee3 c\u00e1c giao th\u1ee9c\u00a0PPoA, PPoE. C\u00e1c c\u1ed5ng ethernet c\u00f2n l\u1ea1i \u0111\u01b0\u1ee3c d\u00f9ng nh\u01b0 switch.<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/03.jpg\")
<\/p>\n\u0110\u1ed1i v\u1edbi c\u00e1c AP c\u00f3 th\u00eam c\u1ed5ng LAN, b\u1ea1n c\u00f3 th\u1ec3 chia s\u1ebd internet th\u00f4ng qua c\u1ed5ng LAN c\u1ee7a AP. V\u1edbi ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, b\u1ea1n ph\u1ea3i thay \u0111\u1ed5i \u0111\u1ecba ch\u1ec9 IP LAN c\u1ee7a AP v\u1ec1 chung l\u1edbp v\u1edbi \u0111\u1ecba ch\u1ec9 IP ngu\u1ed3n internet chia s\u1ebd \u0111\u1ebfn AP th\u00f4ng qua cap UTP.<\/p>\n
Ngo\u00e0i ra, c\u00f3 m\u1ed9t lo\u1ea1i AP c\u00f3 t\u00ean l\u00e0\u00a0PoE Access Points, lo\u1ea1i AP n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng ngh\u1ec7 Power over Ethernet, v\u1edbi c\u00f4ng ngh\u1ec7 n\u00e0y th\u00ec ngu\u1ed3n c\u1ee7a AP s\u1ebd \u0111\u01b0\u1ee3c cung c\u1ea5p chung v\u1edbi c\u00e1p t\u00edn hi\u1ec7u. Nh\u01b0ng \u0111\u1ec3 s\u1eed d\u1ee5ng lo\u1ea1i AP n\u00e0y th\u00ec b\u1ea1n ph\u1ea3i trang b\u1ecb m\u1ed9t lo\u1ea1i swicth c\u00f3 h\u1ed5 tr\u1ee3 c\u00f4ng ngh\u1ec7\u00a0Power over Ethernet (PoE Switches) \u0111\u1ec3 \u0111\u1ea5u n\u1ed1i v\u1edbi AP. C\u00f4ng ngh\u1ec7 n\u00e0y th\u01b0\u1eddng\u00a0\u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 l\u1eafp \u0111\u1eb7t c\u00e1c AP t\u1ea1i nh\u1eefng v\u1ecb tr\u00ed m\u00e0 \u1edf \u0111\u00f3 kh\u00f3 c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n th\u00f4ng th\u01b0\u1eddng (th\u00f4ng qua Adaptor) cho AP.<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/poe.jpg\")
<\/p>\nC\u00e1ch \u0111\u1ea5u n\u1ed1i AP th\u00f4ng d\u1ee5ng:<\/strong><\/em><\/p>\n
Chia s\u1ebd internet t\u1eeb ISP modem (router)\u00a0ADSL ho\u1eb7c k\u1ebft n\u1ed1i t\u1eeb switch ngu\u1ed3n internet, th\u00f4ng th\u01b0\u1eddng ch\u00fang ra s\u1ebd c\u1eafm c\u00e1p t\u1eeb modem sang AP th\u00f4ng qua c\u1ed5ng internet\/WAN. L\u00fac n\u00e0y AP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ecbnh tuy\u1ebfn, l\u1edbp m\u1ea1ng c\u1ee7a wifi v\u00e0 LAN c\u1ee7a AP kh\u00e1c l\u1edbp v\u1edbi l\u1edbp m\u1ea1ng c\u1ee7a ISP modem \u0111\u1ebfn c\u1ed5ng internet\/WAN.<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/bsconnect.PNG\")
<\/p>\nTrong tr\u01b0\u1eddng h\u1ee3p AP th\u1ee9 nh\u1ea5t (Primary) c\u1ee7a b\u1ea1n b\u1ecb qu\u00e1 t\u1ea3i, b\u1ea1n mu\u1ed1n m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng m\u00e0 v\u1eabn mu\u1ed1n d\u00f9ng chung l\u1edbp m\u1ea1ng v\u1edbi AP th\u1ee9 nh\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea5u n\u1ed1i t\u1eeb c\u1ed5ng LAN c\u1ee7a AP th\u1ee9 nh\u1ea5t qua c\u1ed5ng LAN c\u1ee7a AP th\u1ee9 2 (Secondary). L\u00fac n\u00e0y b\u1ea1n ch\u1ec9nh IP LAN c\u1ee7a AP th\u1ee9 2 v\u1ec1 chung l\u1edbp v\u1edbi LAN c\u1ee7a AP th\u1ee9 nh\u1ea5t. B\u1ea1n c\u00f3 th\u1ec1 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 m\u1edf r\u1ed9ng l\u00ean cho c\u00e1c AP th\u1ee9 3, AP th\u1ee9 4…<\/p>\n
![\"\"](\"https:\/\/img.engisv.info\/Network\/Ethernet_wireless\/AP_connect\/WDS.png\")
<\/p>\nNgo\u00e0i ra, khi b\u1ea1n mu\u1ed1n m\u1edf r\u1ed9ng m\u1ea1ng nhi\u1ec1u AP \u0111\u1ec3 t\u0103ng v\u00f9ng ph\u1ee7 s\u00f3ng v\u00e0 t\u0103ng t\u1ea3i cho h\u1ec7 th\u1ed1ng wifi m\u00e0 v\u1eabn d\u00f9ng chung 1 SSID v\u00e0 Key \u0111\u0103ng nh\u1eadp, b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ebfn m\u1ed9t k\u1ef9 thu\u1eadt g\u1ecdi l\u00e0 WDS (Wireless Distribution System).<\/p>\n","protected":false},"excerpt":{"rendered":"
M\u1ea1ng Wifi ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn t\u1eeb qu\u00e1n c\u00e0 ph\u00ea, kh\u00e1ch s\u1ea1n, c\u00f4ng ty\u2026 v\u00e0 c\u1ea3 trong gia \u0111\u00ecnh, c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i m\u1ea1ng th\u00f4ng qua wifi ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nhi\u1ec1u h\u01a1n nh\u01b0 \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng, m\u00e1y t\u00ednh x\u00e1ch tay, camera, c\u00e1c thi\u1ebft b\u1ecb c\u00f3 \u0111i\u1ec1u khi\u1ec3n th\u00f4ng qua wifi… V\u00ec v\u1eady, t\u00f9y theo m\u1ee9c \u0111\u1ed9 s\u1eed d\u1ee5ng m\u00e0 ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 tri\u1ec3n khai h\u1ec7 th\u1ed1ng wifi cho ph\u00f9 h\u1ee3p. Thi\u1ebft b\u1ecb ph\u00e1t s\u00f3ng Access Point (AP): Ng\u00e0y nay, AP ng\u00e0y c\u00e0ng c\u00f3 gi\u00e1…<\/p>\n","protected":false},"author":2,"featured_media":290,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[24,14],"tags":[71],"class_list":["post-353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ky-nang","category-thu-thuat","tag-wifi"],"yoast_head":"\n
M\u1ea1ng Wifi Ph\u1ea7n 2: Access Point v\u00e0 c\u00e1c c\u1ed5ng th\u00f4ng d\u1ee5ng tr\u00ean Access Point<\/title>\n<meta name=\"description\" content=\"M\u1ea1ng Wifi, Access Point v\u00e0 c\u00e1c c\u1ed5ng th\u00f4ng d\u1ee5ng tr\u00ean Access Point Thi\u1ebft b\u1ecb ph\u00e1t s\u00f3ng Access Point (AP):\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.engisv.info\/?p=353\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"M\u1ea1ng Wifi Ph\u1ea7n 2: Access Point v\u00e0 c\u00e1c c\u1ed5ng th\u00f4ng d\u1ee5ng tr\u00ean Access Point\" \/>\n<meta property=\"og:description\" content=\"M\u1ea1ng Wifi, Access Point v\u00e0 c\u00e1c c\u1ed5ng th\u00f4ng d\u1ee5ng tr\u00ean Access Point Thi\u1ebft b\u1ecb ph\u00e1t s\u00f3ng Access Point (AP):\" \/>\n<meta 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