![\"\"](\"https:http:\/\/aws.vacif.com\/wp-content\/uploads\/sites\/3\/2022\/09\/image-26.png\")
<\/figure>\n<\/div>\n\n\n1.Modem s\u1ebd gi\u00fap b\u1ea1n k\u1ebft n\u1ed1i v\u1edbi Internet.<\/strong><\/p>\n\n\n\n Modem ch\u00ednh x\u00e1c l\u00e0 m\u1ed9t c\u00e1nh c\u1ed5ng \u0111\u1ec3 b\u1ea1n k\u1ebft n\u1ed1i v\u1edbi Internet, \u0111\u00f3 c\u00f3 th\u1ec3 m\u1ed9t \u0111\u01b0\u1eddng d\u00e2y c\u00e1p m\u1ea1ng, c\u00e1p quang, \u0111\u01b0\u1ee3c k\u00e9o \u0111\u1ebfn nh\u00e0 c\u1ee7a b\u1ea1n v\u00e0 s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi modem \u0111\u1ea7u ti\u00ean. Modem s\u1ebd chuy\u1ec3n c\u00e1c bit 1 v\u00e0 0 d\u1eef li\u1ec7u t\u1eeb m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n th\u00e0nh th\u00f4ng tin t\u01b0\u01a1ng t\u1ef1 \u0111\u1ec3 c\u00e1p m\u1ea1ng ho\u1eb7c c\u00e1p quang truy\u1ec1n ra th\u1ebf gi\u1edbi, \u0111\u1ed3ng th\u1eddi chuy\u1ec3n \u0111\u1ed5i c\u00e1c t\u00edn hi\u1ec7u \u0111\u1ebfn theo c\u00e1ch t\u01b0\u01a1ng t\u1ef1. Ch\u1ee9c n\u0103ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf (Modulation v\u00e0 Demodulation) v\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 “mo-dem”.<\/p>\n\n\n Th\u00f4ng th\u01b0\u1eddng, c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (ISP) s\u1ebd cung c\u1ea5p cho b\u1ea1n m\u1ed9t modem trong g\u00f3i l\u1eafp \u0111\u1eb7t. Tuy nhi\u00ean, t\u00f9y thu\u1ed9c v\u00e0o ISP b\u1ea1n s\u1eed d\u1ee5ng, b\u1ea1n c\u00f3 th\u1ec3 mua thi\u1ebft b\u1ecb modem c\u1ee7a ri\u00eang m\u00ecnh.<\/p>\n\n\n\n 2. Router k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb v\u1edbi Modem<\/strong><\/p>\n\n\n\n Gi\u1ea3 s\u1eed n\u1ebfu b\u1ea1n ch\u1ec9 c\u00f3 m\u1ed9t m\u00e1y t\u00ednh trong nh\u00e0, b\u1ea1n c\u00f3 th\u1ec3 c\u1eafm n\u00f3 th\u1eb3ng v\u00e0o modem b\u1eb1ng c\u00e1p Ethernet v\u00e0 m\u00e1y t\u00ednh s\u1ebd \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi Internet ngay l\u1eadp t\u1ee9c. Nh\u01b0ng h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u c\u00f3 nhi\u1ec1u h\u01a1n m\u1ed9t m\u00e1y t\u00ednh, nh\u1ea5t l\u00e0 trong c\u00e1c t\u1ed5 ch\u1ee9c doanh nghi\u1ec7p, ch\u01b0a k\u1ec3 \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00e1y t\u00ednh b\u1ea3ng v\u00e0 m\u1ed9t lo\u1ea1t c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c.<\/p>\n\n\n C\u00e1c modem kh\u00f4ng th\u1ec3 g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn nhi\u1ec1u thi\u1ebft b\u1ecb \u0111\u1ed3ng th\u1eddi. Ch\u00fang th\u01b0\u1eddng ch\u1ec9 c\u00f3 v\u00e0i c\u1ed5ng Ethernet v\u00e0 ch\u1ec9 t\u1ea1o ra m\u1ed9t \u0111\u1ecba ch\u1ec9 IP, x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n v\u1edbi internet (gi\u1ed1ng nh\u01b0 \u0111\u1ecba ch\u1ec9 nh\u00e0 c\u1ee7a b\u1ea1n trong th\u1ebf gi\u1edbi th\u1ef1c). Router s\u1ebd k\u1ebft n\u1ed1i t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n v\u1edbi nhau th\u00f4ng qua c\u00e1p Ethernet ho\u1eb7c Wi-Fi r\u1ed3i k\u1ebft n\u1ed1i v\u1edbi modem. Router s\u1ebd cung c\u1ea5p cho m\u1ed7i thi\u1ebft b\u1ecb m\u1ed9t \u0111\u1ecba ch\u1ec9 IP n\u1ed9i b\u1ed9 c\u1ee7a ri\u00eang n\u00f3, \u0111\u1ecba ch\u1ec9 n\u00e0y s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ecbnh tuy\u1ebfn traffic gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n\n\n\n V\u00ed d\u1ee5: N\u1ebfu \u0111\u1ecba ch\u1ec9 IP c\u1ee7a modem gi\u1ed1ng nh\u01b0 \u0111\u1ecba ch\u1ec9 c\u1ee7a m\u1ed9t t\u00f2a nh\u00e0, th\u00ec \u0111\u1ecba ch\u1ec9 IP n\u1ed9i b\u1ed9 c\u1ee7a router gi\u1ed1ng nh\u01b0 s\u1ed1 c\u0103n h\u1ed9. Modem nh\u1eadn th\u00f4ng tin t\u1eeb internet, g\u1eedi \u0111\u1ebfn router v\u00e0 router s\u1ebd g\u1eedi th\u00f4ng tin \u0111\u1ebfn m\u00e1y t\u00ednh \u0111\u00e3 y\u00eau c\u1ea7u.<\/p>\n\n\n\n M\u1ea1ng do router t\u1ea1o ra \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ea1ng c\u1ee5c b\u1ed9 (Local Area Network \u2013 LAN) v\u00e0 n\u00f3 k\u1ebft n\u1ed1i b\u1ea1n v\u1edbi m\u1ea1ng di\u1ec7n r\u1ed9ng l\u1edbn h\u01a1n (Wide Area Network-WAN). Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c router \u0111\u1ec1u c\u00f3 Wi-Fi, v\u00ec m\u1ed9t s\u1ed1 router ch\u1ec9 k\u1ebft n\u1ed1i m\u00e1y t\u00ednh b\u1eb1ng c\u00e1p Ethernet.<\/p>\n\n\n\n 3. Access Point \u2013 K\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y<\/strong><\/p>\n\n\n\n \u0110\u00e3 c\u00f3 m\u1ed9t th\u1eddi gian, t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y t\u00ednh k\u1ebft n\u1ed1i v\u1edbi internet \u0111\u1ec1u th\u00f4ng qua m\u1ed9t c\u00e1p m\u1ea1ng, \u0111i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c k\u1ebft n\u1ed1i qu\u00e1 nhi\u1ec1u d\u00e2y nh\u1ee3, kh\u00f3 qu\u1ea3n l\u00fd v\u00e0 x\u1eed l\u00fd l\u1ed7i. Tuy nhi\u00ean, ng\u00e0y nay h\u1ec1u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb th\u00f4ng minh \u0111\u00e3 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p t\u00ednh n\u0103ng truy c\u1eadp Internet th\u00f4ng qua Wifi. \u0110\u1ec3 nhi\u1ec1u thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 c\u00f9ng l\u00fac truy c\u1eadp internet h\u01a1n, b\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t thi\u1ebft b\u1ecb g\u00ec \u0111\u00f3 \u0111\u1ec3 c\u00f3 th\u1ec3 ph\u00e1t t\u00edn hi\u1ec7u kh\u00f4ng d\u00e2y, \u0111\u00f3 l\u00e0 Access Point.<\/p>\n\n\n Wireless access point s\u1ebd k\u1ebft n\u1ed1i v\u1edbi router, th\u01b0\u1eddng qua c\u00e1p Ethernet v\u00e0 giao ti\u1ebfp v\u1edbi c\u00e1c thi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 c\u1ed5ng k\u1ebft n\u1ed1i Ethernet qua t\u1ea7n s\u1ed1 kh\u00f4ng d\u00e2y. H\u1ea7u h\u1ebft ng\u01b0\u1eddi d\u00f9ng internet \u0111\u1ec1u c\u00f3 router \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n wireless access point, nh\u01b0ng c\u00e1c standalone access points v\u1eabn ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p, v\u00ec b\u1ea1n c\u00f3 th\u1ec3 gh\u00e9p n\u1ed1i nhi\u1ec1u access points v\u1edbi nhau \u0111\u1ec3 m\u1edf r\u1ed9ng m\u1ea1ng c\u1ee7a m\u00ecnh tr\u00ean m\u1ed9t khu v\u1ef1c r\u1ed9ng l\u1edbn.<\/p>\n\n\n\n G\u1ea7n \u0111\u00e2y, v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a t\u00ednh n\u0103ng \u201cmesh network\u201d \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong Access Point \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u00f4i khu v\u1ef1c l\u1edbn h\u01a1n v\u1edbi nhi\u1ec1u \u0111i\u1ec3m ch\u1ebft, v\u00ec ch\u00fang cho ph\u00e9p nhi\u1ec1u thi\u1ebft b\u1ecb ph\u1ee7 s\u00f3ng Wi-Fi hi\u1ec7u qu\u1ea3 h\u01a1n. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u00e1c wireless access point n\u1ebfu b\u1ea1n \u0111\u00e3 c\u00f3 router ho\u1eb7c c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ea3m nh\u1eadn c\u00f4ng vi\u1ec7c c\u1ee7a router, m\u1eb7c d\u00f9 th\u01b0\u1eddng c\u00f3 \u00edt t\u00ednh n\u0103ng n\u00e2ng cao h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":" Trong m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng b\u1ea1n c\u00f3 th\u1ec3 nghe r\u1ea5t nhi\u1ec1u v\u1ec1 c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 Access Point, Modem v\u00e0 Router, c\u00f3 th\u1ec3 b\u1edfi v\u00ec c\u00e1c thi\u1ebft b\u1ecb tr\u00ean c\u00f3 c\u00e1c ch\u1ee9c n\u0103ng nh\u01b0 nhau n\u00ean b\u1ea1n nh\u1ea7m t\u01b0\u1edfng c\u00e1c thi\u1ebft b\u1ecb tr\u00ean l\u00e0 m\u1ed9t, nh\u01b0ng th\u1eadt s\u1ef1 c\u00e1c thi\u1ebft b\u1ecb tr\u00ean \u0111\u1ec1u \u0111\u00f3ng 1 […]<\/p>\n","protected":false},"author":2,"featured_media":610,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[80,27],"tags":[25,29,30,31,32],"class_list":["post-602","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-huong-dan-tai-lieu","category-mang-va-may-chu","tag-access-point","tag-modem","tag-modem-va-router","tag-phan-biet-giua-access-point","tag-router","entry","has-media"],"_links":{"self":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/comments?post=602"}],"version-history":[{"count":1,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/602\/revisions"}],"predecessor-version":[{"id":10064,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/posts\/602\/revisions\/10064"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/media\/610"}],"wp:attachment":[{"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/media?parent=602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/categories?post=602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vacif.com\/en\/wp-json\/wp\/v2\/tags?post=602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:http:\/\/aws.vacif.com\/wp-content\/uploads\/sites\/3\/2022\/09\/image-27.png\")
<\/figure>\n<\/div>\n\n\n![\"\"](\"https:http:\/\/aws.vacif.com\/wp-content\/uploads\/sites\/3\/2022\/09\/image-28.png\")
<\/figure>\n<\/div>\n\n\n![\"\"](\"https:http:\/\/aws.vacif.com\/wp-content\/uploads\/sites\/3\/2022\/09\/image-29.png\")
<\/figure>\n<\/div>\n\n\n