{"id":478496,"date":"2023-08-09T09:33:49","date_gmt":"2023-08-09T09:33:49","guid":{"rendered":""},"modified":"2023-09-05T11:16:54","modified_gmt":"2023-09-05T11:16:54","slug":"pppoe","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/pppoe\/","title":{"rendered":"PPPoE"},"content":{"rendered":"<p>PPPoE, vi\u1ebft t\u1eaft c\u1ee7a Point-to-Point Protocol over Ethernet, l\u00e0 giao th\u1ee9c m\u1ea1ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 thi\u1ebft l\u1eadp v\u00e0 qu\u1ea3n l\u00fd k\u1ebft n\u1ed1i Internet qua m\u1ea1ng Ethernet. N\u00f3 cho ph\u00e9p truy\u1ec1n c\u00e1c g\u00f3i d\u1eef li\u1ec7u gi\u1eefa thi\u1ebft b\u1ecb kh\u00e1ch v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (ISP) th\u00f4ng qua k\u1ebft n\u1ed1i Ethernet. PPPoE th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111\u01b0\u1eddng d\u00e2y thu\u00ea bao k\u1ef9 thu\u1eadt s\u1ed1 (DSL) v\u00e0 k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng c\u00e1p quang, cung c\u1ea5p ph\u01b0\u01a1ng th\u1ee9c k\u1ebft n\u1ed1i Internet \u0111\u00e1ng tin c\u1eady v\u00e0 an to\u00e0n.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a PPPoE v\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn n\u00f3<\/h2>\n<p>S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a PPPoE c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb gi\u1eefa nh\u1eefng n\u0103m 1990 khi c\u00e1c d\u1ecbch v\u1ee5 internet b\u0103ng th\u00f4ng r\u1ed9ng ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn. Khi nhu c\u1ea7u v\u1ec1 internet t\u1ed1c \u0111\u1ed9 cao t\u0103ng l\u00ean, r\u00f5 r\u00e0ng l\u00e0 c\u00e1c k\u1ebft n\u1ed1i quay s\u1ed1 truy\u1ec1n th\u1ed1ng kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u b\u0103ng th\u00f4ng ng\u00e0y c\u00e0ng t\u0103ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 b\u0103ng th\u00f4ng r\u1ed9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 DSL, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng duy tr\u00ec k\u1ebft n\u1ed1i li\u00ean t\u1ee5c v\u1edbi Internet m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i quay s\u1ed1 m\u1ed7i l\u1ea7n.<\/p>\n<p>Vi\u1ec7c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn PPPoE l\u1ea7n \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 l\u00e0 do UUNET Technologies, m\u1ed9t nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet n\u1ed5i b\u1eadt th\u1eddi k\u1ef3 \u0111\u1ea7u. H\u1ecd gi\u1edbi thi\u1ec7u PPPoE nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thu\u00ea bao s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 DSL v\u1edbi m\u1ea1ng c\u1ee7a h\u1ecd. Giao th\u1ee9c \u0111i\u1ec3m-\u0111i\u1ec3m (PPP) \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u01b0 m\u1ed9t ti\u00eau chu\u1ea9n \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 ISP. Tuy nhi\u00ean, PPP ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp v\u00e0 kh\u00f4ng ph\u00f9 h\u1ee3p l\u1eafm v\u1edbi m\u1ea1ng Ethernet. \u0110\u1ec3 gi\u1ea3i quy\u1ebft h\u1ea1n ch\u1ebf n\u00e0y, c\u00e1c k\u1ef9 s\u01b0 t\u1ea1i UUNET \u0111\u00e3 ph\u00e1t tri\u1ec3n PPPoE, \u0111\u00f3ng g\u00f3i c\u00e1c khung PPP trong c\u00e1c khung Ethernet, gi\u00fap n\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u1ea1ng d\u1ef1a tr\u00ean Ethernet.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 PPPoE: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1 PPPoE<\/h2>\n<p>PPPoE ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u c\u1ee7a m\u00f4 h\u00ecnh OSI v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00e1c nh\u01b0 DSL, modem c\u00e1p v\u00e0 c\u00e1p quang. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p c\u00e1c ch\u1ee9c n\u0103ng x\u00e1c th\u1ef1c, m\u00e3 h\u00f3a v\u00e0 n\u00e9n, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 cho c\u00e1c k\u1ebft n\u1ed1i internet b\u0103ng th\u00f4ng r\u1ed9ng.<\/p>\n<p>Khi thi\u1ebft b\u1ecb kh\u00e1ch b\u1eaft \u0111\u1ea7u k\u1ebft n\u1ed1i PPPoE, n\u00f3 s\u1ebd g\u1eedi y\u00eau c\u1ea7u kh\u00e1m ph\u00e1 t\u1edbi ISP. B\u1ed9 t\u1eadp trung truy c\u1eadp (AC) c\u1ee7a ISP ph\u1ea3n h\u1ed3i b\u1eb1ng ph\u1ea3n h\u1ed3i kh\u00e1m ph\u00e1 v\u00e0 phi\u00ean \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp. Trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i, m\u00e1y kh\u00e1ch s\u1ebd t\u1ef1 x\u00e1c th\u1ef1c v\u1edbi ISP b\u1eb1ng nhi\u1ec1u ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c kh\u00e1c nhau nh\u01b0 PAP (Giao th\u1ee9c x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u) ho\u1eb7c CHAP (Giao th\u1ee9c x\u00e1c th\u1ef1c b\u1eaft tay th\u1eed th\u00e1ch).<\/p>\n<p>Sau khi phi\u00ean PPPoE \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, c\u00e1c khung PPP ch\u1ee9a c\u00e1c g\u00f3i d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c g\u00f3i g\u1ecdn trong c\u00e1c khung Ethernet v\u00e0 \u0111\u01b0\u1ee3c truy\u1ec1n qua m\u1ea1ng Ethernet. Sau \u0111\u00f3, m\u1ea1ng c\u1ee7a ISP s\u1ebd gi\u1ea3i \u0111\u00f3ng g\u00f3i c\u00e1c khung PPP, x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn \u0111\u00edch tr\u00ean internet.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a PPPoE: PPPoE ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>PPPoE bao g\u1ed3m hai th\u00e0nh ph\u1ea7n ch\u00ednh: m\u00e1y kh\u00e1ch PPPoE v\u00e0 m\u00e1y ch\u1ee7 PPPoE. H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n n\u00e0y:<\/p>\n<ol>\n<li>\n<p><strong>\u1ee8ng d\u1ee5ng kh\u00e1ch PPPoE<\/strong>: \u1ee8ng d\u1ee5ng kh\u00e1ch PPPoE th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean thi\u1ebft b\u1ecb c\u1ee7a kh\u00e1ch h\u00e0ng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y t\u00ednh ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. Khi kh\u00e1ch h\u00e0ng mu\u1ed1n thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i internet, n\u00f3 s\u1ebd b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh kh\u00e1m ph\u00e1 PPPoE b\u1eb1ng c\u00e1ch g\u1eedi y\u00eau c\u1ea7u kh\u00e1m ph\u00e1 t\u1edbi ISP.<\/p>\n<\/li>\n<li>\n<p><strong>M\u00e1y ch\u1ee7 PPPoE<\/strong>: M\u00e1y ch\u1ee7 PPPoE, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 B\u1ed9 t\u1eadp trung truy c\u1eadp (AC), n\u1eb1m tr\u00ean m\u1ea1ng c\u1ee7a ISP. Khi m\u00e1y ch\u1ee7 nh\u1eadn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u kh\u00e1m ph\u00e1 t\u1eeb m\u00e1y kh\u00e1ch, n\u00f3 s\u1ebd ph\u1ea3n h\u1ed3i b\u1eb1ng ph\u1ea3n h\u1ed3i kh\u00e1m ph\u00e1, cung c\u1ea5p th\u00f4ng tin c\u1ea7n thi\u1ebft \u0111\u1ec3 thi\u1ebft l\u1eadp phi\u00ean PPPoE.<\/p>\n<\/li>\n<li>\n<p><strong>Qu\u00e1 tr\u00ecnh kh\u00e1m ph\u00e1<\/strong>: Qu\u00e1 tr\u00ecnh kh\u00e1m ph\u00e1 PPPoE bao g\u1ed3m hai giai \u0111o\u1ea1n \u2013 B\u1eaft \u0111\u1ea7u kh\u00e1m ph\u00e1 ch\u1ee7 \u0111\u1ed9ng (ADI) v\u00e0 \u01afu \u0111\u00e3i kh\u00e1m ph\u00e1 ch\u1ee7 \u0111\u1ed9ng (ADO). Trong ADI, m\u00e1y kh\u00e1ch g\u1eedi y\u00eau c\u1ea7u kh\u00e1m ph\u00e1 \u0111\u1ebfn m\u00e1y ch\u1ee7. M\u00e1y ch\u1ee7 ph\u1ea3n h\u1ed3i b\u1eb1ng g\u00f3i ADO ch\u1ee9a t\u00ean d\u1ecbch v\u1ee5 v\u00e0 c\u00e1c tham s\u1ed1 kh\u00e1c c\u1ea7n thi\u1ebft cho vi\u1ec7c thi\u1ebft l\u1eadp phi\u00ean.<\/p>\n<\/li>\n<li>\n<p><strong>Thi\u1ebft l\u1eadp phi\u00ean<\/strong>: Sau qu\u00e1 tr\u00ecnh kh\u00e1m ph\u00e1, m\u00e1y kh\u00e1ch v\u00e0 m\u00e1y ch\u1ee7 trao \u0111\u1ed5i c\u00e1c g\u00f3i phi\u00ean PPPoE \u0111\u1ec3 x\u00e1c th\u1ef1c v\u00e0 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i. Vi\u1ec7c x\u00e1c th\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, bao g\u1ed3m PAP ho\u1eb7c CHAP.<\/p>\n<\/li>\n<li>\n<p><strong>Truy\u1ec1n d\u1eef li\u1ec7u<\/strong>: Sau khi phi\u00ean \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp, m\u00e1y kh\u00e1ch PPPoE s\u1ebd \u0111\u00f3ng g\u00f3i c\u00e1c khung PPP ch\u1ee9a c\u00e1c g\u00f3i d\u1eef li\u1ec7u trong khung Ethernet v\u00e0 g\u1eedi ch\u00fang \u0111\u1ebfn m\u00e1y ch\u1ee7 PPPoE. M\u00e1y ch\u1ee7 gi\u1ea3i n\u00e9n c\u00e1c khung, x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 chuy\u1ec3n ti\u1ebfp n\u00f3 \u0111\u1ebfn \u0111\u00edch tr\u00ean internet.<\/p>\n<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a PPPoE<\/h2>\n<p>PPPoE cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho k\u1ebft n\u1ed1i internet:<\/p>\n<ol>\n<li>\n<p><strong>X\u00e1c th\u1ef1c<\/strong>: PPPoE cung c\u1ea5p c\u00e1c c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c m\u1ea1nh m\u1ebd, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u1ec9 nh\u1eefng kh\u00e1ch h\u00e0ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n m\u1edbi c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o m\u1ea1ng c\u1ee7a ISP. \u0110i\u1ec1u n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0 b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n.<\/p>\n<\/li>\n<li>\n<p><strong>M\u00e3 h\u00f3a<\/strong>: PPPoE h\u1ed7 tr\u1ee3 m\u00e3 h\u00f3a, \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n gi\u1eefa m\u00e1y kh\u00e1ch v\u00e0 ISP v\u1eabn an to\u00e0n v\u00e0 b\u00ed m\u1eadt. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi th\u00f4ng tin nh\u1ea1y c\u1ea3m \u0111\u01b0\u1ee3c trao \u0111\u1ed5i qua internet.<\/p>\n<\/li>\n<li>\n<p><strong>Qu\u1ea3n l\u00fd b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3<\/strong>: PPPoE cho ph\u00e9p ISP qu\u1ea3n l\u00fd b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3 b\u1eb1ng c\u00e1ch ch\u1ec9 \u0111\u1ecbnh c\u00e1c phi\u00ean d\u00e0nh ri\u00eang cho t\u1eebng m\u00e1y kh\u00e1ch. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i kh\u00e1ch h\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 Internet \u0111\u00e3 h\u1ee9a v\u00e0 ng\u0103n ch\u1eb7n vi\u1ec7c m\u1ed9t ng\u01b0\u1eddi d\u00f9ng \u0111\u1ed9c chi\u1ebfm t\u00e0i nguy\u00ean c\u1ee7a m\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>Uy\u1ec3n chuy\u1ec3n<\/strong>: PPPoE c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi nhi\u1ec1u c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00e1c nhau, bao g\u1ed3m DSL, modem c\u00e1p v\u00e0 c\u00e1p quang. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a n\u00f3 v\u1edbi c\u00e1c lo\u1ea1i m\u1ea1ng kh\u00e1c nhau khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p linh ho\u1ea1t cho c\u00e1c ISP.<\/p>\n<\/li>\n<li>\n<p><strong>D\u1ec5 tri\u1ec3n khai<\/strong>: Vi\u1ec7c tri\u1ec3n khai PPPoE t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, gi\u00fap c\u1ea3 ISP l\u1edbn v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 nh\u1ecf h\u01a1n \u0111\u1ec1u c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i PPPoE<\/h2>\n<p>PPPoE c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean ph\u01b0\u01a1ng th\u1ee9c x\u00e1c th\u1ef1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i. Hai lo\u1ea1i PPPoE ch\u00ednh l\u00e0:<\/p>\n<ol>\n<li>\n<p><strong>PPPoE v\u1edbi PAP<\/strong>: Trong lo\u1ea1i n\u00e0y, Giao th\u1ee9c x\u00e1c th\u1ef1c m\u1eadt kh\u1ea9u (PAP) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c. M\u00e1y kh\u00e1ch g\u1eedi t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n r\u00f5 r\u00e0ng \u0111\u1ebfn m\u00e1y ch\u1ee7 trong qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c.<\/p>\n<\/li>\n<li>\n<p><strong>PPPoE v\u1edbi CHAP<\/strong>: Giao th\u1ee9c x\u00e1c th\u1ef1c b\u1eaft tay th\u1eed th\u00e1ch (CHAP) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u00e1c th\u1ef1c lo\u1ea1i n\u00e0y. CHAP cung c\u1ea5p t\u00ednh b\u1ea3o m\u1eadt cao h\u01a1n so v\u1edbi PAP v\u00ec n\u00f3 kh\u00f4ng truy\u1ec1n m\u1eadt kh\u1ea9u \u1edf d\u1ea1ng v\u0103n b\u1ea3n r\u00f5 r\u00e0ng. Thay v\u00e0o \u0111\u00f3, n\u00f3 s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf ph\u1ea3n h\u1ed3i th\u1eed th\u00e1ch \u0111\u1ec3 x\u00e1c minh danh t\u00ednh c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n<\/li>\n<\/ol>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng so s\u00e1nh gi\u1eefa PAP v\u00e0 CHAP:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Ph\u01b0\u01a1ng ph\u00e1p x\u00e1c th\u1ef1c<\/strong><\/th>\n<th><strong>Thu\u1eadn l\u1ee3i<\/strong><\/th>\n<th><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PAP<\/td>\n<td>\u2013 \u0110\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 th\u1ef1c hi\u1ec7n.<\/td>\n<td>\u2013 M\u1eadt kh\u1ea9u \u0111\u01b0\u1ee3c truy\u1ec1n d\u01b0\u1edbi d\u1ea1ng v\u0103n b\u1ea3n r\u00f5 r\u00e0ng.<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 \u0110\u01b0\u1ee3c h\u1ed7 tr\u1ee3 r\u1ed9ng r\u00e3i b\u1edfi nhi\u1ec1u h\u1ec7 th\u1ed1ng kh\u00e1c nhau.<\/td>\n<td>\u2013 T\u00ednh b\u1ea3o m\u1eadt th\u1ea5p h\u01a1n so v\u1edbi CHAP.<\/td>\n<\/tr>\n<tr>\n<td>CHAP<\/td>\n<td>\u2013 B\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd h\u01a1n v\u1edbi m\u1eadt kh\u1ea9u b\u0103m.<\/td>\n<td>\u2013 Vi\u1ec7c th\u1ef1c hi\u1ec7n ph\u1ee9c t\u1ea1p h\u01a1n m\u1ed9t ch\u00fat.<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 Kh\u00f4ng truy\u1ec1n m\u1eadt kh\u1ea9u \u1edf d\u1ea1ng v\u0103n b\u1ea3n r\u00f5 r\u00e0ng.<\/td>\n<td>\u2013 C\u00f3 th\u1ec3 y\u00eau c\u1ea7u nhi\u1ec1u s\u1ee9c m\u1ea1nh x\u1eed l\u00fd h\u01a1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng PPPoE, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<p>PPPoE ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i internet trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng kh\u00e1c nhau:<\/p>\n<ol>\n<li>\n<p><strong>B\u0103ng th\u00f4ng r\u1ed9ng t\u1ea1i nh\u00e0<\/strong>: Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng gia \u0111\u00ecnh c\u00f3 k\u1ebft n\u1ed1i DSL ho\u1eb7c c\u00e1p quang s\u1eed d\u1ee5ng PPPoE \u0111\u1ec3 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb c\u1ee7a h\u1ecd v\u1edbi m\u1ea1ng ISP c\u1ee7a h\u1ecd. B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c modem ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u00e1y kh\u00e1ch PPPoE, qu\u1ea3n l\u00fd vi\u1ec7c x\u00e1c th\u1ef1c v\u00e0 thi\u1ebft l\u1eadp phi\u00ean thay m\u1eb7t cho c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ea1ng doanh nghi\u1ec7p<\/strong>: M\u1ed9t s\u1ed1 t\u1ed5 ch\u1ee9c l\u1edbn s\u1eed d\u1ee5ng PPPoE cho m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a h\u1ecd \u0111\u1ec3 qu\u1ea3n l\u00fd quy\u1ec1n truy c\u1eadp internet an to\u00e0n cho nh\u00e2n vi\u00ean. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p h\u1ecd ki\u1ec3m so\u00e1t v\u00e0 gi\u00e1m s\u00e1t vi\u1ec7c s\u1eed d\u1ee5ng internet m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n<li>\n<p><strong>Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP)<\/strong>: ISP s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i PPPoE \u0111\u1ec3 cung c\u1ea5p k\u1ebft n\u1ed1i Internet cho kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd. PPPoE cho ph\u00e9p h\u1ecd qu\u1ea3n l\u00fd t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng, ph\u00e2n b\u1ed5 b\u0103ng th\u00f4ng v\u00e0 \u0111\u1ea3m b\u1ea3o quy\u1ec1n truy c\u1eadp an to\u00e0n v\u00e0o m\u1ea1ng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n<\/ol>\n<p>B\u00ean c\u1ea1nh nh\u1eefng l\u1ee3i \u00edch c\u1ee7a n\u00f3, PPPoE c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 nh\u1ea5t \u0111\u1ecbnh, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li>\n<p><strong>Gi\u1ea3m k\u1ebft n\u1ed1i<\/strong>: K\u1ebft n\u1ed1i PPPoE \u0111\u00f4i khi c\u00f3 th\u1ec3 b\u1ecb r\u1edbt do nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau, bao g\u1ed3m c\u1ea3 s\u1ef1 m\u1ea5t \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n ho\u1eb7c c\u00e1c s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn ISP. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c truy c\u1eadp internet b\u1ecb gi\u00e1n \u0111o\u1ea1n cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<li>\n<p><strong>Hi\u1ec7u su\u1ea5t ch\u1eadm<\/strong>: N\u1ebfu m\u00e1y ch\u1ee7 PPPoE c\u1ee7a ISP b\u1ecb qu\u00e1 t\u1ea3i v\u1edbi nhi\u1ec1u phi\u00ean m\u00e1y kh\u00e1ch, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 Internet v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u ch\u1eadm h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ed1i quan t\u00e2m v\u1ec1 b\u1ea3o m\u1eadt<\/strong>: M\u1eb7c d\u00f9 PPPoE cung c\u1ea5p m\u00e3 h\u00f3a v\u00e0 x\u00e1c th\u1ef1c nh\u01b0ng n\u00f3 kh\u00f4ng tr\u00e1nh kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u1ea3o m\u1eadt. V\u00ed d\u1ee5: c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng b\u1ea1o l\u1ef1c v\u00e0o m\u1eadt kh\u1ea9u y\u1ebfu c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a k\u1ebft n\u1ed1i.<\/p>\n<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, ng\u01b0\u1eddi d\u00f9ng v\u00e0 ISP c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c gi\u1ea3i ph\u00e1p sau:<\/p>\n<ul>\n<li>\n<p><strong>B\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean<\/strong>: ISP n\u00ean th\u1ef1c hi\u1ec7n b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a m\u00ecnh \u0111\u1ec3 gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng m\u1ea5t k\u1ebft n\u1ed1i v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3.<\/p>\n<\/li>\n<li>\n<p><strong>C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: Vi\u1ec7c tri\u1ec3n khai c\u01a1 ch\u1ebf c\u00e2n b\u1eb1ng t\u1ea3i c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean c\u00e1c m\u00e1y ch\u1ee7 PPPoE, ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>X\u00e1c th\u1ef1c m\u1ea1nh m\u1ebd<\/strong>: Khuy\u1ebfn kh\u00edch ng\u01b0\u1eddi d\u00f9ng ch\u1ecdn m\u1eadt kh\u1ea9u m\u1ea1nh v\u00e0 s\u1eed d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt b\u1ed5 sung nh\u01b0 X\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (2FA) c\u00f3 th\u1ec3 n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a c\u00e1c k\u1ebft n\u1ed1i PPPoE.<\/p>\n<\/li>\n<\/ul>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>H\u00e3y so s\u00e1nh PPPoE v\u1edbi c\u00e1c giao th\u1ee9c m\u1ea1ng kh\u00e1c \u0111\u1ec3 hi\u1ec3u c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Giao th\u1ee9c<\/strong><\/th>\n<th><strong>\u0110\u1eb7c tr\u01b0ng<\/strong><\/th>\n<th><strong>So s\u00e1nh<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>PPP (Giao th\u1ee9c \u0111i\u1ec3m-\u0111i\u1ec3m)<\/td>\n<td>\u2013 Ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp.<\/td>\n<td>\u2013 PPPoE l\u00e0 m\u1ed9t ph\u1ea7n m\u1edf r\u1ed9ng c\u1ee7a PPP \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng qua m\u1ea1ng Ethernet.<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 H\u1ed7 tr\u1ee3 x\u00e1c th\u1ef1c, m\u00e3 h\u00f3a v\u00e0 n\u00e9n.<\/td>\n<td>\u2013 PPPoE cung c\u1ea5p th\u00eam c\u00e1c t\u00ednh n\u0103ng ph\u00f9 h\u1ee3p cho k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng r\u1ed9ng.<\/td>\n<\/tr>\n<tr>\n<td>Ethernet<\/td>\n<td>\u2013 \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ti\u00eau chu\u1ea9n cho k\u1ebft n\u1ed1i m\u1ea1ng c\u00f3 d\u00e2y.<\/td>\n<td>\u2013 PPPoE \u0111\u00f3ng g\u00f3i c\u00e1c khung PPP trong khung Ethernet.<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 Ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u c\u1ee7a m\u00f4 h\u00ecnh OSI.<\/td>\n<td>\u2013 PPPoE ho\u1ea1t \u0111\u1ed9ng qua Ethernet \u1edf c\u00f9ng m\u1ed9t l\u1edbp.<\/td>\n<\/tr>\n<tr>\n<td>DHCP (Giao th\u1ee9c c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 \u0111\u1ed9ng)<\/td>\n<td>\u2013 \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u00e1n \u0111\u1ecba ch\u1ec9 IP t\u1ef1 \u0111\u1ed9ng.<\/td>\n<td>\u2013 PPPoE cung c\u1ea5p k\u1ebft n\u1ed1i v\u00e0 DHCP ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 IP sau khi thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i.<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>\u2013 Ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp \u1ee9ng d\u1ee5ng c\u1ee7a m\u00f4 h\u00ecnh OSI.<\/td>\n<td>\u2013 PPPoE ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u, b\u1ed5 sung cho DHCP.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Tri\u1ec3n v\u1ecdng v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn PPPoE<\/h2>\n<p>Khi c\u00f4ng ngh\u1ec7 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, t\u01b0\u01a1ng lai c\u1ee7a PPPoE c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng b\u01b0\u1edbc ph\u00e1t tri\u1ec3n sau:<\/p>\n<ol>\n<li>\n<p><strong>\u00c1p d\u1ee5ng IPv6<\/strong>: Vi\u1ec7c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i IPv6 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn PPPoE v\u00ec n\u00f3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 c\u1ea1n ki\u1ec7t \u0111\u1ecba ch\u1ec9 IPv4. PPPoE c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 h\u1ed7 tr\u1ee3 vi\u1ec7c \u0111\u00e1nh \u0111\u1ecba ch\u1ec9 IPv6, \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i su\u00f4n s\u1ebb sang giao th\u1ee9c m\u1edbi.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o m\u1eadt n\u00e2ng cao<\/strong>: Khi c\u00e1c m\u1ed1i \u0111e d\u1ecda tr\u00ean m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, PPPoE c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p x\u00e1c th\u1ef1c v\u00e0 m\u00e3 h\u00f3a m\u1ea1nh m\u1ebd h\u01a1n n\u1eefa \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt n\u00e2ng cao cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<li>\n<p><strong>T\u00edch h\u1ee3p v\u1edbi SDN v\u00e0 NFV<\/strong>: M\u1ea1ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u1ea7n m\u1ec1m (SDN) v\u00e0 \u1ea2o h\u00f3a ch\u1ee9c n\u0103ng m\u1ea1ng (NFV) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1eadn d\u1ee5ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a v\u00e0 qu\u1ea3n l\u00fd c\u00e1c k\u1ebft n\u1ed1i PPPoE hi\u1ec7u qu\u1ea3 h\u01a1n, cho ph\u00e9p ki\u1ec3m so\u00e1t v\u00e0 t\u00f9y ch\u1ec9nh t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi PPPoE<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong b\u1ed1i c\u1ea3nh k\u1ebft n\u1ed1i PPPoE. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft v\u1edbi PPPoE:<\/p>\n<ol>\n<li>\n<p><strong>T\u1ed1i \u01b0u h\u00f3a b\u0103ng th\u00f4ng<\/strong>: ISP c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m n\u1ed9i dung ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m t\u1ea3i cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng PPPoE v\u00e0 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1ecdc n\u1ed9i dung<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c ch\u00ednh s\u00e1ch l\u1ecdc n\u1ed9i dung \u0111\u1ec3 ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp internet cho c\u00e1c m\u00e1y kh\u00e1ch PPPoE. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c m\u1ea1ng c\u00f4ng ty \u0111\u1ec3 th\u1ef1c thi c\u00e1c ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt v\u00e0 s\u1eed d\u1ee5ng.<\/p>\n<\/li>\n<li>\n<p><strong>\u1ea8n danh v\u00e0 quy\u1ec1n ri\u00eang t\u01b0<\/strong>: Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y ch\u1ee7 proxy tr\u01b0\u1edbc khi thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i PPPoE, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap n\u00e2ng cao t\u00ednh \u1ea9n danh v\u00e0 b\u1ea3o v\u1ec7 quy\u1ec1n ri\u00eang t\u01b0 tr\u1ef1c tuy\u1ebfn c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110i\u1ec1u khi\u1ec3n giao th\u00f4ng<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp internet cho m\u00e1y kh\u00e1ch PPPoE, cho ph\u00e9p \u0111\u1ecbnh h\u00ecnh l\u01b0u l\u01b0\u1ee3ng v\u00e0 qu\u1ea3n l\u00fd b\u0103ng th\u00f4ng t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 PPPoE, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc2516\" target=\"_new\" rel=\"noopener nofollow\">RFC 2516 \u2013 Ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n PPP qua Ethernet (PPPoE)<\/a><\/li>\n<li><a href=\"https:\/\/www.broadband-forum.org\/technical\/download\/TR-068.pdf\" target=\"_new\" rel=\"noopener nofollow\">B\u00e1o c\u00e1o k\u1ef9 thu\u1eadt c\u1ee7a di\u1ec5n \u0111\u00e0n DSL: TR-068 \u2013 PPP over Ethernet (PPPoE) M\u00f4 t\u1ea3<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/broadband-access\/aggregation-services-router-7200\/14170-understanding-pppoe-and-pppoa.html\" target=\"_new\" rel=\"noopener nofollow\">Hi\u1ec3u v\u1ec1 PPPoE v\u00e0 PPPoA<\/a><\/li>\n<\/ol>\n<p>B\u1eb1ng c\u00e1ch kh\u00e1m ph\u00e1 c\u00e1c li\u00ean k\u1ebft n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt v\u00e0 c\u00e1ch tri\u1ec3n khai th\u1ef1c t\u1ebf c\u1ee7a PPPoE.<\/p>","protected":false},"featured_media":478497,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478496","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>PPPoE: Point-to-Point Protocol over Ethernet<\/mark>","faq_items":[{"question":"What is PPPoE?","answer":"<p>PPPoE stands for Point-to-Point Protocol over Ethernet. It is a network protocol used to establish and manage internet connections over Ethernet networks. PPPoE is commonly used in DSL and fiber optic broadband connections, providing a secure and reliable method of connecting to the internet.<\/p>"},{"question":"How did PPPoE originate?","answer":"<p>PPPoE was developed in the mid-1990s to meet the growing demand for high-speed internet connections. UUNET Technologies, an early internet service provider, introduced PPPoE as a solution to connect subscribers using DSL technology to their network. It encapsulates PPP frames within Ethernet frames, making it compatible with Ethernet-based networks.<\/p>"},{"question":"How does PPPoE work?","answer":"<p>PPPoE operates at the data link layer of the OSI model. When a client device wants to establish an internet connection, it sends out a discovery request to the ISP. The ISP's access concentrator responds with a discovery response, and a session is established. The client then authenticates itself with the ISP, and data packets are transmitted over the Ethernet network.<\/p>"},{"question":"What are the key features of PPPoE?","answer":"<p>PPPoE offers authentication, encryption, and compression functionalities, ensuring secure and efficient internet connections. It allows ISPs to manage bandwidth efficiently, provides flexibility with various network technologies, and is easy to deploy.<\/p>"},{"question":"What types of PPPoE exist?","answer":"<p>PPPoE can be categorized based on the authentication method used during the connection setup. The two main types are PPPoE with PAP (Password Authentication Protocol) and PPPoE with CHAP (Challenge Handshake Authentication Protocol).<\/p>"},{"question":"How can PPPoE connection issues be resolved?","answer":"<p>Common PPPoE connection issues include drops and slow performance. Regular network maintenance, load balancing, and strong authentication methods can help address these problems and enhance the overall user experience.<\/p>"},{"question":"How is PPPoE related to proxy servers?","answer":"<p>Proxy servers can complement PPPoE connections by optimizing bandwidth, implementing content filtering, enhancing anonymity and privacy, and enabling better traffic control for users.<\/p>"},{"question":"What are the future perspectives of PPPoE?","answer":"<p>The future of PPPoE may involve adopting IPv6, enhancing security measures, and integrating with SDN and NFV technologies to optimize and manage connections more efficiently.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478496","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\/478496\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/478497"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=478496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}