{"id":1159,"date":"2012-11-19T11:21:53","date_gmt":"2012-11-19T13:21:53","guid":{"rendered":"http:\/\/efagundes.com\/openclass_networking\/?page_id=1159"},"modified":"2022-01-16T17:52:33","modified_gmt":"2022-01-16T20:52:33","slug":"roteamento-avancado","status":"publish","type":"page","link":"https:\/\/efagundes.com\/networking\/protocolos-tcpip\/roteamento-avancado\/","title":{"rendered":"Roteamento avan\u00e7ado"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2680\" data-permalink=\"https:\/\/efagundes.com\/networking\/protocolos-tcpip\/roteamento-avancado\/slide241\/\" data-orig-file=\"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png?fit=960%2C720&amp;ssl=1\" data-orig-size=\"960,720\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Slide241\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png?fit=960%2C720&amp;ssl=1\" class=\"alignnone size-full wp-image-2680\" src=\"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png?resize=960%2C720\" alt=\"Slide241\" width=\"960\" height=\"720\" srcset=\"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide241.png?resize=300%2C225&amp;ssl=1 300w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/a><\/p>\n<p>Ao montar cada n\u00f3 com seu endere\u00e7o IP, a m\u00e1scara de sub-rede IP (netmask) tamb\u00e9m devem ser especificada.<\/p>\n<p>Esta m\u00e1scara \u00e9 usada para especificar qual parte do endere\u00e7o \u00e9 a parte de n\u00famero de rede, e que \u00e9 a parte de host. Isto \u00e9 realizado por um l\u00f3gico bitwise-AND entre o netmask e o endere\u00e7o de IP. O resultado especifica o n\u00famero de rede. Para Classe C, o netmask sempre ser\u00e1 255.255.255.0; para Classe B, o netmask sempre ser\u00e3o 255.255.0.0; e assim por diante. Quando A enviou um pacote a E no \u00faltimo exemplo, A soube que E n\u00e3o estava em seu segmento de rede comparando rede de A o n\u00famero 200.1.2 para o valor que resulta do bitwise-AND entre o netmask 255.255.255.0 e o IP de E, 200.1.3.2, que \u00e9 200.1.3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ao montar cada n\u00f3 com seu endere\u00e7o IP, a m\u00e1scara de sub-rede IP (netmask) tamb\u00e9m devem ser especificada. Esta m\u00e1scara \u00e9 usada para especificar qual parte do endere\u00e7o \u00e9 a parte de n\u00famero de rede, e que \u00e9 a parte de host. Isto \u00e9 realizado por um l\u00f3gico bitwise-AND entre o netmask e o endere\u00e7o [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1138,"menu_order":132,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-1159","page","type-page","status-publish","hentry"],"jetpack_shortlink":"https:\/\/wp.me\/P8yKGp-iH","jetpack-related-posts":[{"id":1166,"url":"https:\/\/efagundes.com\/networking\/protocolos-tcpip\/restricoes-de-uso\/","url_meta":{"origin":1159,"position":0},"title":"Restri\u00e7\u00f5es de uso","author":"Eduardo Fagundes","date":"19\/11\/2012","format":false,"excerpt":"If the 0 subnet number cannot be used, the netmask will have to change to FFFFFFE0, or 255.255.255.224, to give 3 subnet bits. The subnet numbers in binary are then: 000 001 010 011 100 101 110 111. The numbers 000 and 111 are illegal, leaving 6 networks. The valid\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"Slide245","src":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide245.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide245.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide245.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide245.png?resize=700%2C400 2x"},"classes":[]},{"id":1156,"url":"https:\/\/efagundes.com\/networking\/protocolos-tcpip\/roteamento-em-segmentos-diferentes\/","url_meta":{"origin":1159,"position":1},"title":"Roteamento em segmentos diferentes","author":"Eduardo Fagundes","date":"19\/11\/2012","format":false,"excerpt":"O dispositivo C est\u00e1 agindo como um host entre as duas redes. Um roteador \u00e9 um dispositivo que escolhe caminhos diferentes para os pacotes de rede, baseado no endere\u00e7amento dos frames IP. Rotas diferentes conectam a redes diferentes. O roteador ter\u00e1 mais de um endere\u00e7o para estabelecer diferentes rotas para\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"Slide239","src":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide239.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide239.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide239.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide239.png?resize=700%2C400 2x"},"classes":[]},{"id":644,"url":"https:\/\/efagundes.com\/networking\/ethernet-2\/switched-ethernet\/","url_meta":{"origin":1159,"position":2},"title":"Switched Ethernet","author":"Eduardo Fagundes","date":"17\/11\/2012","format":false,"excerpt":"Importante notar que o funcionamento da topologia em estrela depende do perif\u00e9rico concentrador utilizado, se for um hub ou um switch. No caso da utiliza\u00e7\u00e3o de um hub, a topologia fisicamente ser\u00e1 em estrela, como mostrada na figura no lado direito, por\u00e9m logicamente ela continua sendo uma rede de topologia\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide351.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide351.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide351.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide351.jpg?resize=700%2C400 2x"},"classes":[]},{"id":146,"url":"https:\/\/efagundes.com\/networking\/modelos-de-referencia\/modelo-osi\/","url_meta":{"origin":1159,"position":3},"title":"Modelo OSI","author":"Eduardo Fagundes","date":"16\/11\/2012","format":false,"excerpt":"As camadas 3, 2 e 1 s\u00e3o respons\u00e1veis por mover os pacotes de dados da esta\u00e7\u00e3o de origem para a esta\u00e7\u00e3o de destino. Camada Rede (3) A camada de rede estabelece a rota entre o transmissor e o receptor atrav\u00e9s dos pontos de roteamento existentes na rede. O exemplo mais\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"Slide2","src":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide210.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide210.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide210.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2015\/03\/Slide210.jpg?resize=700%2C400 2x"},"classes":[]},{"id":65,"url":"https:\/\/efagundes.com\/networking\/hardware-de-rede\/hardware-de-rede-2\/","url_meta":{"origin":1159,"position":4},"title":"Defini\u00e7\u00e3o de Hardware de Rede","author":"Eduardo Fagundes","date":"16\/11\/2012","format":false,"excerpt":"As redes de difus\u00e3o t\u00eam apenas um canal de comunica\u00e7\u00e3o, compartilhando por todas os equipamento da rede. Mensagem curtas, chamados de pacotes, s\u00e3o enviados por qualquer m\u00e1quina e identificados pela m\u00e1quina de destino. Quando as m\u00e1quinas recebem um pacote, as m\u00e1quinas verificam o campo de endere\u00e7o e processar\u00e1 a mensagem\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/efagundes.com.br\/networking\/wp-content\/uploads\/sites\/7\/2012\/11\/Slide8.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com.br\/networking\/wp-content\/uploads\/sites\/7\/2012\/11\/Slide8.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com.br\/networking\/wp-content\/uploads\/sites\/7\/2012\/11\/Slide8.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":1153,"url":"https:\/\/efagundes.com\/networking\/protocolos-tcpip\/roteamento-basico\/","url_meta":{"origin":1159,"position":5},"title":"Roteamento B\u00e1sico","author":"Eduardo Fagundes","date":"19\/11\/2012","format":false,"excerpt":"Suponha que A queira enviar um pacote pela primeira vez a C, e que conhece o endere\u00e7o IP de C. Para enviar este pacote pela rede Ethernet, A precisaria conhecer endere\u00e7o Ethernet de C. O Protocolo de Resolu\u00e7\u00e3o de Endere\u00e7o (Address Resolution Protocol - ARP) \u00e9 usado para a descoberta\u2026","rel":"","context":"Post similar","block_context":{"text":"Post similar","link":""},"img":{"alt_text":"Slide237","src":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide237.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide237.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide237.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/efagundes.com\/networking\/wp-content\/uploads\/sites\/5\/2012\/11\/Slide237.png?resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/pages\/1159","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/comments?post=1159"}],"version-history":[{"count":0,"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/pages\/1159\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/pages\/1138"}],"wp:attachment":[{"href":"https:\/\/efagundes.com\/networking\/wp-json\/wp\/v2\/media?parent=1159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}