{"id":2168,"date":"2019-11-07T10:04:35","date_gmt":"2019-11-07T10:04:35","guid":{"rendered":"http:\/\/noerdoteket.dk\/?p=2168"},"modified":"2019-11-15T14:48:54","modified_gmt":"2019-11-15T13:48:54","slug":"chokerende-mange-grundlaeggende-fejl-i-d-link-router","status":"publish","type":"post","link":"https:\/\/noerdoteket.dk\/index.php\/2019\/11\/07\/chokerende-mange-grundlaeggende-fejl-i-d-link-router\/","title":{"rendered":"Chokerende mange grundl\u00e6ggende fejl i D-Link router!"},"content":{"rendered":"\n<p>Kan man k\u00f8be en router for billigt? Det sp\u00f8rgsm\u00e5l f\u00e5r vi besvaret i denne test, hvor jeg uds\u00e6tter en D-Link DIR-809 Wi-Fi Router for en r\u00e6kke grundl\u00e6ggende funktionstests p\u00e5 CD-router testplatformen fra<a href=\"https:\/\/qacafe.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" QA Cafe. (\u00e5bner i en ny fane)\"> QA Cafe.<\/a> <\/p>\n\n\n\n<!--more-->\n\n\n\n<p>Jeg er chokeret! <\/p>\n\n\n\n<p>D-Link DIR-809 er en low-end dualband Wi-Fi router som jeg k\u00f8bte i el-giganten p\u00e5 tilbud for knap 200 kr. Normalprisen er 300 kr, hvilket m\u00e5 siges at v\u00e6re rimelig billigt &#8211; specielt sammenlignet med de routere jeg normalt tester som typisk er i prislejet mellem 1000 og 3000 kr.<\/p>\n\n\n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-inpost-add -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"1741650889\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n\n\n\n<p>Derfor har jeg da heller ikke forventninger om at ydelsen bl\u00e6ser trusserne af mig, men s\u00e5 langt n\u00e5ede jeg slet ikke, da jeg startede med at gennemf\u00f8re en r\u00e6kke funktionstest af den helt grundl\u00e6ggende virkem\u00e5de. <\/p>\n\n\n\n<p>F\u00f8rst og fremmest er en router en dims som agerer mellemmand mellen dit lokalnetv\u00e6rk (LAN) og s\u00e5 internettet (WAN) og med grundl\u00e6ggende funktionalitet mener jeg dermed features, som routning, NAT, firewall og s\u00e5 videre. Om ydelsen er h\u00f8j eller lav er den grundl\u00e6ggende funktionalitet foruds\u00e6tningen for sikkerheden p\u00e5 dit LAN og om din trafik n\u00e5r frem til rette modtager.<\/p>\n\n\n\n<p>Til at teste de grundl\u00e6ggende funktioner benytter jeg CD routerplatformens <a href=\"https:\/\/support.qacafe.com\/quick-start-guide\/cdrouter-top-100\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"pr\u00e6definerede top-100 testsuite (\u00e5bner i en ny fane)\">pr\u00e6definerede top-100 testsuite<\/a>, som erfaringsm\u00e6ssigt kommer rimelig ud i krogene af de forskellige funktioner &#8211; og som b\u00f8r best\u00e5 uden fejl for en velfungerende router.<\/p>\n\n\n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-inpost-add -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"1741650889\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n\n\n\n<p>Til min store overraskelse fejlede ikke mindre end 12 ud af de 100 test cases, og der er tale om s\u00e6rdeles grelle fejl i helt fundamentale funktioner. Jeg n\u00e6vner i fl\u00e6ng <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>manglende genberegning af header checksum ved visse typer NAT header manipulation<\/li><li>Firewall tillader trafik fra IP adresser som ikke er i LAN scope<\/li><li>DNS og DNSSEC returnerer i visse tilf\u00e6lde korrupte pakker<\/li><li>Pakker droppes ved visse IP options i headeren<\/li><li>TTL dekrementeres ikke<\/li><\/ul>\n\n\n\n<p>Se et resume af alle de testcases der blev udf\u00f8rt <a href=\"https:\/\/noerdoteket.dk\/cdrouter\/dir809.html\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (\u00e5bner i en ny fane)\">her<\/a> (\u00e5bner i nyt vindue).<\/p>\n\n\n\n<p>Det er dybt chokerende at et produkt med s\u00e5 graverende fejl overhovedet s\u00e6lges p\u00e5 det danske marked, og jeg m\u00e5 p\u00e5 det kraftigste frar\u00e5de at man k\u00f8ber dette produkt.<\/p>\n\n\n\n<p>Se testen og en del tekniske forklaringer af de forskellige begreber i denne video &#8211; pas p\u00e5! Det blev til en ret lang teknikbasker, men jeg har indsat links til de forskellige afsnit i beskrivelsen under videoen. Selve testene begynder cirka 20 minutter inde i videoen, og jeg runder af med at vise samme test udf\u00f8rt p\u00e5 en AVM Fritzbox! 7590.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Kan man k\u00f8be en router for billigt? D-Link DIR-809\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/-vKATLq9OMI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Selv om denne router i allerh\u00f8jeste grad m\u00e5 siges at v\u00e6re dumpet, s\u00e5 vil jeg alligevel lave en r\u00e6kke Wi-Fi tests, da jeg skal bruge de resultater til at etablere en baseline til de senere tests af andre produkter p\u00e5 testplatformen fra QA cafe. To be continued&#8230;<\/p>\n\n\n\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- wp-ad-rect -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-7793103161450012\"\r\n     data-ad-slot=\"8706514482\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Kan man k\u00f8be en router for billigt? Det sp\u00f8rgsm\u00e5l f\u00e5r vi besvaret i denne test, hvor jeg uds\u00e6tter en D-Link DIR-809 Wi-Fi Router for en r\u00e6kke grundl\u00e6ggende funktionstests p\u00e5 CD-router testplatformen fra QA Cafe.<\/p>\n","protected":false},"author":1,"featured_media":2182,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[],"class_list":["post-2168","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ikke-kategoriseret-da"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Chokerende mange grundl\u00e6ggende fejl i D-Link router! - N\u00f8rd&#039;o&#039;teket<\/title>\n<meta name=\"description\" content=\"En funktionstest af D-Link router afsl\u00f8rer grelle fejl i helt grundl\u00e6ggende funktionalitet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/noerdoteket.dk\/index.php\/2019\/11\/07\/chokerende-mange-grundlaeggende-fejl-i-d-link-router\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chokerende mange grundl\u00e6ggende fejl i D-Link router! 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