{"id":110,"date":"2013-08-10T08:09:23","date_gmt":"2013-08-10T07:09:23","guid":{"rendered":"http:\/\/www.morong.info\/?p=110"},"modified":"2013-08-10T08:29:34","modified_gmt":"2013-08-10T07:29:34","slug":"ipv6-ve-windows","status":"publish","type":"post","link":"https:\/\/www.morong.info\/?p=110","title":{"rendered":"IPv6 ve Windows"},"content":{"rendered":"

IPv6 adresy jsou 128 bitov\u00e9, tedy \u0161estn\u00e1cti bajtov\u00e9.
\nAdresa je ve form\u00e1tu osmi dvoubajt\u016f odd\u011blen\u00fdch dvojte\u010dkami :
\nxxxx : xxxx : xxxx : xxxx : xxxx : xxxx : xxxx : xxxx<\/p>\n

Pokud jsou v dvoubajtu nuly z leva, je mo\u017en\u00e9 je vynechat.
\nP\u0159\u00edklad :
\nFE80:0000:0000:0000:0215:5DFF:FE0A:0505
\nFE80::215:5DFF:FE0A:505<\/p>\n

Na konci automatick\u00fdch IPv6 adres je je\u0161t\u011b \u010d\u00edslo odd\u011blen\u00e9 procentem (%).
\nTo je tzv. Interface ID, \u010d\u00edslo s\u00ed\u0165ov\u00e9 karty. Jeho hodnota je v pc unik\u00e1tn\u00ed.
\nPokud je v\u00edce s\u00ed\u0165ov\u00fdch karet, ka\u017ed\u00e1 bude m\u00edt jin\u00e9 Interface ID.<\/p>\n

Vzd\u00e1len\u00e9 pc : FE80::215:5DFF:FE0A:505 %5
\nPak ping na vzd\u00e1len\u00e9 pc :\u00a0 Ping FE80::215:5DFF:FE0A:505%5
\nTohle je pot\u0159eba opravdu jen v p\u0159\u00edpad\u011b, \u017ee je v\u00edce s\u00ed\u0165ov\u00fdch karet .<\/p>\n

N\u011bkdy je nutno adresu ohrani\u010dit do hranat\u00fdch z\u00e1vorek, aby se to nepletlo s odd\u011blova\u010dem \u010d\u00edsla portu :\u00a0\u00a0 [FE80::9076:12DD:5D0F:1755]:3385\u00a0\u00a0\u00a0 —\u00a0 [IPv6] : \u010d\u00edslo portu<\/p>\n

V z\u00e1kladu je IPv6 protokol automaticky nainstalov\u00e1n a nastaven, aby z\u00edsk\u00e1val IPv6 adresu automaticky (DHCPv6 nebo Link Local (unicast)).<\/p>\n

P\u0159\u00edklady nastaven\u00ed (unique local) :
\nFC00:3::10.10.0.2
\nFC00:3::A0A:2
\nFC00:0003:0000:0000:0000:0000:0A0A:0002
\n(toto je jedna a ta sam\u00e1 IPv6 adresa, jen r\u016fzn\u00fd z\u00e1pis)<\/p>\n

FC00:56::2<\/p>\n

Adresa : FC00:3::10.10.0.2
\nD\u00e9lka masky : 64
\nGw : FC00:3::10.10.0.1<\/p>\n

\"\"<\/p>\n

Link Local (unicast) adresy se neregistruj\u00ed automaticky do DNS a jsou nesm\u011brovateln\u00e9.<\/p>\n

DNS klient p\u0159elo\u017e\u00ed prim\u00e1rn\u011b IPv6 adresu pomoc\u00ed DNS, pt\u00e1 se tedy na AAAA z\u00e1znamy.\u00a0 Ale jinak nen\u00ed nutn\u00fd DNS server. P\u0159i dotazu na jm\u00e9no se pou\u017eije metoda zvan\u00e1 Link Local Multicast Name Resolution (LLMNR), kter\u00e1 je ve v\u00fdchoz\u00edm stavu zapnuta a pou\u017e\u00edv\u00e1 jednoduch\u00fd multicast.<\/p>\n

Konfigurace DNS IPv6 – z\u00f3na zp\u011btn\u00e9ho vyhled\u00e1v\u00e1n\u00ed :
\nFC00:3::\/64 (nap\u0159.)<\/p>\n

DHCPv6 server – polo\u017eka Server Options neobsahuje v\u00fdchoz\u00ed br\u00e1nu.
\nNem\u016f\u017ee, proto\u017ee DHCPv6 nen\u00ed schopno podle standardu tuto informaci v\u016fbec p\u0159id\u011blit.
\nAdresu v\u00fdchoz\u00ed br\u00e1ny p\u0159id\u011bluje sm\u011brova\u010d (router).
\nFakt, \u017ee nen\u00ed v\u00fdchoz\u00ed br\u00e1na je lep\u0161\u00ed, ne\u017e kdyby byla. V p\u0159\u00edpad\u011b, \u017ee by se toti\u017e z DNS vr\u00e1tila IPv6 adresa pro n\u011bjak\u00fd ve\u0159ejn\u00fd web server (nap\u0159\u00edklad), pokou\u0161el by se tam dostat p\u0159es tu br\u00e1nu. Proto\u017ee nen\u00ed IPv6 internetov\u00e1 konektivita, jenom by to zbyte\u010dn\u011b timeoutovalo. TCP SYN timeout je ve v\u00fdchoz\u00edm stavu 21 sekund, co\u017e je hodn\u011b.<\/p>\n

IPCONFIG na klientovi. M\u016f\u017ee b\u00fdt v\u00edce IPv6 adres.
\nAutomaticky generovan\u00e1 link-local adresa FE80::, dodan\u00e1 DHCP serverem na dobu trv\u00e1n\u00ed jeho z\u00e1p\u016fj\u010dky (lease), statick\u00e1.<\/p>\n

IPCONFIG \/release6
\nIPCONFIG \/renew6
\nIPCONFIG \/registerDNS
\nnet stop dnscache & net start dnscache<\/p>\n

IPv6 neum\u00ed NAT. Jestli budou uvnit\u0159 s\u00edt\u011b priv\u00e1tn\u00ed adresy typu FC00::, do internetu se nedostane. To by se musela pou\u017e\u00edt alespo\u0148 n\u011bjak\u00e1 proxy. Mo\u017enost\u00ed tunelov\u00e1n\u00ed je technologie 6to4 (nap\u0159.).<\/p>\n

P\u0159evzato z \u010dl\u00e1nku : www.zive.cz<\/a>
\nP\u0159evzato z \u010dl\u00e1nku : www.zive.cz<\/a><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

IPv6 adresy jsou 128 bitov\u00e9, tedy \u0161estn\u00e1cti bajtov\u00e9. Adresa je ve form\u00e1tu osmi dvoubajt\u016f odd\u011blen\u00fdch dvojte\u010dkami : xxxx : xxxx : xxxx : xxxx : xxxx : xxxx : xxxx : xxxx Pokud jsou v dvoubajtu nuly z leva, je … Cel\u00fd p\u0159\u00edsp\u011bvek →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-110","post","type-post","status-publish","format-standard","hentry","category-administrace"],"_links":{"self":[{"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/posts\/110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.morong.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=110"}],"version-history":[{"count":8,"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/posts\/110\/revisions"}],"predecessor-version":[{"id":116,"href":"https:\/\/www.morong.info\/index.php?rest_route=\/wp\/v2\/posts\/110\/revisions\/116"}],"wp:attachment":[{"href":"https:\/\/www.morong.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.morong.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.morong.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}