{"id":5712,"date":"2019-07-29T15:23:31","date_gmt":"2019-07-29T13:23:31","guid":{"rendered":"https:\/\/www.commander1024.de\/wordpress\/?p=5712"},"modified":"2019-07-29T15:23:31","modified_gmt":"2019-07-29T13:23:31","slug":"junos-ipv6-dhcpv6-client-pd","status":"publish","type":"post","link":"https:\/\/www.commander1024.de\/wordpress\/2019\/07\/junos-ipv6-dhcpv6-client-pd\/","title":{"rendered":"JunOS: IPv6 DHCPv6 Client + PD"},"content":{"rendered":"\n <p> Im Zuge meiner Unitymedia Umstellung habe ich auch native IPv6 Konnektivit\u00e4t (via DHCPv6 + Prefix Delegation) erhalten, welche ich zuvor mit einem <a rel=\"noreferrer noopener\" aria-label=\"Tunnel von Hurricane Electric (\u00f6ffnet in neuem Tab)\" href=\"https:\/\/tunnelbroker.net\/\" target=\"_blank\">Tunnel von Hurricane Electric<\/a> realisiert hatte. Auf der Fritzbox selbst funktioniert die Dual-Stack Adressierung logischerweise out-of-the-box. Ich nutze allerdings den Bridge-Modus, um meine eigene Firewall hinter der Fritzbox zu betreiben. Dies geht allerdings nur in Business-Vertr\u00e4gen, <a href=\"https:\/\/www.commander1024.de\/wordpress\/2019\/04\/unitymedia-internetkatastrophe\/\">wie ich neulich festgestellt habe<\/a>. <\/p> \n\n\n\n <p> Klemme ich mein Linux Notebook an diesen Bridge-Port, bekomme ich ebenfalls sofort eine Dual Stack Adressierung. JunOS verh\u00e4lt sich dabei aber deutlich anders als andere Router\/Firewalls. <\/p> \n\n\n\n<h2 class=\"wp-block-heading\">IPv6 flow mode aktivieren<\/h2>\n\n\n\n <p> IPv6 ist ebenfalls wie MPLS und das ISO Protokoll per default deaktiviert. Falls es noch nicht aktiv ist, muss es nat\u00fcrlich eingeschaltet werden. Dabei verwende ich den Flow-Mode, da das Ger\u00e4t bei mir die Funktion der stateful Firewall \u00fcbernimmt. <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">set security forwarding-options family inet6 mode flow-based<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Systemdefaults setzen<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">system {\n    host-name Resistance;\n    domain-name commander1024.de;\n    domain-search commander1024.de;\n    time-zone Europe\/Berlin;\n    no-redirects;\n    no-redirects-ipv6;\n    internet-options {\n        path-mtu-discovery;\n        no-source-quench;\n        tcp-drop-synfin-set;\n        no-ipv6-reject-zero-hop-limit;\n    }<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">DHCPv6 Client konfigurieren<\/h2>\n\n\n\n <p> Bei der Konfiguration des DHCPv6 Clients gilt es unbedingt zu beachten, dass die SRX Branch Series (3xx) <strong>maximal 3<\/strong> &#8218;update router-advertisement&#8216; Statements beinhalten darf. Mehr als 3 Netze\/VLANs k\u00f6nnen mit einer kleinen SRX also nicht mit dynamischer IPv6 Adressierung ausgestattet werden. Eine dieser komplett sinnlosen, k\u00fcnstlichen Beschr\u00e4nkungen, denen mein ganzer Hass sicher ist. <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">interfaces {\n    ge-0\/0\/0 {\n        description \"WAN @Unitymedia\";\n        unit 0 {\n            family inet {\n                dhcp-client {\n                    client-identifier {\n                        prefix {\n                            host-name;\n                        }\n                    }\n                    retransmission-attempt 6;\n                    retransmission-interval 5;\n                    vendor-id ether;\n                }\n            }\n            family inet6 {\n                dhcpv6-client {\n                    client-type stateful;\n                    client-ia-type ia-na;\n                    client-ia-type ia-pd;\n                    rapid-commit;\n                    prefix-delegating {\n                        preferred-prefix-length 59;\n                    }\n                    update-router-advertisement {\n                        interface ae0.100 {\n                            other-stateful-configuration;\n                        }\n                    }\n                    client-identifier duid-type duid-ll;\n                    update-server;\n                    retransmission-attempt 6;\n                }\n            }\n        }\n    }<\/pre>\n\n\n\n <p> Der wichtigste Punkt &#8211; meiner Meinung &#8211; ist, dass der router-advertisement Client so konfiguriert werden muss, wie er die Einstellungen vom Server erwartet. Weicht die config von den Servereinstellungen ab, schl\u00e4gt die Adressvergabe fehl. Zumindest bin ich hieran fast verzweifelt. <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">protocols {\n    router-advertisement {\n        interface ge-0\/0\/0.0 {\n            managed-configuration;\n            other-stateful-configuration;\n            current-hop-limit 64;\n            default-lifetime 1800;\n        }\n    }<\/pre>\n\n\n\n <p> Ob Konflikte zwischen erwarteter und gelieferter Konfiguration bestehen, l\u00e4sst sich mit &#8217;show ipv6 router-advertisement conflicts&#8216; anzeigen. Gibt es keine, bleibt die Ausgabe leer. Nat\u00fcrlich lassen sich auch alle RA-Infos (aller Interfaces) ausgeben. Hier drin schlummert auch die link-lokale Adresse des Routers, die ich sp\u00e4ter noch konfigurieren muss. <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Commander1024@Resistance> show ipv6 router-advertisement              \nInterface: ge-0\/0\/0.0\n  Advertisements sent: 1535, last sent 00:02:50 ago\n  Solicits received: 0\n  Advertisements received: 197752\n  Solicited router advertisement unicast: Disable\n  Advertisement from fe80::201:5cff:fe79:a846, heard 00:00:02 ago\n    Managed: 1\n    Other configuration: 1\n    Reachable time: 3600000 ms\n    Default lifetime: 1800 sec\n    Retransmit timer: 2000 ms\n    Current hop limit: 0\n<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Commander1024@Resistance> show dhcpv6 client binding detail     \n\nClient Interface\/Id: ge-0\/0\/0.0\n     Hardware Address:             f4:a7:39:22:94:00\n     State:                        BOUND(DHCPV6_CLIENT_STATE_BOUND)\n     ClientType:                   STATEFUL\n     Lease Expires:                2019-08-11 10:09:34 CEST\n     Lease Expires in:             1114292 seconds\n     Lease Start:                  2019-07-28 10:09:34 CEST\n     Bind Type:                    IA_NA IA_PD\n     Preferred prefix length       59\n     Sub prefix length             64\n     Client DUID:                  LL0x3-f4:a7:39:22:94:00\n     Rapid Commit:                 On\n     Server Identifier:            fe80::201:5cff:fe79:a846\n     Update Server                 Yes\n     Client IP Address:            2a02:908:d00:8:d4bf:31b9:ba8e:510b\/128\n     Client IP Prefix:             2a02:908:d8a:cea0::\/59\n\nDHCP options:\n    Name: server-identifier, Value: LL_TIME0x1-0x15b982b6-00:21:28:c0:a9:35\n\nUpdate RA interfaces:\n     Interface: ae0.100\n            RA Prefix:      2a02:908:d8a:cea0::\/64\n     Interface: ae0.254\n            RA Prefix:      2a02:908:d8a:cea1::\/64\n     Interface: ge-0\/0\/3.0\n            RA Prefix:      2a02:908:d8a:cea2::\/64<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Interne Interfaces konfigurieren<\/h2>\n\n\n\n <p> IPv6 muss auf den internen Interfaces nicht konfiguriert werden, da die Prefixes bereits durch den DHCPv6 Client zugeteilt wurden: <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Commander1024@Resistance# show interfaces ae0 unit 100 \ndescription \"trusted LAN\";\nvlan-id 100;\nfamily inet {\n    address 192.168.122.1\/24;\n}<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Default route hinzuf\u00fcgen<\/h2>\n\n\n\n <p> Ich habe es nicht hinbekommen, dass die vom DHCPv6 Server gelernte Default Route auch wirklich in die Routingtabelle eingetragen wird. Ich musste sie daher h\u00e4ndisch setzen. Als Next-Hop verwendet ich die link-lokale Adresse des &#8222;entfernten&#8220; Unitymedia Routers. Das kann freilich nur so lange funktionieren, wie die sich nicht \u00e4ndert. <span class=\"wp-font-emots-emo-displeased\"><\/span> <\/p> \n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">routing-options {\n    rib inet6.0 {\n        static {\n            route ::\/0 {\n                qualified-next-hop fe80::201:5cff:fe79:a846 {\n                    interface ge-0\/0\/0.0;\n                }\n            }\n        }\n    }<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Firewall konfigurieren<\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">        security-zone untrust {\n            screen untrust-screen;\n            interfaces {\n                ge-0\/0\/0.0 {\n                    host-inbound-traffic {\n                        system-services {\n                            dhcp;\n                            dhcpv6;\n                            ssh;\n                            ping;\n                            ike;\n                            https;\n                            ident-reset;\n                        }\n                        protocols {\n                            router-discovery;\n                        }\n                    }\n                }\n            }\n        }<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">   policies {\n        from-zone trust to-zone untrust {\n            policy deny-untrust-dns {\n                description \"Deny direct communication with external DNS server\";\n                match {\n                    source-address any;\n                    destination-address any;\n                    application [ junos-dns-udp junos-dns-tcp ];\n                }\n                then {\n                    reject;\n                }\n            }\n            policy trust-to-untrust {\n                match {\n                    source-address any;\n                    destination-address any;\n                    application any;\n                }\n                then {\n                    permit;\n                    count;\n                }\n            }\n        }\n    }<\/pre>\n\n\n\n <p>  <\/p> \n","protected":false},"excerpt":{"rendered":" <p> Im Zuge meiner Unitymedia Umstellung habe ich auch native IPv6 Konnektivit\u00e4t (via DHCPv6 + Prefix Delegation) erhalten, welche ich zuvor mit einem Tunnel von Hurricane Electric realisiert hatte. Auf der Fritzbox selbst funktioniert die Dual-Stack Adressierung logischerweise out-of-the-box. Ich nutze allerdings den Bridge-Modus, um meine eigene Firewall hinter der Fritzbox zu betreiben. Dies geht allerdings&hellip; <\/p> \n","protected":false},"author":1,"featured_media":5637,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[12,29,87,414],"tags":[488,261,416,415,417,489],"class_list":["post-5712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administration","category-internet","category-it","category-networking","tag-dhcpv6","tag-ipv6","tag-juniper","tag-junos","tag-networking","tag-router-advertisement","comments-open","no-comments"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>JunOS: IPv6 DHCPv6 Client + PD &#8211; Commander1024<\/title>\n<meta name=\"description\" content=\"Im Zuge meiner Unitymedia Umstellung habe ich auch native IPv6 Konnektivit\u00e4t erhalten, welche ich auf JunOS mit DHCPv6 Client konfigurieren wollte.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.commander1024.de\/wordpress\/2019\/07\/junos-ipv6-dhcpv6-client-pd\/\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marcus Scholz\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/\"},\"author\":{\"name\":\"Marcus Scholz\",\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/#\\\/schema\\\/person\\\/aebb61d9f57867e2234becde6d99da8d\"},\"headline\":\"JunOS: IPv6 DHCPv6 Client + PD\",\"datePublished\":\"2019-07-29T13:23:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/\"},\"wordCount\":372,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/#\\\/schema\\\/person\\\/aebb61d9f57867e2234becde6d99da8d\"},\"image\":{\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/wp-content\\\/uploads\\\/2019\\\/04\\\/DSC_0650-scaled.jpg\",\"keywords\":[\"DHCPv6\",\"IPv6\",\"Juniper\",\"JunOS\",\"Networking\",\"Router Advertisement\"],\"articleSection\":[\"Administration\",\"Internet\",\"IT\",\"Networking\"],\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/\",\"url\":\"https:\\\/\\\/www.commander1024.de\\\/wordpress\\\/2019\\\/07\\\/junos-ipv6-dhcpv6-client-pd\\\/\",\"name\":\"JunOS: IPv6 DHCPv6 Client + PD &#8211; 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