{"id":1012985,"date":"2023-08-18T10:10:29","date_gmt":"2023-08-18T10:10:29","guid":{"rendered":"https:\/\/beta-new.inhand.com\/?p=6779"},"modified":"2026-06-03T11:49:32","modified_gmt":"2026-06-03T11:49:32","slug":"why-use-vrrp-technology","status":"publish","type":"post","link":"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology","title":{"rendered":"Warum VRRP-Technologie einsetzen?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1012985\" class=\"elementor elementor-1012985\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f5deb9f e-con-full anli_box e-flex e-con e-parent\" data-id=\"f5deb9f\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6c1a9e e-con-full anli_box_l e-flex e-con e-child\" data-id=\"6c1a9e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-34437fe7 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"34437fe7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Warum VRRP-Technologie einsetzen?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3775149e e-con-full e-flex e-con e-child\" data-id=\"3775149e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10a10b91 elementor-widget elementor-widget-heading\" data-id=\"10a10b91\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Blogs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6bac9b35 e-con-full e-flex e-con e-child\" data-id=\"6bac9b35\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-788fe74d elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"788fe74d\" data-element_type=\"widget\" id=\"maodian1\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wichtigste Erkenntnisse<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-257fbef5 elementor-widget elementor-widget-heading\" data-id=\"257fbef5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Wir wissen, dass f\u00fcr die Ger\u00e4tekommunikation zwischen verschiedenen Subnetzen die Routing-Konfiguration erforderlich ist. Der n\u00e4chste Hop der Gateway-Route verweist auf einen Router RouterA im Netzwerksegment, in dem sich der Host befindet. VRRP (Virtual Router Redundancy Protocol) f\u00fcgt Router, die die Gateway-Funktion \u00fcbernehmen k\u00f6nnen, einer Backup-Gruppe hinzu, um einen virtuellen Router zu bilden.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76ab826 elementor-widget elementor-widget-heading\" data-id=\"76ab826\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Warum VRRP-Technologie?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d5b642b elementor-widget elementor-widget-text-editor\" data-id=\"d5b642b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Wir wissen, dass zur Realisierung der Ger\u00e4tekommunikation zwischen verschiedenen Subnetzen das Routing konfiguriert werden muss. Derzeit gibt es zwei g\u00e4ngige Routing-Methoden:<\/p><ul><li>\u00a0Die erste Methode ist das dynamische Lernen durch Routing-Protokolle: RIP und OSPF.<\/li><li>Die zweite Methode ist die statische Weiterleitung: Konfigurieren Sie die statische Weiterleitung f\u00fcr den Terminal-PC.<\/li><\/ul><p>Beide Routen haben ihre jeweiligen Vor- und Nachteile:<\/p><ul><li>Die erste Route kann automatisch den besten Pfad finden, und die Nachbarroute kann auch lernen, die Routingtabelle zu erhalten, aber die dynamische Route beansprucht die Leitungsbandbreite und die CPU-Verarbeitungszeit.<\/li><li>Die zweite Route ben\u00f6tigt keine CPU-Verarbeitungszeit und beansprucht keine Leitungsbandbreite, allerdings muss f\u00fcr diese Route das Gateway auf dem PC des Endger\u00e4ts konfiguriert werden, und der Arbeitsaufwand ist relativ gro\u00df.<\/li><\/ul><p>Die beiden oben genannten Routen werden heutzutage h\u00e4ufig genutzt.<\/p><p><strong>Wir werden nun ausschlie\u00dflich die Nachteile des statischen Routings analysieren, da die VRRP-Technologie beim statischen Routing und nicht beim dynamischen Routing zum Einsatz kommt.<\/strong><\/p><p>Konfigurieren Sie f\u00fcr statisches Routing das Standardgateway f\u00fcr den Terminal-PC. F\u00e4llt der Router als Standardgateway aus, wird die Kommunikation aller Hosts unterbrochen, die dieses Gateway als n\u00e4chsten Hop verwenden. Siehe Abbildung unten.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9dd7e68 elementor-widget elementor-widget-image\" data-id=\"9dd7e68\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1400\" height=\"477\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1.png\" class=\"attachment-full size-full wp-image-1012689\" alt=\"VRRP-Router-Redundanzdiagramm mit prim\u00e4ren und Backup-Gateways f\u00fcr Netzwerkzuverl\u00e4ssigkeit\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1.png 1400w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1-300x102.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1-768x262.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1-18x6.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.1-600x204.png 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c861a0 elementor-widget elementor-widget-text-editor\" data-id=\"6c861a0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p>In der obigen Abbildung sind alle Hosts der AD-Gruppe mit dem Standardgateway 10.1.1.1 konfiguriert. Der n\u00e4chste Hop der Gateway-Route verweist auf einen Router RouterA im Netzwerksegment, in dem sich der Host befindet. RouterA sendet die Nachricht an das externe Netzwerk. F\u00e4llt RouterA nun aus, k\u00f6nnen alle Hosts nicht mehr mit anderen Netzwerksegmenten kommunizieren.<\/p><p>Um die oben genannten Probleme zu l\u00f6sen, k\u00f6nnen wir einen Router RouterB hinzuf\u00fcgen, wie in der folgenden Abbildung dargestellt:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a732aa7 elementor-widget elementor-widget-image\" data-id=\"a732aa7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1400\" height=\"501\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2.png\" class=\"attachment-full size-full wp-image-1012690\" alt=\"Netzwerkdiagramm zur VRRP-Implementierung f\u00fcr Routerredundanz mit Router A im Gateway-Routing\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2.png 1400w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2-300x107.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2-768x275.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2-18x6.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.2-600x215.png 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9aef10b elementor-widget elementor-widget-text-editor\" data-id=\"9aef10b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><br><\/p><p>Wenn Router A ausf\u00e4llt, schalten alle PCs automatisch auf das Gateway von Router B um. Dadurch wird die Router-Backup-Funktion realisiert. Diese Technologie nennt sich VRRP (Virtual Router Redundancy Protocol).<\/p>\n<p>Einf\u00fchrung in VRRP (Weiterleitungsmechanismus)<\/p>\n<p>1. VRRP (Virtual Router Redundancy Protocol) f\u00fcgt Router, die die Gateway-Funktion \u00fcbernehmen k\u00f6nnen, einer Backup-Gruppe hinzu und bildet so einen virtuellen Router. Der VRRP-Wahlmechanismus bestimmt, welcher Router die Weiterleitung \u00fcbernimmt, und Hosts im LAN m\u00fcssen lediglich den virtuellen Router als Standard-Gateway konfigurieren.<\/p>\n<p>2. VRRP ist ein fehlertolerantes Protokoll, das die Zuverl\u00e4ssigkeit erh\u00f6ht und die Hostkonfiguration vereinfacht. In einem lokalen Netzwerk (z. B. Ethernet) mit Multicast- oder Broadcast-Funktionalit\u00e4t kann VRRP auch bei Ausfall eines Ger\u00e4ts eine hochzuverl\u00e4ssige Standardverbindung bereitstellen und so Netzwerkunterbrechungen nach dem Ausfall einer einzelnen Verbindung effektiv vermeiden, ohne Konfigurationsinformationen wie dynamische Routing-Protokolle oder Routenfindungsprotokolle \u00e4ndern zu m\u00fcssen.<\/p>\n<p>3. Das VRRP-Protokoll ist in zwei Versionen implementiert: VRRPv2 und VRRPv3. VRRPv2 basiert auf IPv4 und VRRPv3 basiert auf IPv6.<\/p>\n<p>4. VRRP-Router: Alle Router, die das VRRP-Protokoll ausf\u00fchren, werden als VRRP-Router bezeichnet.<\/p>\n<p>5. VRRP-Backup-Gruppe: Mehrere Router werden in Gruppen unterteilt, wobei ein Hauptrouter ausgew\u00e4hlt und die \u00fcbrigen als Backup-Router verwendet werden. Normalerweise ist einer der Hauptrouter aktiv, w\u00e4hrend der Backup-Router im Leerlauf ist. F\u00e4llt der Hauptrouter aus, \u00fcbernimmt einer der Backup-Router dessen Funktion. Die Router dieser Gruppe bilden die Backup-Gruppe.<\/p>\n<p>Wie in der Abbildung unten dargestellt, gibt es zwei Router und zwei Gateways. Einer der beiden Router ist als prim\u00e4rer Router ausgew\u00e4hlt, die anderen dienen als Backup-Router. Der prim\u00e4re Router ist f\u00fcr die Weiterleitung von Datagrammen zust\u00e4ndig, w\u00e4hrend sich der Backup-Router im Leerlauf befindet. F\u00e4llt der prim\u00e4re Router aus, \u00fcbernimmt der Backup-Router dessen Funktion und stellt die Weiterleitungsfunktion wieder her.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-123e60c elementor-widget elementor-widget-image\" data-id=\"123e60c\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1400\" height=\"500\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3.png\" class=\"attachment-full size-full wp-image-1012691\" alt=\"Router-Netzwerkdiagramm zur Darstellung des VRRP-Redundanzprotokolls f\u00fcr Ausfallsicherheit\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3.png 1400w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3-300x107.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3-768x274.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3-18x6.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.3-600x214.png 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a618876 elementor-widget elementor-widget-text-editor\" data-id=\"a618876\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>6. Virtueller Router: Ein virtueller Router ist eine Gruppe aller Router in einer VRRP-Backup-Gruppe. Es handelt sich um ein logisches Konzept, das nicht real existiert. Betrachtet man die Router der Backup-Gruppe von au\u00dferhalb, wirken sie wie ein einziger Router. Man kann sich die Gruppe wie folgt vorstellen: Master-Router + alle Backup-Router = virtuelle Router. Jeder virtuelle Router besitzt eine virtuelle IP-Adresse und eine virtuelle MAC-Adresse. Stimmt die virtuelle IP-Adresse mit der IP-Adresse eines Routers in der Backup-Gruppe \u00fcberein, so wird dieser Router als IP-Adresseninhaber bezeichnet und fungiert als Hauptrouter der Backup-Gruppe.<\/p><p>Wie in der Abbildung unten dargestellt: RA, RB und RC sind VRRP-Router, die eine VRRP-Backup-Gruppe bilden. RA ist der Hauptrouter, w\u00e4hrend RB und RC als Backup-Router fungieren. Von au\u00dfen betrachtet erscheinen diese drei Router als ein einziger Router und bilden somit eine virtuelle Router-Gruppe. Der virtuelle Router besitzt die virtuelle IP-Adresse 10.1.1.1 (die IP-Adresse des Hauptrouters RA). RA ist der Inhaber dieser IP-Adresse und somit der Hauptrouter.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f23151 elementor-widget elementor-widget-image\" data-id=\"7f23151\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1400\" height=\"474\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4.png\" class=\"attachment-full size-full wp-image-1012692\" alt=\"Netzwerkdiagramm zur Veranschaulichung der VRRP-Technologie mit RouterA f\u00fcr Routerredundanz und Hochverf\u00fcgbarkeit.\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4.png 1400w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4-300x102.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4-768x260.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4-18x6.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/blog2.4-600x203.png 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e29cf6e elementor-widget elementor-widget-text-editor\" data-id=\"e29cf6e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0 \u00a0<\/p><p>\u00a07. Virtuelle IP-Adresse und MAC-Adresse: Der virtuelle Router in der VRRP-Gruppe (Backup-Gruppe) erscheint als die eindeutige virtuelle MAC-Adresse im Adressformat 00\u201300\u20135e-00\u201301-[VRID], wobei VRID die Nummer der VRRP-Gruppe ist und zwischen 0 und 255 liegt.<\/p><p>In der obigen Abbildung sind drei Router in einer Gruppe angeordnet, die von 0 bis 255 nummeriert werden kann.<\/p><p><strong>Notiz:<\/strong><\/p><p>1. Der virtuelle Router verf\u00fcgt \u00fcber eine IP-Adresse. Die Hosts im LAN m\u00fcssen lediglich die IP-Adresse dieses virtuellen Routers kennen und sie als n\u00e4chste Hop-Adresse der Standardroute festlegen.<\/p><p>2. Die IP-Adresse des virtuellen Routers kann die nicht zugewiesene IP-Adresse in dem Netzwerksegment sein, in dem sich die Backup-Gruppe befindet, oder sie kann mit der Schnittstellen-IP-Adresse eines Routers in der Backup-Gruppe \u00fcbereinstimmen.<\/p><p>3. Router mit derselben IP-Adresse wie die virtuelle IP-Adresse werden als IP-Adressbesitzer bezeichnet. In derselben VRRP-Backup-Gruppe kann nur ein IP-Adressbesitzer konfiguriert werden.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e87d53 e-con-full e-flex e-con e-child\" data-id=\"1e87d53\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a14c13b e-con-full anli_l_st e-flex e-con e-child\" data-id=\"a14c13b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:90,&quot;sticky_effects_offset&quot;:100,&quot;sticky_anchor_link_offset&quot;:100,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t<div class=\"elementor-element elementor-element-1da7e082 e-con-full e-flex e-con e-child\" data-id=\"1da7e082\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69473ed elementor-widget elementor-widget-heading\" data-id=\"69473ed\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mehr lesen <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-108ac635 elementor-widget elementor-widget-shortcode\" data-id=\"108ac635\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">    <style>\n        \/* --- \u8fd9\u91cc\u7684\u53c2\u6570\u5168\u90e8\u4fdd\u7559\u4f60\u7684\u4fee\u6539 --- *\/\n        .vpro-wrapper {\n            width: 100%;\n            max-width: 25rem;\n            height: 38.5rem;\n            overflow-y: auto;\n            overflow-x: hidden;\n            \/* 1. \u589e\u52a0\u5e95\u90e8\u5185\u8fb9\u8ddd\uff0c\u5236\u9020\u865a\u7a7a\u611f *\/\n            padding: 0.3125rem 0.3125rem 0rem 0.3125rem;\n            scrollbar-width: thin;\n            box-sizing: border-box;\n        }\n\n        .vpro-wrapper::-webkit-scrollbar { width: 0.25rem; }\n        .vpro-wrapper::-webkit-scrollbar-thumb { background: #ccc; border-radius: 0.625rem; }\n\n        .vpro-item {\n            width: 100%;\n            height: 21rem;\n            margin-bottom: 1rem;\n            background: #fff;\n            border: 0.0625rem solid #D7D7D7;\n            border-radius: 0.5rem;\n            display: flex;\n            flex-direction: column;\n            flex-shrink: 0;\n            overflow: hidden;\n            box-sizing: border-box;\n            transition: all 0.3s ease;\n        }\n\n        .vpro-item:hover {\n            box-shadow: 0 0.5rem 1.25rem rgba(0,0,0,0.08);\n            transform: translateY(-0.125rem);\n        }\n\n        .vpro-img-box {\n            width: 100%;\n            height: 14rem; \/* \u4fdd\u7559\u4f60\u6539\u7684 10rem *\/\n            overflow: hidden;\n            background: #f5f5f5;\n            flex-shrink: 0;\n        }\n\n        .vpro-img-box img {\n            width: 100%;\n            height: 100%;\n            object-fit: cover;\n            object-position: center;\n            display: block;\n        }\n\n        .vpro-content {\n            padding: 0.5rem 0.5rem 0.8rem 1.25rem;\n            flex-grow: 1;\n            display: flex;\n            align-items: center;\n        }\n\n        .vpro-title {\n            font-size: 1.25rem; \/* \u4fdd\u7559\u4f60\u6539\u7684 1.5rem *\/\n            font-weight: 500;\n            line-height: 1.4;\n            color: #000;\n            display: -webkit-box;\n            -webkit-line-clamp: 3; \/* \u4fdd\u7559\u4f60\u6539\u7684 3 \u884c *\/\n            -webkit-box-orient: vertical;\n            overflow: hidden;\n            text-decoration: none;\n        }\n\n        .vpro-title a {\n            text-decoration: none;\n            color: inherit;\n        }\n\n        \/* 2. \u589e\u52a0\u4e00\u4e2a\u7269\u7406\u5360\u4f4d\u7b26\uff0c\u786e\u4fdd\u6eda\u52a8\u5230\u5e95\u90e8\u6709\u4f59\u91cf *\/\n        .vpro-bottom-spacer {\n            height: 4rem;\n            width: 100%;\n            flex-shrink: 0;\n        }\n    <\/style>\n\n    <div class=\"vpro-wrapper\">\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/de\/business-segment\/business-networking\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"2280\" height=\"1284\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"Verf\u00fcgbarkeit des Kassensystems\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket.jpg 2280w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-300x169.jpg 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-2000x1126.jpg 2000w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-768x433.jpg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-1536x865.jpg 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-2048x1153.jpg 2048w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-18x10.jpg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/empty-checkout-counter-modern-supermarket-600x338.jpg 600w\" sizes=\"(max-width: 2280px) 100vw, 2280px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/de\/business-segment\/business-networking\">Gesch\u00e4ftliche Netzwerke<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-do-you-need-a-5g-failover-solution\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"438\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Warum braucht man 5G-Failover?\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover.png 800w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover-300x164.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover-768x420.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover-18x10.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/why-do-you-need-5g-failover-600x329.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-do-you-need-a-5g-failover-solution\">Warum ben\u00f6tigen Sie eine 5G-Failover-L\u00f6sung?<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/de\/business-segment\/industrial-iot\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"1520\" height=\"856\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"Ingenieur \u00fcberwacht Photovoltaikanlagen mithilfe von Industrial IoT zur vorausschauenden Wartung\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace.jpg 1520w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace-300x169.jpg 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace-768x433.jpg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace-18x10.jpg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/pc-monitoring-photovoltaics-engineering-workspace-600x338.jpg 600w\" sizes=\"(max-width: 1520px) 100vw, 1520px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/de\/business-segment\/industrial-iot\">Industrielles IoT<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/de\/company\/news\/ig502-controlengineering-award\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Das industrielle Mobilfunk-Gateway IG502 erh\u00e4lt den Engineers&#039; Choice Award von Control Engineering\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng.png 1024w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng-300x169.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng-768x432.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng-18x10.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng-600x338.png 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/de\/company\/news\/ig502-controlengineering-award\">IG502 hat den 35. j\u00e4hrlichen Control Engineering Engineers&#039; Choice Award gewonnen.<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/de\/company\/news\/ir300-e-mark-certified\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Das industrielle Mobilfunk-Gateway IG502 erh\u00e4lt den Engineers&#039; Choice Award von Control Engineering\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng.png 1024w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/06\/InHand-Networks-IG502-has-won-35th-annual-Control-Engineering-Engineers-Choice-Award-2-new-feng-300x169.png 300w, 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\/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/de\/support\/blogs\/what-is-wi-fi-7\">Was ist Wi-Fi 7?<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n        <div class=\"vpro-bottom-spacer\"><\/div>\n    <\/div>\n    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Warum VRRP-Technologie? Um die Ger\u00e4tekommunikation zwischen verschiedenen Subnetzen zu erm\u00f6glichen, muss das Routing konfiguriert werden. Derzeit gibt es zwei g\u00e4ngige Routing-Methoden: Die erste ist das dynamische Lernen\u2026<\/p>","protected":false},"author":1,"featured_media":960008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[817],"tags":[],"case_tag":[],"class_list":["post-1012985","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>VRRP Gateway Redundancy: Eliminating Static Routing Failure<\/title>\n<meta name=\"description\" content=\"VRRP technology creates a virtual router from backup groups, ensuring automatic failover when a gateway fails. Supports VRRPv2 (IPv4) &amp; VRRPv3 (IPv6) for uninterrupted network communication without dynamic routing overhead.\" \/>\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.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Use VRRP technology?\" \/>\n<meta property=\"og:description\" content=\"We know that in order to realize device communication between different subnets, we need to configure routing.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\" \/>\n<meta property=\"og:site_name\" content=\"InHand Networks\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-18T10:10:29+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-03T11:49:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp.png\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"352\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Why Use VRRP technology?\" \/>\n<meta name=\"twitter:description\" content=\"We know that in order to realize device communication between different subnets, we need to configure routing.\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.inhand.com\/de\/#\/schema\/person\/f28b5f5eb652f2ac06a75a465b789734\"},\"headline\":\"Why Use VRRP technology?\",\"datePublished\":\"2023-08-18T10:10:29+00:00\",\"dateModified\":\"2026-06-03T11:49:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\"},\"wordCount\":42,\"publisher\":{\"@id\":\"https:\/\/www.inhand.com\/de\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp.png\",\"articleSection\":[\"blog\"],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\",\"url\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology\",\"name\":\"VRRP Gateway Redundancy: Eliminating Static Routing Failure\",\"isPartOf\":{\"@id\":\"https:\/\/www.inhand.com\/de\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.inhand.com\/de\/support\/blogs\/why-use-vrrp-technology#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/vrrp.png\",\"datePublished\":\"2023-08-18T10:10:29+00:00\",\"dateModified\":\"2026-06-03T11:49:32+00:00\",\"description\":\"VRRP technology creates a virtual router from backup groups, ensuring automatic failover when a gateway fails. 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