[{"data":1,"prerenderedAt":292},["ShallowReactive",2],{"doku:en:richtlinien-anhang\u002Fhilfe-97ef38d0d2d5-enableicmpredirect":3},{"seite":4,"start":37,"leiste":38,"bereich":291,"zurueck":291,"weiter":291},{"sprache":5,"rel":6,"zu":7,"id":8,"titel":9,"titelHtml":9,"beschreibung":10,"kennzeile":11,"imMenue":12,"html":13,"ueberschriften":14},"en","richtlinien-anhang\u002Fhilfe-97ef38d0d2d5-enableicmpredirect","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Fhilfe-97ef38d0d2d5-enableicmpredirect","referenz-hilfe-97ef38d0d2d5-enableicmpredirect","MSS: (EnableICMPRedirect) Allow ICMP redirects to override OSPF generated routes","The `EnableICMPRedirect` registry value controls whether the IPv4 stack changes its routing information in response to received ICMP redirect messages.","since 0.9.8.11",false,"\u003Ch2 id=\"purpose\">Purpose\u003C\u002Fh2>\n\u003Cdetails class=\"doku-klappbox\">\u003Csummary>Show registry keys (1)\u003C\u002Fsummary>\u003Cdiv class=\"doku-klappbox-inhalt\">\n\u003Cul>\n\u003Cli>\u003Ccode>HKLM\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters\\EnableICMPRedirect\u003C\u002Fcode>\u003C\u002Fli>\n\u003C\u002Ful>\n\u003C\u002Fdiv>\u003C\u002Fdetails>\n\u003Cp>The \u003Ccode>EnableICMPRedirect\u003C\u002Fcode> registry value controls whether the IPv4 stack changes its routing information in response to received ICMP redirect messages. These messages inform a host that it should use a different next-hop router for a particular destination.\u003C\u002Fp>\n\u003Cp>The value has the \u003Ccode>REG_DWORD\u003C\u002Fcode> type. A value of \u003Ccode>0\u003C\u002Fcode> prevents Windows from installing the associated host route or updating its path cache in response to an ICMP redirect. Consequently, redirects cannot use this mechanism to supersede routes learned through OSPF.\u003C\u002Fp>\n\u003Ch2 id=\"notes\">Notes\u003C\u002Fh2>\n\u003Ch3 id=\"security\">Security\u003C\u002Fh3>\n\u003Cp>A value of \u003Ccode>0\u003C\u002Fcode> prevents erroneous or malicious ICMP redirect messages from influencing the computer's route selection through this mechanism. This reduces the risk of traffic being temporarily directed through an unintended next-hop router or being routed incorrectly for the affected host.\u003C\u002Fp>\n\u003Cp>This setting does not block all ICMP traffic and is not a substitute for a firewall. Its effect is limited to IPv4 routing changes triggered by ICMP redirect messages.\u003C\u002Fp>\n\u003Ch3 id=\"possible-side-effects\">Possible side effects\u003C\u002Fh3>\n\u003Cp>Windows does not use legitimate ICMP redirects from routers to adjust the network path. On networks that intentionally rely on these messages for path optimization, the computer therefore retains a route obtained through other means even when a router advertises a more suitable next hop.\u003C\u002Fp>\n\u003Ch3 id=\"notes-1\">Notes\u003C\u002Fh3>\n\u003Cp>Microsoft's applicable baseline documentation describes \u003Ccode>EnableICMPRedirect\u003C\u002Fcode> as an IPv4-stack setting. The similarly named Windows Setup setting \u003Ccode>IcmpRedirectsEnabled\u003C\u002Fcode>, which also covers IPv6, is not equivalent to this individual registry value.\u003C\u002Fp>\n\u003Ch3 id=\"microsoft-documentation\">Microsoft documentation\u003C\u002Fh3>\n\u003Cp>\u003Ca href=\"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fazure\u002Fosconfig\u002Fserver2025machineconfigdoc\">Microsoft Learn: Reference — Azure Policy guest configuration baseline for Windows Server 2025\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fintune\u002Fdevice-security\u002Fsecurity-baselines\u002Fref-windows-mdm-settings\">Microsoft Learn: Default configuration of Intune's Windows security baselines\u003C\u002Fa>\u003C\u002Fp>\n\u003Ch2 id=\"see-also\">See also\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Ca href=\"\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-netzwerk-freigaben#e-97ef38d0d2\">Entry in the reference\u003C\u002Fa>\u003C\u002Fli>\n\u003C\u002Ful>\n",[15,19,22,26,29,31,34],{"ebene":16,"id":17,"text":18},2,"purpose","Purpose",{"ebene":16,"id":20,"text":21},"notes","Notes",{"ebene":23,"id":24,"text":25},3,"security","Security",{"ebene":23,"id":27,"text":28},"possible-side-effects","Possible side effects",{"ebene":23,"id":30,"text":21},"notes-1",{"ebene":23,"id":32,"text":33},"microsoft-documentation","Microsoft documentation",{"ebene":16,"id":35,"text":36},"see-also","See also","\u002Fen\u002Fdocumentation",[39,59,71,79,127,147,163,179,203,219,235],{"titel":40,"pfad":41,"seiten":42},"Getting started","erste-schritte",[43,47,51,55],{"rel":44,"titel":45,"zu":46},"erste-schritte\u002Fwas-ist-setup-foundry","Setup Foundry","\u002Fen\u002Fdocumentation\u002Ferste-schritte\u002Fwas-ist-setup-foundry",{"rel":48,"titel":49,"zu":50},"erste-schritte\u002Finstallation","Installing Setup 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apps","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fapps-entfernen",{"rel":108,"titel":109,"zu":110},"konfiguration\u002Fauswaehlen","Selecting applications","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fauswaehlen",{"rel":112,"titel":113,"zu":114},"konfiguration\u002Frichtlinien","Policies","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Frichtlinien",{"rel":116,"titel":117,"zu":118},"konfiguration\u002Fpc-informationen","PC information","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fpc-informationen",{"rel":120,"titel":121,"zu":122},"konfiguration\u002Fnamensschema","Naming scheme","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fnamensschema",{"rel":124,"titel":125,"zu":126},"konfiguration\u002Finstall-assist-gestalten","Design the Install 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license","\u002Fen\u002Fdocumentation\u002Feditionen\u002Flizenz-aktivieren",{"rel":176,"titel":177,"zu":178},"editionen\u002Faktivierungen-zuruecksetzen","Reset activations","\u002Fen\u002Fdocumentation\u002Feditionen\u002Faktivierungen-zuruecksetzen",{"titel":180,"pfad":181,"seiten":182},"Troubleshooting","fehler",[183,187,191,195,199],{"rel":184,"titel":185,"zu":186},"fehler\u002Fusb","USB drive problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fusb",{"rel":188,"titel":189,"zu":190},"fehler\u002Fiso","ISO import problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fiso",{"rel":192,"titel":193,"zu":194},"fehler\u002Fhyperv","Hyper-V problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fhyperv",{"rel":196,"titel":197,"zu":198},"fehler\u002Finstall-assist","When Setup fails on the target computer","\u002Fen\u002Fdocumentation\u002Ffehler\u002Finstall-assist",{"rel":200,"titel":201,"zu":202},"fehler\u002Fantwortdatei","The answer 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tasks","\u002Fen\u002Fdocumentation\u002Fwindows-anhang\u002Faufgaben",{"rel":232,"titel":233,"zu":234},"windows-anhang\u002Fapps","App packages","\u002Fen\u002Fdocumentation\u002Fwindows-anhang\u002Fapps",{"titel":236,"pfad":237,"seiten":238},"Policy appendix","richtlinien-anhang",[239,243,247,251,255,259,263,267,271,275,279,283,287],{"rel":240,"titel":241,"zu":242},"richtlinien-anhang\u002Frichtlinien","Policy reference","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien",{"rel":244,"titel":245,"zu":246},"richtlinien-anhang\u002Frichtlinien-office-haertung","Office hardening","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-office-haertung",{"rel":248,"titel":249,"zu":250},"richtlinien-anhang\u002Frichtlinien-edge-internet-explorer","Edge and Internet Explorer","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-edge-internet-explorer",{"rel":252,"titel":253,"zu":254},"richtlinien-anhang\u002Frichtlinien-virenschutz-angriffsflaechen","Virus protection and attack surface","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-virenschutz-angriffsflaechen",{"rel":256,"titel":257,"zu":258},"richtlinien-anhang\u002Frichtlinien-netzwerk-freigaben","Network and file sharing","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-netzwerk-freigaben",{"rel":260,"titel":261,"zu":262},"richtlinien-anhang\u002Frichtlinien-datenschutz-telemetrie","Privacy and telemetry","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-datenschutz-telemetrie",{"rel":264,"titel":265,"zu":266},"richtlinien-anhang\u002Frichtlinien-protokollierung-ueberwachung","Logging and auditing","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-protokollierung-ueberwachung",{"rel":268,"titel":269,"zu":270},"richtlinien-anhang\u002Frichtlinien-anmeldung-konten","Sign-in and accounts","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-anmeldung-konten",{"rel":272,"titel":273,"zu":274},"richtlinien-anhang\u002Frichtlinien-geraete-wechselmedien","Devices and removable media","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-geraete-wechselmedien",{"rel":276,"titel":277,"zu":278},"richtlinien-anhang\u002Frichtlinien-kernschutz","Kernel protection","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-kernschutz",{"rel":280,"titel":281,"zu":282},"richtlinien-anhang\u002Frichtlinien-laufwerksverschluesselung","Drive encryption","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-laufwerksverschluesselung",{"rel":284,"titel":285,"zu":286},"richtlinien-anhang\u002Frichtlinien-windows-update","Windows Update","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-windows-update",{"rel":288,"titel":289,"zu":290},"richtlinien-anhang\u002Frichtlinien-grundeinstellungen","Defaults and privacy settings","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-grundeinstellungen",null,1793199126163]