Allow ICMPv6 Ping Reply
Windows unfortunately blocks certain ICMPv6 packets by default. This becomes a nuisance when troubleshooting and testing IPv6 networking from a Windows system.
Permit ICMPv6 in Windows 10
Open Start / Run then type:
Press Enter or click OK to open a Microsoft Management Console with the Windows Defender Firewall with Advanced Security snap-in
From the Firewall settings select Inbound Rules and click New Rule… On the Rule Type page, select Custom and click
Select All programs and click
Change Protocol type to ICMPv6 then click
Leave the Scope unchanged and click
Next > (Default scope is Any IP address)
Ensure Allow the connection is selected then click
Select your required profiles and click
Enter a name, we went with Permit All ICMPv6 and click Finish
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