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Accepting IPv6 ICMP on UDM and USG routers

There’s no clear instruction on how to allow this via the Unifi Controller. On my UDM runningĀ the solution is to Accept IPv6-ICMP protocol on the WAN-IN interface of the Firewall. Most settings say to use the WAN-Local interface and the ICMPv6 protocol but I found that my setting is the one that allows thisĀ https://ipv6-test.com to pass. Note that running this web site test yields different results on Safari, Chrome and Firefox. Chrome passes 20/20, Safari gets 19/20 and Firefox gets 18/20 as at this date.