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Edge browser does not utilize IPv6

Anonymous
2020-10-13T20:54:14+00:00

Hello

I am using edge chromium 86 and have a valid IPv6 assigned to my computer. However, edge browser does not resolve domain names to ipv6 addresses and will only attempt connecting using ipv4

Testing with ipv6-test.com on a fresh profile on edge, shows ipv6 connectivity as "not supported", however the same test works flawlessly on Firefox browser.

I found out that I can't open urls like (ipv6.google.com) on edge (works on firefox), but typing the ipv6 address [2a00:1450:400e:80e::200e] directly works fine, so I'm concluding there is a problem with dns, but I couldn't resolve it by switching to other dns providers.

Any help would be appreciated

Thank you

Microsoft Edge | Other | Windows 10

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  1. Anonymous
    2021-08-18T12:59:42+00:00

    To confirm you have indeed dual stack connectivity, you can open command line and try:

    PING /6 BING.COM

    PING /4 BING.COM

    Values may differ depending on your location but here they resolve to AAAA record [2620:1ec:c11::200] and A record 204.79.197.200 respectively.

    If you're not getting IPv6 name resolution, your immediate DNS server may not have IPv6 support. Try this in a command line:
    NSLOOKUP myip.opendns.com 2620:0:ccc::2
    If you don't get an IPv6 response, your DNS server is bad. In that case, configure windows to use [2620:0:ccc::2] as a DNS server or something similar like 1.1.1.1.

    Edge does work with IPv6, it just prioritises IPv4 name resolution first (to be clear technically, requests A records from DNS first rather than AAAA). If you try http://ip6only.me it will show you your IPv6 address if you have IPv6 connectivity (this DNS name only has AAAA record, not A).

    You can also try a "dual" test site like https://test-ipv6.com or https://ipv6-test.com and you can confirm both are running.

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