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Is is possible to check if a server is accessible via IPv6 with c#?
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Checking IPv6 Communication To verify whether a PC is already actively using IPv6, use a web browser to navigate to http://test-ipv6.com. This test site will return a fully-qualified IPv6 address in the second Summary bullet point.
IPv6 Compatibility Checker tool verifies if a domain is using IPv6 on their network. This tool queries the domain's DNS Records to check if the IPv6 DNS Records resolves properly and returns some valid value or not. Just enter a domain and this tool instantly checks the IPv6 Compatibility against a given domain.
By using I-P. show, you can check whether you are: On an IPv4 supported device here: https://v4.i-p.show. On an IPv6 supported device here: https://v6.i-p.show.
IPv4 & IPv6 are both IP addresses that are binary numbers. IPv4 is 32 bit binary number while IPv6 is 128 bit binary number address. IPv4 address are separated by periods while IPv6 address are separated by colons.
Traverse the address list returned from Dns.GetHostEntry and check if any of the IsIPv6xxxx properties is set to true
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It depends on what you mean - if you know (or can resolve) the server's hostname or DNS name to an IPv6 address, it should be possible for you to do a couple of things.
You could either send a test packet using IPv6 to the server and see if you get a response back. Alternatively, if you're going IPv6 all the way, you could change your own network layer to be IPv6 only. On newer releases of Windows server I believe you can switch IPv6 on and IPv4 off.
Hope that helps!
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