Dns.GetHostAddresses（）返回一个奇怪的地址“:: 1” [英] Dns.GetHostAddresses() return a strange address "::1"

问题描述

 
 IPAddress localhost = Dns.GetHostAddresses（Dns.GetHostName（））[0] 
 

解决方案

地址:: 1是IPv4中的IPv6等价物127.0.0.1，即它是一个环回地址。它的存在只表示您在NIC上启用了IPv6（这是Windows Vista以来的默认设置）。

如果您不想处理IPv6地址，可以检查AddressFamily属性IPAddress返回;它将包含价值  AddressFamily.InterNetworkV6 for IPv6和AddressFamily.InterNetwork for IPv4。

HTH

--mc

 

IPAddress localhost = Dns.GetHostAddresses(Dns.GetHostName())[0]

解决方案

The address ::1 is the IPv6 equivalent of 127.0.0.1 in IPv4, i.e it's a loopback address. Its presence simply indicates that you enabled IPv6 on your NIC (that's the default since Windows Vista).

If you don't want to handle IPv6 addresses, you can check the AddressFamily property of the IPAddress returned; it will contain the value AddressFamily.InterNetworkV6 for IPv6 and AddressFamily.InterNetwork for IPv4.

HTH
--mc

 

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