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Can anyone advise why I would add ::1 to a subnet in IPv6? In this case I am looking to use the global unicast address and not the link-local even though I would normally do this.I would add the 1 to avoid setting the subnet id as the interface id is that correct?


  • 1
    Please, never use an image for text. Simply copy the text and paste it into the question using the Preformatted-text option ({}). IPv6 does not have a subnet ID or broadcast address the way IPv4 does because IPv6 does not have the concept of broadcast. See this answer about that.
    – Ron Maupin
    Commented Jun 6, 2020 at 18:15
  • The text was part of the image and its my first post. A very detailed response and it has answered my question. Thanks.
    – treacle
    Commented Jun 6, 2020 at 22:29


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