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Types of IPv6 addresses with respect to Global/Local.

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  • Types of IPv6 addresses with respect to Global/Local.

    Global Unicast address: These are public routable IP addresses. They are unique on the internet.
    First three bits are fixed 001, which creates 2::/3 or 3::/3.
    All Global unicast Public Routable addresses will start from 2 or 3.
    Initially 2 is selected.
    Eg. 2000::/3
    Unique Local Unicast: These are like private IP addresses in IPv4. Difference is they are unique on the internet. They are non-routable.
    These addresses are used for LAN. They start with FC0.
    Fist seven bits 1111 110 are fixed.
    FC00::/7
    Link Local Unicast: These are also private IP addresses. They are MAC based. It means They are derived from MAC address and as MAC addresses are unique, so these are unique. They are non-routable. These IP addresses starts with FE80. These are used only in Autoconfig mode.
    First seven bits 1111 1110 00 are fixed.
    FE80::/10
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