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Forum Replies

  1. Hello,
    I hope you’re doing very well?
    I want to know [EUI/CAL/PRE] what does it mean please?


  2. Hello Djan

    These acronyms display several attributes of the IPv6 address, and are always displayed after the address itself. These are part of the output of the show ipv6 interface command. Specifically, the [EUI/CAL/PRE] acronyms you mention are indicating that:

    EUI - Extended Unique Identifier. The address was generated using EUI-64, a method by which the IPv6 address is derived from the MAC address of the interface.
    CAL - Calendar. This means that the address is timed and has valid and preferred lifetimes.
    PRE - Preferred. This timed address is preferre

    ... Continue reading in our forum

  3. Hello Marcos

    I don’t have a clear cut answer for you at the moment, however, doing some research, I’ve found the following Cisco documentation.


    Now I know that you yourself have gone through documentation as well, however, if I may add the following comments, it may steer you in the right direction.

    Among other useful information in this section, it states that:

    IPv6 routes are added when

    ... Continue reading in our forum

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