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  1. system says:


    please help me with IPv6 default route.

    for example:

    Futura(config)#ipv6 route ::/0 fastEthernet 0/0 FE80::CE0A:22FF:FED5:0

    so ::/0 means, any address, where must match 0 bytes.

    Is my example of default route correct?

    Thank you

  2. Hi,

    Using ::/0 for the default route is correct. The :: part means all 0s and the /0 represents the network mask, not the bytes.


  3. Ok first question. In you post you have the following below. YOu will notice its pointing to :2:2 however there is no :2:2 network on any of the routers is this a typo did you mean to say :23:23::??? also its a 64 instead of a 128 which is what the loopback is. However maybe all addresses are held within the 128?? So your just pointing to a non-existent address knowing that since the one is a prefix of 128 that can hold all addresses so its being sent that way. very cryptic though and I wanted to confirm.

    if this is just a typo then you might want to fix that one and the one below it to as both refer to a :2:2 where none exist.

    also my follow up question is this. a floating route just means you have two static routes and if one goes down there is another one so that is called a floating static route?

  4. Hello Brian

    It seems that @ReneMolenaar is using the 2001:2:2::/64 prefix for the L0 interface on R2 in the first diagram, but when he adds R3 to the topology, he changes it to 2001:23:23::/64. I’ll let him know to change it so that it is consistent all the way through the lesson, either 2:2 or 23:23, including the routing tables.

    Yes. A floating static route is essentially a backup route that is statically configured to have a higher administrative distance than the primary route. This primary route can be a static route as well, or a dynamically configured route. It is the backup static route that is referred to as the floating static route. Note that this is a concept that is used in both IPv4 and IPv6 networks.

    I hope this has been helpful!


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