Bad Mask for IP Address Error

  • I'm not too clear on subnetting rules and experienced an error when I tried to assign to an interface on my Cisco router. Can someone please explain why it was not allowing me to assign this address to the interface? I receive an error saying:

    Bad mask /28 for address

    Is it outside the permissible range?

    `I'm not too clear on subnetting rules` Where sub-netting is all over the Internet, so read about it first, then you wouldn't need to ask this question

  • If you are using /28 network mask then is the network address and therefore is not an assignable IP address for this subnet.

    For subnet the range of assignable IP address is to, as is the network address and is the broadcast address

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Content dated before 7/24/2021 11:53 AM