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I am trying to delete IP assigned to interface fa0/1. But it returns an error saying "Delete Secondary first"
i have alreay tried this command (config-if)# no ip address 192.168.5.23 255.255.255.0

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  • can we see sh run, please remove passwords.
    – xeon
    Jul 12, 2013 at 5:53

1 Answer 1

Reset to default
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You have a secondary IP address defined on the interface. Your configuration will have something in it like:

interface FastEthernet0/1
  ip address 192.168.5.23 255.255.255.0
  ip address 192.168.5.24 255.255.255.0 secondary

You will need to no out the secondary IP address first.

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