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    Configuring the IPCP Lockout Option for Each PPP Interface

    You can optionally terminate invalid IPv4 subscribers and prevent additional IPCP negotiations. The subscriber can negotiate IPv4 addresses, IPv6 addresses, or both. When Internet Protocol version 6 Control Protocol (IPv6CP) is active, this command enables unused IPv4 addresses, which are allocated for the IPv6 subscribers, to be available for the IPCP services for an internally defined time interval (10 seconds). When the time interval elapses, the subscriber must connect again to negotiate IPCP. You can terminate the invalid IPv4 subscribers from the Interface Configuration mode, the Subinterface Configuration Mode, and the Profile Configuration Mode.

    To terminate invalid IPv4 subscribers and configure the IPCP lockout option for each PPP interface:

    • (Optional) From the Subinterface Configuration mode, enable the IPCP lockout option:
      host1(config-subif)#ppp ipcp lockout

      Use the no version to disable the IPCP lockout option on the interface.

    Published: 2014-08-14