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    Configuring a PPP or PPPoE Dynamic Interface over an ATM 1483 Subinterface

    To configure an ATM 1483 subinterface to support a PPP or PPPoE dynamic interface:

    1. Configure a physical interface.
      host1(config)#interface atm 5/0
    2. Configure an ATM 1483 subinterface.
      host1(config-if)#interface atm 5/0.1
    3. Configure a PVC by specifying the virtual circuit descriptor, the virtual path identifier, the virtual channel identifier, and the encapsulation type. For more information, see Creating a PVC on an ATM 1483 Subinterface.
      host1(config-subif)#atm pvc 10 10 22 aal5snap

      If you want the router to autodetect the encapsulation type, use the aal5autoconfig option.

      host1(config-subif)#atm pvc 10 10 22 aal5autoconfig
    4. Assign a profile to the PPP or PPPoE encapsulation types.
      host1(config-subif)#profile ppp foo host1(config-subif)#profile pppoe foo
    5. Configure the subinterface to detect and accept dynamic PPP or PPPoE. For more information, see Configuring a Dynamic Interface over an ATM 1483 Subinterface.
      host1(config-subif)#auto-configure ppp host1(config-subif)#auto-configure pppoe

      In addition to ppp and pppoe, you can also specify ip or bridgedEthernet.

    6. (Optional) Verify your configuration. For more information, see Monitoring Status or Summary Information for ATM Subinterfaces.
      host1#show atm subinterface atm 5/0.1
                                     Circuit                           Interface
      Interface ATM-Prot VCD VPI VCI  Type   Encap MTU      Status       Type
      --------- -------- --- --- --- ------- ----- ---- -------------- ---------
      ATM 5/0.1 RFC-1483  10  10  22 PVC     SNAP  9180 lowerLayerDown Static
      
      Auto configure status         : dynamic
      Auto configure interface(s)   : PPP  PPPoE
      Detected 1483 encapsulation   : none
      Detected dynamic interface    : none
      Interface types in lockout    : none
      
      Lockout state (seconds)       : Min Max Current Elapsed Next
      ------------------------------- --- --- ------- ------- ----
      PPP                               1 300       0       0    1
      PPPoE                             1 300       0       0    1
      
      Assigned profile (IP)         : none assigned
      Assigned profile (BridgedEnet): none assigned
      Assigned profile (PPP)        : foo
      Assigned profile (PPPoE)      : foo
      Assigned profile (any)        : none assigned
      
      SNMP trap link-status: disabled
      Assigned VC Class: none assigned
      
      InPackets:                0
      InBytes:                  0
      OutPackets:               0
      OutBytes:                 0
      InErrors:                 0
      OutErrors:                0
      InPacketDiscards:         0
      InPacketsUnknownProtocol: 0
      OutDiscards:              0
      InPolicedPackets:         0
      OutPolicedPackets:        0
      1 interface(s) found

    Published: 2014-08-14