Configuring a Dynamic IPoA Interface

To configure dynamic IPoA interfaces:

1. Configure a physical interface.
   host1(config)#interface atm 5/0
2. Configure an ATM subinterface.
   host1(config-if)#interface atm 5/0.1
3. Configure a PVC by specifying the VCD, the VPI, the VCI, and the encapsulation type.
   host1(config-subif)#atm pvc 10 10 22 aal5snap

   If you want the router to autodetect the encapsulation type, use the aal5autoconfig option. For more information, see Creating a PVC on an ATM 1483 Subinterface.

   host1(config-subif)#atm pvc 10 10 22 aal5autoconfig
4. Assign a profile. For more information, see Dynamic Interface Configuration Using a Profile.
   host1(config-subif)#profile ip foo
5. (Optional) Assign subscriber identification. For more information, see Configuring a Local Subscriber for a Dynamic IPoA or Bridged Ethernet Interface.
   host1(config-subif)#subscriber ip user charlie domain myispname password lucy
6. Do either of the following:
   • Configure the subinterface to detect and accept the dynamic IP encapsulation type using the default lockout time range, 1–300 seconds. For more information, see Configuring a Dynamic Interface over an ATM 1483 Subinterface.
     host1(config-subif)#auto-configure ip
   • Configure the subinterface to detect and accept the dynamic IP encapsulation type using a nondefault lockout time range. For example, the following command configures 3600 seconds (1 hour) as the minimum lockout time and 7200 seconds (2 hours) as the maximum lockout time.
     host1(config-subif)#auto-configure ip lockout-time 3600 7200
7. (Optional) Verify your configuration.

   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)   : IP
   Detected 1483 encapsulation   : none
   Detected dynamic interface    : none
   Interface types in lockout    : none
   
   Lockout state (seconds)       : Min  Max  Current Elapsed Next
   ------------------------------- ---- ---- ------- ------- ----
   IP                              3600 7200       0       0 3600
   
   Assigned profile (IP)         : foo
   Assigned profile (BridgedEnet): none assigned
   Assigned profile (PPP)        : none assigned
   Assigned profile (PPPoE)      : none assigned
   Assigned profile (any)        : none assigned
   
   IP subscriber info            :
   Username: charlie@myispname
   Password: lucy
   Authenticate: enabled
   
   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