Configuring a Dynamic IPoA Interface

To configure dynamic IPoA interfaces:

Configure a physical interface.
host1(config)#interface atm 5/0
Configure an ATM subinterface.
host1(config-if)#interface atm 5/0.1
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
Assign a profile. For more information, see Dynamic Interface Configuration Using a Profile.
host1(config-subif)#profile ip foo
(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
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

(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

Configuring a Dynamic IPoA Interface

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