Juniper JUNOSE 11.1.X - BROADBAND ACCESS CONFIGURATION GUIDE 6-4-2010 Configuration Manual page 630

JUNOSe 11.1.x Broadband Access Configuration Guide
ip auto-detect ip-subscriber
ip destination-prefix
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Subscriber Management Commands
Use to configure an IP interface to support creation of dynamic subscriber
interfaces. The specified IP interface is considered the primary interface.
The router creates the required dynamic subscriber interfaces when the IP address
is assigned to the associated subscriber. The address might be assigned by an
external DHCP server, the DHCP local server, or the packet detect feature.
Use the include-primary keyword to specify that the primary interface can be
assigned to a subscriber. Use the exclude-primary keyword to specify that the
primary interface cannot be used for subscribers. The primary interface is not
assigned to a subscriber by default.
You can issue this command from Interface Configuration mode, Subinterface
Configuration mode, or Profile Configuration mode.
Example
host1(config-if)#ip auto-configure ip-subscriber include-primary
Use the no version to disable creation of dynamic subscriber interfaces associated
with this primary IP interface. Use the no version with the include-primary
keyword to specify that the primary interface is not assigned to a subscriber.
Use the no version with the exclude-primary keyword to specify that the primary
interface is assigned to a subscriber.
See ip auto-configure ip-subscriber
Use to set the router packet detect feature and specify that IP automatically
detect packets that do not match any entries in the demultiplexer table. When
an unmatched packet is detected, an event is generated that determines whether
to create a dynamic subscriber interface or configure an existing interface.
You can issue this command from Interface Configuration mode or Profile
Configuration mode.
Example
host1(config-if)#ip auto-detect ip-subscriber
Use the no version to restore the default, in which packet detection is disabled.
See ip auto-detect ip-subscriber
Use to specify a destination address for a subscriber interface or for a primary
IP interface.
Use the deny keyword to drop all packets that match the command.
On the ERX1440 Broadband Services Router or the E320 router, you can configure
up to 1024 subnets for static subscriber interfaces per primary IP interface when
each subnet has a variable network mask that is less than /32. The number of
subnets identifying a single route (/32) is still limited by the global maximum of
16,000 hosts per line module.
Example