Configuring Ip Address Pooling - Cisco ASR 900 Series Configuration Manual

Configuring IP Address Pooling

Example
Router# configure terminal
Router(config)# interface serial 0/0/0
Router(config-if)# ppp authentication chap
Router(config-if)# aaa authentication ppp
Router(config-if)# exit
Router(config)# username name user-maxlinks 1 password password1
Router(config)# end
Configuring IP Address Pooling
You can define the type of IP address pooling mechanism used on router interfaces in one or both of the ways
described in the following sections:
For more information about address pooling, see the
Note
IOS XE Release 3S
Global Default Address Pooling Mechanism
The global default mechanism applies to all point-to-point interfaces that support PPP encapsulation and that
have not otherwise been configured for IP address pooling. You can define the global default mechanism to
be either DHCP or local address pooling.
To configure the global default mechanism for IP address pooling, perform the tasks in the following sections:
•
•
After you have defined a global default mechanism, you can disable it on a specific interface by configuring
the interface for some other pooling mechanism. You can define a local pool other than the default pool for
the interface or you can configure the interface with a specific IP address to be used for dial-in peers.
You can also control the DHCP network discovery mechanism; see the following section for more information:
•
Defining DHCP as the Global Default Mechanism
DHCP specifies the following components:
• A DHCP server—A host-based DHCP server configured to accept and process requests for temporary
• A DHCP proxy client—A Cisco access server configured to arbitrate DHCP calls between the DHCP
Perform this task to enable DHCP as the global default mechanism.
Time Division Multiplexing Configuration Guide, Cisco IOS XE Fuji 16.7.x (Cisco ASR 900 Series)
114
Defining DHCP as the Global Default Mechanism
Defining Local Address Pooling as the Global Default Mechanism
Controlling DHCP Network Discovery
IP addresses.
server and the DHCP client. The DHCP client-proxy feature manages a pool of IP addresses available
to dial-in clients without a known IP address.
PPP and Multilink PPP Configuration
IP Addressing Configuration Guide Library, Cisco