Cisco ASR 5000 Series Administration Manual page 149

GGSN and Mobile IP Service in a Single System Configuration Example
Table 13. Required Information for Destination Context Configuration
Required Information
Destination context
name
APN Configuration
APN name
Accounting mode
Authentication
protocols used
APN charging
characteristics (CC)
(optional)
Domain Name Service
(DNS) information
(optional)
IP address allocation
method
IP address pool name
IP destination context
name
Maximum number of
PDP contexts
OL-22944-02
Description
An identification string from 1 to 79 characters (alpha and/or numeric) by which the destination context
will be recognized by the system.
NOTE: For this configuration, the destination context name should not match the domain name of a
specific APN.
An identification string by which the APN will be recognized by the system. The name can be from 1 to
62 alpha and/or numeric characters and is not case sensitive. It may also contain dots ( . ) and/or dashes
( - ).
Multiple names are needed if multiple APNs will be used.
Selects the accounting protocol. GTPP or RADIUS are supported. In addition, accounting can be
completely disabled. The default is to perform accounting using GTPP.
NOTE: The examples discussed in this chapter assumes GTPP is used.
Specifies how the system handles authentication: using a protocol (such as CHAP, PAP, or MSCHAP),
or not requiring any authentication.
Specifies whether or not the GGSN accepts the CC from the SGSN for home, visiting, and roaming
subscribers.
By default the GGSN accepts the CC from the SGSN for all three scenarios.
If the GGSN is to use its own CC for any of these scenarios, then each scenario requires the
specification of behavior bits and a profile index to use.
NOTE: The profile index parameters are configured as part of the GGSN service.
If DNS will be used for the APN, IP addresses can be configured for primary and secondary DNS
servers.
Specifies how sessions facilitated by this APN will receive an IP address. IP addresses can be assigned
using one of the following methods:
Dynamic: Address can be dynamically assigned from one of the sources:
Dynamic Host Control Protocol (DHCP) server: The system can be configured to
act as a DHCP proxy and receive address from the server in advance and assign them
as needed or it can relay DHCP messages from the MS.
Local address pools The system can be configured with local address pools.
Static: MS IP addresses can be permanently assigned.
By default, the system is configured to either dynamically assign addresses from a local pool and/or
allow static addresses.
If addresses will be dynamically assigned from a locally configured private pool, the name of the pool
must be configured. If no name is configured, the system will automatically use any configured public
pool.
The name of the system destination context to use for subscribers accessing the APN. When supporting
Mobile IP, this is the name of the context containing the FA service configuration. If no name is
specified, the system automatically uses the system context in which the APN is configured.
The maximum number of PDP contexts that are supported for the APN.The maximum number can be
configured to any integer value from 1 to 1000000. The default is 1000000.
Cisco ASR 5000 Series Gateway GPRS Support Node Administration Guide ▄
Using the System as Both a GGSN/FA and an HA ▀