Cisco ASR 5000 Series Administration Manual page 99

GGSN Configuration Example
Required Information
Domain Name Service
(DNS) information
(optional)
IP address allocation
method
IP address pool name
IP destination context
name
Maximum number of
PDP contexts
PDP type
Verification selection
mode
DHCP Interface Configuration (optional)
DHCP interface name
IP address and subnet
Gateway IP address
Physical port number
OL-22944-02
Description
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. 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 1500000. The default is
1000000.
The type of PDP contexts supported by the APN. The type can be IPv4, IPv6, both IPv4 and IPv6, or
PPP. IPv4 support is enabled by default.
The level of verification that will be used to ensure a MS‟s subscription to use the APN. The GGSN
uses any of the following methods:
No verification and MS supplies APN
No verification and SGSN supplies APN
Verified by SGSN (default)
An identification string from 1 to 79 characters (alpha and/or numeric) by which the interface will be
recognized by the system.
Multiple names are needed if multiple interfaces will be configured.
These will be assigned to the DHCP interface and be bound to the DHCP service.
Multiple addresses and/or subnets are needed if multiple interfaces will be configured.
Used when configuring static routes from the DHCP interface(s) to a specific network.
The physical port to which the interface will be bound. Ports are identified by the chassis slot number
where the line card resides in, followed by the number of the physical connector on the line card. For
example, port 17/1 identifies connector number 1 on the card in slot 17.
A single physical port can facilitate multiple interfaces.
Cisco ASR 5000 Series Gateway GPRS Support Node Administration Guide ▄
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