Cisco Cisco Tunnel Terminating Gateway (TTG) Troubleshooting Guide
Mobile IP Configuration Examples
Example 1: Mobile IP Support Using the System as a GGSN/FA ▀
Cisco ASR 5000 Series Gateway GPRS Support Node Administration Guide ▄
OL-22943-01
Required
Information
Information
Description
Destination
context name
context name
This is an identification string between 1 and 79 characters (alpha and/or numeric) by which the destination
context will be recognized by the system.
context will be recognized by the system.
NOTE: For this configuration, the destination context name should not match the domain name of a specific
domain.
domain.
PDN Interface Configuration
PDN interface
name
name
This is an identification string between 1 and 79 characters (alpha and/or numeric) by which the interface will
be recognized by the system.
be recognized by the system.
Multiple names are needed if multiple interfaces will be configured.PDN interfaces are configured in the
destination context.
destination context.
IP address and
subnet
subnet
These will be assigned to the PDN interface.
Multiple addresses and/or subnets are needed if multiple interfaces will be configured.
Physical port
number
number
This specifies 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.
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.
Physical port
description
description
This is an identification string between 1 and 79 characters (alpha and/or numeric) by which the physical port
will be recognized by the system.Multiple descriptions are needed if multiple ports will be used.
will be recognized by the system.Multiple descriptions are needed if multiple ports will be used.
Physical ports are configured within the destination context and are used to bind logical PDN interfaces.
Gateway IP
address(es)
address(es)
Used when configuring static routes from the PDN interface(s) to a specific network.
How This Configuration Works
The following figure and the text that follows describe how this configuration with a single source and destination
context would be used by the system to process a Mobile IP data call.
context would be used by the system to process a Mobile IP data call.