Cisco Cisco Packet Data Gateway (PDG) Guida Alla Risoluzione Dei Problemi
NAT Configuration
Configuring NAT ▀
Cisco ASR 5000 Series Network Address Translation Administration Guide ▄
OL-22992-01
Configuring Private IP NPU Flow Timeout Setting
To configure Private IP NPU Flow Timeout setting, use the following configuration:
Notes:
By default, for NAT-enabled calls the downlink private IP NPU flow will not be installed at call setup for a
subscriber session. The flow will only be installed for uplink traffic on demand. When there is no traffic on the
private flow, the private IP flow will be removed after the configurable timeout period.
private flow, the private IP flow will be removed after the configurable timeout period.
Downlink traffic will be dropped after flow is deleted after the configurable timeout period.
Configuring Flow Recovery
To configure Flow Recovery parameters for NAT flows, use the following configuration:
Notes:
The
keyword specifies not to create data session/flow-related information for downlink-
initiated packets (from the Internet to the subscriber) while the downlink flow-recovery timer is running, but
send to subscriber.
send to subscriber.
Enabling NAT for
APN/
Subscribers
This section describes how to enable NAT support for APN/subscribers.
The following topics are covered in this section: