Cisco Cisco IOS Software Release 12.4(2)XB6 テクニカルリファレンス

To enable ingress address filtering, use the cdma pdsn ingress-address-filtering command in global 
configuration mode. To disable ingress address filtering, use the no form of this command.

This command has no arguments or keywords.

Ingress address filtering is disabled.

Global configuration

When this command is configured, the PDSN checks the source IP address of every packet received on 
the PPP link from the mobile station. If the address is not associated with the PPP link to the mobile 
station and is not an MIP RRQ or Agent Solicitation, then the PDSN discards the packet and sends a 
request to reestablish the PPP link.

The following example enables ingress address filtering:

cdma pdsn ingress-address-filtering

12.1(3)XS

This command was introduced.

Displays the current status and configuration of the PDSN gateway.

Displays the session information on the PDSN.