Cisco Cisco Packet Data Interworking Function (PDIF)
Subscriber Configuration Mode Commands
ip source-validation ▀
Command Line Interface Reference, StarOS Release 18 ▄
8867
ip source-validation
Enables or disables packet source validation for the current subscriber. Source validation requires that the source
address of the received packets match the IP address assigned to the subscriber (either statically or dynamically) during
the session.
address of the received packets match the IP address assigned to the subscriber (either statically or dynamically) during
the session.
If an incorrect source address is received from the mobile node, the system attempts to renegotiate the PPP session. The
parameters for IP source validation can be set by the
parameters for IP source validation can be set by the
ip source-violation
command.
Product
All
Privilege
Security Administrator, Administrator
Mode
Exec > Global Configuration > Context Configuration > Subscriber Configuration
configure > context context_name > subscriber { default | name subscriber_name }
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-subscriber)#
Syntax
[ no ] ip source-validation
no
Disables source validation.
ip source-validation
Enables source validation.
Usage
Source validation is useful if packet spoofing is suspected or for verifying packet routing and labeling within
the network.
the network.
Example
The following command enables IP source validation:
ip source-validation
The following command disables IP source validation:
no ip source-validation