# Foreign Agent Advertisement Configurations

## Navigation

1. Right-click the device, and select Configure. The Device Configuration dialog box appears.
2. Select Foreign Agent Advertisement Configurations from the Category list.

The following information appears:

> Interfaces Index (ifIndex)

> Advertisement Status (cmiFaAdvertIsBusy)

> Registration Required (cmiFaAdvertRegRequired)

> Last Challenge Values (cmiFaAdvertChallengeWindow)

### Interfaces Index (ifIndex)

A unique value, greater than zero, for each interface. The value for each interface sublayer must remain constant at least from one reinitialization of the entity's network management system to the next reinitialization.

### Advertisement Status (cmiFaAdvertIsBusy)

Indicates whether the foreign agent is busy. When set to true (1), agent advertisements sent by the agent on this interface will have the B bit set to 1.

### Registration Required (cmiFaAdvertRegRequired)

Specifies whether foreign agent registration is required on this interface. When set to true (1), agent advertisements sent on this interface will have the R bit set to 1.

### Last Challenge Values (cmiFaAdvertChallengeWindow)

Specifies the number of last challenge values that can be used by the mobile node in the registration request sent to the foreign agent on this interface.