Adding Sensors to a Sensor Group

Adding Sensors to a Sensor Group

1. From the Management Center for IDS Sensors page (Figure 10.9), select the Devices tab, then choose Sensors.

2. The Sensor page will appear as shown in Figure 10.14. Click the Add button.

   
   Figure 10.14: The Sensor Page

3. The Select Group page will appear, as shown in Figure 10.15. Select the Group to add the sensor to and click Next.

   
   Figure 10.15: The Select Sensor Group Page

4. The Enter Sensor Information page appears, as shown in Figure 10.16. Enter the IP Address of the sensor, the NAT Address of the sensor if one exists, and the Sensor Name. To retrieve sensor settings directly from the sensor, select the Discover Settings check box. Enter the User ID and Password for Secure Shell (SSH) communications. For sensor appliances and IDS modules, the default user ID is cisco. The default password for the account is cisco. It is also possible to authenticate to the IDS sensor using an SSH public/private key pair. To use existing SSH keys, check the Use Existing SSH keys check box. However, do not select this option if the sensor is to be used as a master blocking sensor. Once the information has been entered, click Next to move on to the final step.

   
   Figure 10.16: The Enter Sensor Information Page

5. The Sensor Information page appears, as shown in Figures 10.17 and 10.18. From the Version pull-down menu, select the sensor software version installed on the sensor. Enter a text Comment. For sensors running the IDS sensor software version 3.x, additional information needs to be entered. This information includes the sensor Host ID, which is typically the last octet of the sensor's IP address. Enter the Org Name using only lowercase letters. Enter the Org ID. The default is 100. Within a Postoffice domain, with no sensor or sensor group, the Org ID/Host ID pair must be unique. For Sensor software version 4.x and later, a text comment need only be entered in the Comment field. Click Finish.

   
   Figure 10.17: The Sensor Information Page for Sensor OS Version 3.x

   
   Figure 10.18: The Sensor Information Page for Sensor OS Version 4.x

6. The Sensor page reappears, updated with an entry for the new sensor you have added, as shown in Figure 10.19.

   
   Figure 10.19: The Updated Sensor Page