Configuring the Sensor to Block

In this section, let's delve into how to actually configure IP blocking step by step. As we mentioned earlier in the chapter, there are many different possibilities for network set-ups. Thus, different options may work poorly for one configuration, and well for another configuration. Since we have already decided on which signatures we will want to incorporate in our configuration, and we have specified our blocking devices and reviewed the option of utilizing master blocking on our network, our next steps will be configuring our sensors and routers. This will include configuring the blocking device, or router, for Telnet communications as well as preparing the sensor for which interface will need to be monitored.