라우터 트래픽 미러링
CONFIGURE YOUR SWITCH To be sure your IDS analyzes the data you want, you must mirror the traffic of a switch port or VLAN. For this, we will use the "port mirroring" mechanism which means the switch duplicates the traffic on your chosen interface or VLAN and send it to Snort. Of course, on your IDS system, you need at least one network interface to listen to the traffic, but if you can have two..