Shunning/Blocking on IPS for ASA/PIX/IOS Router Configuration Example Advanced Threat Detection feature – This feature does a bunch of things. It detects and alerts on activity that might be related to a Denial of Service attack or Scanning reconnaissance. Optionally, the ASA can automatically shun/block hosts that are detected as a scanning threat. Threat detection also can gather threat statistics for display on the new Firewall Dashboard inside the ASDM GUI. Top 10 graphs, charts, and lists for things like access list hits, services most used, and top IP SRC and IP DST hosts are tracked. On Cisco routers and Catalyst 6500 series switches, ARC creates blocks by applying ACLs or VACLs. ACLs and VACLs apply filters to interfaces, which includes direction, and VLANs, respectively in order to permit or deny traffic. . The PIX Firewall, FWSM, and ASA do not use ACLs or VACLs. The built-in shun and no shun command are used. # no shun <IP_Add
