This chapter covers the following topics:
“I have noticed that nothing I never said ever did me any harm.” —Calvin Coolidge
Chapter 12, “Application Inspection,” devotes a great deal of attention to the study of application-level inspection on both IOS-based firewalls and on the Adaptive Security Appliance (ASA). This chapter applies this knowledge to the specific tasks related to protecting IP Telephony (IPT) signaling protocols.
As a matter ...