Table of Contents
7.8 QoS Screen ....................................................................................................................... 120
Chapter 8
8.1 NAT Overview ................................................................................................................... 125
8.1.1 NAT Definitions ........................................................................................................ 125
8.1.2 What NAT Does ....................................................................................................... 126
8.1.3 How NAT Works ....................................................................................................... 126
8.1.4 NAT Application ........................................................................................................ 126
8.1.5 NAT Mapping Types ................................................................................................. 127
8.3 NAT General Setup ........................................................................................................... 128
8.4 Port Forwarding ................................................................................................................. 129
8.6 Address Mapping .............................................................................................................. 133
Firewalls................................................................................................................................. 137
9.1 Firewall Overview ............................................................................................................. 137
9.2 Types of Firewalls .............................................................................................................. 137
9.4 Denial of Service ............................................................................................................... 139
9.4.1 Basics ....................................................................................................................... 139
9.5 Stateful Inspection ............................................................................................................. 142
9.5.3 TCP Security ............................................................................................................ 144
9.5.4 UDP/ICMP Security .................................................................................................. 145
9.6.1 Security In General .................................................................................................. 146
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P-660HW-D User's Guide