ZyXEL Communications P-660HW-T1 Chapter, Chapter, Chapter, Content Filtering, Firewall Configuration, Remote Management Configuration

	P-660H/HW/W-T Series User’ Guide
Chapter 11
Firewall Configuration .........................................................................................		132
11.1	Access Methods .............................................................................................	132
11.2	Firewall Policies Overview .............................................................................	132
11.3	Rule Logic Overview .....................................................................................	133
11.3.1 Rule Checklist .......................................................................................		133
11.3.2 Security Ramifications ..........................................................................		133
11.3.3 Key Fields For Configuring Rules .........................................................		134
	11.3.3.1 Action ...........................................................................................	134
	11.3.3.2 Service .........................................................................................	134
	11.3.3.3 Source Address ...........................................................................	134
	11.3.3.4 Destination Address ....................................................................	134
11.4	Connection Direction ......................................................................................	134
11.4.1 LAN to WAN Rules ................................................................................		134
11.4.2 Alerts .....................................................................................................		135
11.5	Configuring Default Firewall Policy ..............................................................	135
11.6	Rule Summary ..............................................................................................	136
11.6.1 Configuring Firewall Rules ..................................................................		138
11.7	Customized Services .....................................................................................	141
11.8	Configuring A Customized Service ...............................................................	141
11.9	Example Firewall Rule ....................................................................................	142
11.10 Predefined Services .....................................................................................		146
11.11 Anti-Probing .................................................................................................		148
11.12 DoS Thresholds ...........................................................................................		149
11.12.1 Threshold Values ................................................................................		150
11.12.2 Half-Open Sessions ............................................................................		150
	11.12.2.1 TCP Maximum Incomplete and Blocking Time ..........................	150
11.12.3 Configuring Firewall Thresholds .........................................................		151
Chapter 12
Content Filtering ..................................................................................................		154
12.1 Content Filtering Overview ............................................................................		154
12.2 The Main Content Filter Screen .....................................................................		154
12.3 Configuring Keyword Blocking .....................................................................		155
12.4 Configuring the Schedule .............................................................................		156
12.5 Configuring Trusted Computers ...................................................................		156
Chapter 13
Remote Management Configuration ..................................................................		158
13.1 Remote Management Overview ....................................................................		158
13.1.1 Remote Management Limitations .........................................................		158
13.1.2 Remote Management and NAT ............................................................		159
13.1.3 System Timeout ...................................................................................		159

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