ZyXEL Communications 2 Plus manual 13

		Table of Contents
11.3.2 From VPN Packet Direction ...................................................................................		196
11.3.3 From VPN To VPN Packet Direction ......................................................................		198
11.4 Security Considerations ...................................................................................................		199
11.5 Firewall Rules Example ...................................................................................................		200
11.6 Asymmetrical Routes .......................................................................................................		201
11.6.1 Asymmetrical Routes and IP Alias .........................................................................		202
11.7 Firewall Default Rule (Router Mode) ................................................................................		202
11.8 Firewall Default Rule (Bridge Mode) ..............................................................................		204
11.9 Firewall Rule Summary ...................................................................................................		206
11.9.1 Firewall Edit Rule .................................................................................................		208
11.10 Anti-Probing ..................................................................................................................		211
11.11 Firewall Thresholds .....................................................................................................		212
11.11.1 Threshold Values ..................................................................................................		213
11.12 Threshold Screen ...........................................................................................................		213
11.13 Service ..........................................................................................................................		215
11.13.1 Firewall Edit Custom Service ..............................................................................		216
11.14 My Service Firewall Rule Example ................................................................................		217
Chapter 12
Content Filtering Screens ....................................................................................................		223
12.1	Content Filtering Overview ..............................................................................................	223
12.1.1 Restrict Web Features ...........................................................................................		223
12.1.2 Create a Filter List ..................................................................................................		223
12.1.3 Customize Web Site Access .................................................................................		223
12.2	Content Filtering with an External Database ...................................................................	223
12.3	Content Filter General Screen ........................................................................................	224
12.4	Content Filter Policy .....................................................................................................	227
12.5	Content Filter Policy: General .........................................................................................	229
12.6	Content Filter Policy: External Database ........................................................................	230
12.7	Content Filter Policy: Customization ...............................................................................	237
12.8	Content Filter Policy: Schedule ......................................................................................	239
12.9	Content Filter Object .....................................................................................................	240
12.10 Customizing Keyword Blocking URL Checking .............................................................		242
12.10.1 Domain Name or IP Address URL Checking .......................................................		242
12.10.2 Full Path URL Checking .......................................................................................		243
12.10.3 File Name URL Checking .....................................................................................		243
12.11 Content Filtering Cache ...............................................................................................		243
Chapter 13
Content Filtering Reports.....................................................................................................		245
13.1	Checking Content Filtering Activation ..............................................................................	245
13.2	Viewing Content Filtering Reports ...................................................................................	245
13.3	Web Site Submission .......................................................................................................	250
ZyWALL 2 Plus User’s Guide		13