ZyXEL Communications ADSL 2+ Gateway P-660HW-T1 - Manual (Page 18)

P-660H/HW/W-T Series User’ Guide
Table of Contents 18
25.2 Configuration ..................................................................................................246
Chapter 26
Bridging Setup ..................................................................................................... 250
26.1 Bridging in General ........................................................................................250
26.2 Bridge Ethernet Setup ....................................................................................250
26.2.1 Remote Node Bridging Setup ...............................................................250
26.2.2 Bridge Static Route Setup .....................................................................252
Chapter 27
Network Address Translation (NAT) ................................................................... 254
27.1 Using NAT ......................................................................................................254
27.1.1 SUA (Single User Account) Versus NAT ..............................................254
27.2 Applying NAT .................................................................................................254
27.3 NAT Setup ......................................................................................................256
27.3.1 Address Mapping Sets ..........................................................................256
27.3.1.1 SUA Address Mapping Set .........................................................257
27.3.1.2 User-Defined Address Mapping Sets ..........................................258
27.3.1.3 Ordering Your Rules ....................................................................259
27.4 Configuring a Server behind NAT ..................................................................260
27.5 General NAT Examples ..................................................................................261
27.5.1 Example 1: Internet Access Only ..........................................................262
27.5.2 Example 2: Internet Access with an Inside Server ...............................262
27.5.3 Example 3: Multiple Public IP Addresses With Inside Servers .............263
27.5.4 Example 4: NAT Unfriendly Application Programs ...............................267
Chapter 28
Enabling the Firewall ........................................................................................... 270
28.1 Remote Management and the Firewall ..........................................................270
28.2 Access Methods .............................................................................................270
28.3 Enabling the Firewall ......................................................................................270
Chapter 29
Filter Configuration.............................................................................................. 272
29.1 About Filtering ................................................................................................272
29.1.1 The Filter Structure of the Prestige .......................................................273
29.2 Configuring a Filter Set for the Prestige .........................................................274
29.3 Filter Rules Summary Menus .........................................................................275
29.4 Configuring a Filter Rule ................................................................................276
29.4.1 TCP/IP Filter Rule .................................................................................277
29.4.2 Generic Filter Rule ................................................................................279
29.5 Filter Types and NAT .....................................................................................281
29.6 Example Filter ................................................................................................281