ZyXEL Communications 2WE manual 18

ZyWALL 2 and ZyWALL 2WE

Figure 12-1 How NAT Works.......................................................................................................................	12-3
Figure 12-2 NAT Application With IP Alias .................................................................................................	12-4
Figure 12-3 Menu 4: Applying NAT for Internet Access..............................................................................	12-7
Figure 12-4 Menu 11.3: Applying NAT to the Remote Node .......................................................................	12-8
Figure 12-5 Menu 15: NAT Setup ................................................................................................................	12-9
Figure 12-6 Menu 15.1: Address Mapping Sets ...........................................................................................	12-9
Figure 12-7 Menu 15.1.255: SUA Address Mapping Rules .......................................................................	12-10
Figure 12-8 Menu 15.1.1: First Set.............................................................................................................	12-11
Figure 12-9 Menu 15.1.1.1: Editing/Configuring an Individual Rule in a Set............................................	12-13
Figure 12-10 Menu 15.2: NAT Server Setup ..............................................................................................	12-16
Figure 12-11 Multiple Servers Behind NAT Example................................................................................	12-16
Figure 12-12 NAT Example 1.....................................................................................................................	12-17
Figure 12-13 Menu 4: Internet Access & NAT Example ............................................................................	12-17
Figure 12-14 NAT Example 2.....................................................................................................................	12-18
Figure 12-15 Menu 15.2: Specifying an Inside Server ...............................................................................	12-19
Figure 12-16 NAT Example 3.....................................................................................................................	12-20
Figure 12-17 Example 3: Menu 11.3 ..........................................................................................................	12-21
Figure 12-18 Example 3: Menu 15.1.1.1 ....................................................................................................	12-21
Figure 12-19 Example 3: Final Menu 15.1.1 ..............................................................................................	12-22
Figure 12-20 Example 3: Menu 15.2 ..........................................................................................................	12-22
Figure 12-21 NAT Example 4.....................................................................................................................	12-23
Figure 12-22 Example 4: Menu 15.1.1.1: Address Mapping Rule .............................................................	12-24
Figure 12-23 Example 4: Menu 15.1.1: Address Mapping Rules...............................................................	12-24
Figure 12-24 Trigger Port Forwarding Process: Example ..........................................................................	12-25
Figure 12-25 Menu 15.3—Trigger Port Setup............................................................................................	12-26
Figure 13-1 ZyWALL Firewall Application .................................................................................................	13-3
Figure 13-2 Three-Way Handshake ..............................................................................................................	13-5

xviii List of Figures