ZyWALL 2 Series User’s Guide

28.4.1 Internet Access Only

In the following Internet access example, you only need one rule where all your ILAs (Inside Local addresses) map to one dynamic IGA (Inside Global Address) assigned by your ISP.

Figure 28-10 NAT Example 1

Menu 4 - Internet Access Setup

ISP's Name= ChangeMe

Encapsulation= Ethernet

Service Type= Standard

My Login= N/A

My Password= N/A

Retype to Confirm= N/A

Login Server= N/A

Relogin Every (min)= N/A

IP Address Assignment= Dynamic

IP Address= N/A

IP Subnet Mask= N/A

Gateway IP Address= N/A

Network Address Translation= SUA Only

Press ENTER to Confirm or ESC to Cancel:

Figure 28-11 Menu 4: Internet Access & NAT Example

From menu 4 shown above, simply choose the SUA Only option from the Network Address Translation field. This is the Many-to-One mapping discussed in section 28.4. The SUA Only read-only option from the Network Address Translation field in menus 4 and 11.3 is specifically pre-configured to handle this case.

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NAT