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1 example 1: internet access only, 2 example 2: internet access with an inside server, Figure 165 nat example 1 – ZyXEL Communications 660HW Series User Manual

Page 277: Figure 166 menu 4 internet access & nat example

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Prestige 660H/HW Series User’s Guide

Chapter 29 Network Address Translation (NAT)

276

29.5.1 Example 1: Internet Access Only

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

Figure 165 NAT Example 1

Figure 166 Menu 4 Internet Access & NAT Example

Menu 4 - Internet Access Setup
ISP's Name= MyISP
Encapsulation= RFC 1483
Multiplexing= LLC-based
VPI #= 8
VCI #= 35
ATM QoS Type= UBR
Peak Cell Rate (PCR)= 0
Sustain Cell Rate (SCR)= 0
Maximum Burst Size (MBS)= 0
My Login= N/A
My Password= N/A
ENET ENCAP Gateway= N/A
IP Address Assignment= Static
IP Address= 0.0.0.0
Network Address Translation= SUA Only
Address Mapping Set= N/A

Press ENTER to Confirm or ESC to Cancel:

From menu 4, choose the SUA Only option from the Network Address Translation field.
This is the Many-to-One mapping discussed in

Section 29.5 on page 275

. 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.

29.5.2 Example 2: Internet Access with an Inside Server

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