Wellink Corporation NEOBIT1014VA Manual Do Utilizador

The basic flavor translates the private (LAN-side) IP address to a 
public (WAN-side) address, like napt rules. However, unlike napt 
rules, basic rules do not also translate the port numbers in the 
packet header; they are passed through untranslated. Therefore, 
the basic rule does not provide the same level of security as the 
napt rule. 

Figure 34 shows the fields used for adding a basic rule. 

 

 

Follow these instructions to add an basic rule (see steps 1-4 under 
"The napt rule" on page 68 for specific instructions corresponding to 
steps 1 and 2 below): 

1.  Display the NAT Rule – Add Page, select BASIC as the Rule 

Flavor, and enter a Rule ID. 

2.  Select the interface on which this rule will be effective. 

3.  Select a protocol to which this rule applies, or choose ALL. 

This selection specifies which type of Internet communication 
will be subject to this translation rule. You can select ALL if the 
rule applies to all data. Or, select TCP, UDP, ICMP, or a 
number from 1-255 that represents the IANA-specified protocol 
number. 

4.  In the Local Address From and Local Address To fields, type 

the starting and ending IP addresses that identify the range 
of private address you want to be translated. Or, type the 
same address in both fields. 

If you specify a range, each address will be translated in 
sequence to a corresponding address in a range of global 
addresses (which you specify in step 5). 

You can create a basic rule for each specific address 
translation to occur. The range of addresses should correspond 
to private addresses already in use on your network, whether