Chapter 8
Neobit 1012VA-II ADSL Ethernet Router User’s Guide
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5. In the Global Address From and Global Address To fields,
type the starting and ending address that identify the pool of
public IP addresses that the private addresses should be
translated to. Or, type the same address in both fields (if you
also specified a single address in step 4).
6. Follow steps 7-12 under "The napt rule" on page 58 to
submit your changes.
The filter rule: Configuring a basic rule with additional criteria
Like the basic flavor, the filter flavor translates public and private IP
addresses on a one-to-one basis. The filter flavor extends the
capability of the basic rule. Refer to “The basic Rule” on page 63 for
a general description.
You can use the filter rule if you want an address translation to
occur only when your LAN computers initiate access to specific
destinations. The destinations can be identified by their IP
addresses, server type (such as FTP or Web server), or both.
Figure 25 shows the fields used to establish a filter rule.
Figure 25. NAT Rule
Add Page (filter Flavor)
Follow these instructions to add a filter rule (see steps 1-4 under
"The napt rule" on page 58 for specific instructions corresponding to
steps 1 and 2 below):
1. Display the NAT Rule – Add Page, select
FILTER
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
