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Page 66 / 298 Scroll up to view Page 61 - 65
Vigor2930 Series User’s Guide
58
The inherent security properties of NAT are somewhat bypassed if you set up DMZ host.
We suggest you to add additional filter rules or a secondary firewall.
Click
DMZ Host
to open the following page:
If you previously have set up
WAN Alias
in
Internet Access>>PPPoE/PPPoA
or
Internet
Access>>MPoA,
you will find them in
Aux. WAN IP list
for your selection.
Enable
Check to enable the DMZ Host function.
Private IP
Enter the private IP address of the DMZ host, or click Choose PC
to select one.
Choose PC
Click this button and then a window will automatically pop up, as
depicted below. The window consists of a list of private IP
addresses of all hosts in your LAN network. Select one private IP
address in the list to be the DMZ host.
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igor2930 Series User’s Guide
59
When you have selected one private IP from the above dialog, the
IP address will be shown on the following screen. Click
OK
to
save the setting.
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Vigor2930 Series User’s Guide
60
3.3.3 Open Ports
Open Ports
allows you to open a range of
ports for the traffic of special applications.
Common application of Open Ports includes P2P application (e.g., BT, KaZaA, Gnutella,
WinMX, eMule and others), Internet Camera etc. Ensure that you keep the application
involved up-to-date to avoid falling victim to any security exploits.
Click
Open Ports
to open the following page:
Index
Indicate the relative number for the particular entry that you want to
offer service in a local host. You should click the appropriate index
number to edit or clear the corresponding entry.
Comment
Specify the name for the defined network service.
WAN Interface
Display the WAN interface for the entry.
Local IP Address
Display the private IP address of the local host offering the service.
Status
Display the state for the corresponding entry. X or V is to represent
the
Inactive
or
Active
state.
To add or edit port settings, click one index number on the page. The index entry setup page
will pop up. In each index entry, you can specify
10
port ranges for diverse services.
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igor2930 Series User’s Guide
61
Enable Open Ports
Check to enable this entry.
Comment
Make a name for the defined network application/service.
WAN Interface
Specify the WAN interface that will be used for this entry.
Local Computer
Enter the private IP address of the local host or click
Choose PC
to
select one.
Choose PC
Click this button and, subsequently, a window having a list of
private IP addresses of local hosts will automatically pop up. Select
the appropriate IP address of the local host in the list.
Protocol
Specify the transport layer protocol. It could be
TCP
,
UDP
, or
-----
(none) for selection.
Start Port
Specify the starting port number of the service offered by the local
host.
End Port
Specify the ending port number of the service offered by the local
host.
3.3.4 Address Mapping
This page is used to map specific private IP to specific WAN IP alias.
If you have "a group of IP Addresses" and want to apply to the router, please use WAN IP
alias function to record these IPs first. Then, use address mapping function to map specific
private IP to specific WAN IP alias.
For example, you have IP addresses ranging from 86.123.123.1 ~ 86.123.123.8. However,
your router uses 86.123.123.1, and the rest of the IPs are recorded in WAN IP alias. You
want that private IP 192.168.1.10 can use 86.123.123.2 as source IP when it sends packet out
to Internet. You can use address mapping function to achieve this demand. Simply type
192.168.1.10 as the Private IP; and type 86.123.123.2 as the WAN IP.
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Vigor2930 Series User’s Guide
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Protocol
Display the protocol used for this address mapping.
Public IP
Display the public IP address selected for this entry, e.g.,
172.16.3.102.
Private IP
Display the private IP set for this address mapping, e.g.,
192.168.1.10
Mask
Display the subnet mask selected for this address mapping.
Status
Display the status for the entry, enable or disable.
Click the index number link to open the configuration page.
Enable
Check to enable this entry.
Protocol
Specify the transport layer protocol. It could be
TCP
,
UDP
, or
ALL
for selection.
WAN Interface
Choose the WAN interface for such address mapping profile.
WAN IP
Select an IP address (the selections provided here are set in
IP
Alias List
of
Network >>WAN
interface). Local host can use this
IP to connect to Internet.
If you want to choose any one of the Public IP settings, you must

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