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Page 201 / 292 Scroll up to view Page 196 - 200
Manage the WAN and LAN Network Settings
201
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
Set Up a Bridge for a Port Group or VLAN Tag Group
Some devices, such as an IPTV, cannot function behind the modem router’s network address
translation (NAT) service or firewall. Based on what your Internet service provider (ISP)
requires, for the device to connect to the ISP’s network directly, you can enable the bridge
between the device and the modem router’s Internet port or add new VLAN tag groups to the
bridge.
Note:
If your ISP provides directions on how to set up a bridge for IPTV and
Internet service, follow those directions.
Set Up a Bridge for a Port Group
If the devices that are connected to the modem router’s Ethernet LAN port or WiFi network
include an IPTV device, your ISP might require you to set up a bridge for a port group on
interface WAN1.
A bridge with a port group prevents packets that are sent between the IPTV device and the
modem router’s Internet port from being processed through the modem router’s network
address translation (NAT) service.
To configure a port group and enable the bridge:
1.
Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2.
Type
.
A login screen displays.
3.
Enter the user name and password for the modem router.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > VLAN/Bridge Settings
.
The VLAN/Bridge Settings screen displays.
6.
Select the
Enable VLAN/Bridge Group
check box.
The screen expands.
7.
Select the
By bridge group
radio button.
Page 202 / 292
Manage the WAN and LAN Network Settings
202
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
8.
Select a
Wired Ports
check box or a
Wireless
check box:
•
If your device is connected to an Ethernet port on the modem router, select the
Wired
Ports
check box that corresponds to the Ethernet port on the modem router to which
the device is connected.
•
If your device is connected to your modem router’s WiFi network, select the
Wireless
check box that corresponds to the router’s WiFi network to which the device is
connected.
Note:
You must select at least one
Wired Ports
or
Wireless
check box. You
can select more than one check box.
9.
Click the
Apply
button.
Your settings are saved.
Set Up a Bridge for a VLAN Tag Group
If the devices that are connected to the modem router’s Ethernet LAN port or WiFi network
include an IPTV device, your ISP might require you to set up a bridge for a VLAN tag group.
A bridge with a VLAN tag group prevents packets that are sent between the IPTV device and
the modem router’s Internet port from being processed through the modem router’s network
address translation (NAT) service.
You can add VLAN tag groups to a bridge and assign VLAN IDs and priority values to each
VLAN tag group.
Page 203 / 292
Manage the WAN and LAN Network Settings
203
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
To add a VLAN tag group and enable the bridge:
1.
Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2.
Type
.
A login screen displays.
3.
Enter the user name and password for the modem router.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > VLAN/Bridge Settings
.
The VLAN/Bridge Settings screen displays.
6.
Select the
Enable VLAN/Bridge Group
check box.
By default, the
By VLAN tag group
radio button is selected.
7.
Click the
Add
button.
Page 204 / 292
Manage the WAN and LAN Network Settings
204
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
8.
Specify the settings as described in the following table.
Field
Description
Name
Enter a name for the VLAN tag group.
The name can be up to 10 characters.
VLAN ID
Enter a value from 1 to 4094.
Priority
Enter a value from 0 to 7.
Select the check box for a wired LAN port or WiFi port.
If your device is connected to an Ethernet port on the modem router, select the LAN port check box that
corresponds to the Ethernet port on the modem router to which the device is connected.
If your device is connected to your modem router’s WiFi network, select the WiFi check box that
corresponds to the router’s WiFi network to which the device is connected.
9.
Click the
Add
button.
The VLAN tag group is added.
10.
Click the
Apply
button.
Your settings are saved.
Manage the WAN Security Settings
The WAN security settings include port scan protection and denial of service (DoS)
protection, which can protect your LAN against attacks such as Syn flood, Smurf Attack, Ping
of Death, and many others. By default, DoS protection is disabled and a port scan is rejected.
You can also enable the modem router to respond to a ping to its WAN (Internet) port. This
feature allows your modem router to be discovered. Enable this feature only as a diagnostic
tool or if a specific reason exists.
To change the default WAN security settings:
1.
Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2.
Type
.
A login screen displays.
3.
Enter the user name and password for the modem router.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > WAN Setup
.
Note:
You must select at least one LAN port or WiFi port. You can select more than one port.
Page 205 / 292
Manage the WAN and LAN Network Settings
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AC1600 WiFi VDSL/ADSL Modem Router Model D6400
The WAN Setup screen displays.
6.
To enable port scan and DoS protection, clear the
Disable Port Scan and DoS Protection
check box.
Note:
Enabling port scan and DoS protection might affect the performance of
the modem router.
7.
To enable modem router to respond to a ping, select the
Respond to Ping on Internet
Port
check box.
8.
Click the
Apply
button.
Your settings are saved.
Set Up a Default DMZ Server
The default DMZ server feature is helpful when you are using some online games and
videoconferencing applications that are incompatible with Network Address Translation
(NAT). The modem router is programmed to recognize some of these applications and to
work correctly with them, but other applications might not function well. In some cases, one
local computer can run the application correctly if the IP address for that computer is entered
as the default DMZ server.
WARNING:
DMZ servers pose a security risk. A computer designated as the
default DMZ server loses much of the protection of the firewall and
is exposed to exploits from the Internet. If compromised, the DMZ
server computer can be used to attack other computers on your
network.
The modem router usually detects and discards incoming traffic from the Internet that is not a
response to one of your local computers or a service or application for which you set up a
port forwarding or port triggering rule. Instead of discarding this traffic, you can direct the
modem router to forward the traffic to one computer on your network. This computer is called
the default DMZ server.
To set up a default DMZ server:
1.
Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2.
Type
.
A login screen displays.
3.
Enter the modem router user name and password.
The user name is
admin
. The default password is
password
. The user name and
password are case-sensitive.

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