Manage the WAN and LAN Network Settings
AC1600 WiFi VDSL/ADSL Modem Router Model D6400
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 a web browser from a computer or WiFi device that is connected to the network.
2. Type http://www.routerlogin.net.
A login window opens.
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 page displays.
5. Select ADVANCED > Setup > WAN Setup.
The WAN Setup page displays.
6. To enable port scan and DoS protection, clear the Disable Port Scan and DoS Protection
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.
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