Netgear Dm200 Broadband High Speed Dsl Modem User Manual

If you do not specify an ID here, the modem generates one automatically from its MAC address.
9. Clic
k the Apply button.
Y

our settings are saved.
Use Auto Config for an IPv6 Internet Connection
To set up an IPv6 Internet connection through autoconfiguration: 1.
Launch a web browser from a computer that is connected to the network.
2. Enter 
http://www.routerlogin.net.
A login window opens.
3. Enter the 
modem user name and password.
The user name is 
admin. The default password is password. The user...

indicated by the underline (_) under the IPv6 address. If no address is acquired, the field displays
Not Available.
• Router’s IPv6 Address on LAN. This field shows the IPv6 address that is acquired for the modem’s
LAN interface. The number after the slash (/) is the length of the prefix, which is also i\
ndicated by
the underline (_) under the IPv6 address. If no address is acquired, the field displays Not Available.
6. (Optional) In the DHCP User Class (If Required) field, enter a host name.
Most...

Leave the MTU unchanged unless one of these situations occurs:
•
You experience problems connecting to your ISP or other Internet service, and the technical support of
either the ISP or NETGEAR recommends changing the MTU setting. These web-based applications
might require an MTU change:
- A secure website that does not open or displays only part of a web page
- Yahoo email
• You use VPN and experience severe performance problems.
• You used a program to optimize MTU for performance reasons and now you...

Change the MTU Size
WARNING:An incorrect MTU setting can cause Internet communication problems. For
example, you might not be able to access certain websites, frames within
websites, secure login pages, or FTP or POP servers. Change the MTU only
if you are sure that it is necessary for your ISP connection. To change the MTU size:
1.
Launch a web browser from a computer that is connected to the network.
2. Enter http://www.routerlogin.net.
A login window opens.
3. Enter the modem user name and password....

4
Manage the WAN and LAN Network
Settings
This chapter describes how you can manage the WAN and LAN network settings of the modem.
The chapter includes the f
ollowing sections:
• Manage the WAN Security Settings
 on page 56
• Manage NA
T Filtering
 on page 56
• Manage the SIP Application-Le
vel Gateway on page 
57
• Manage IGMP Proxying on page 57
• Manage the Modem’

s LAN IP Address Settings on page 58
• Manage the Router Inf

ormation Protocol Settings
 on page 59
• Manage Reser
ved LAN IP Addresses...

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 enabled and a port scan is rejected.
You can also enable the modem to respond to a ping to its WAN (Internet) port. This feature allows your
modem to be discovered. Enable this feature only as a diagnostic tool or if a specific reason exists....

The WAN Setup page displays.
5. Select a NAT Filtering radio button:
•Secured. Provides a secured firewall to protect the computers on the LAN from attacks from the
Internet but might prevent some Internet games, point-to-point applications, or multimedia applications
from functioning. By default, the 
Secured radio button is selected.
• Open
. Provides a much less secured firewall but allows almost all Internet applications to function.
6. Click the 
Apply button.
Your settings are saved.
Manage the SIP...

3.
Enter the modem user name and password.
The user name is 
admin. The default password is password. The user name and password are
case-sensitive.
The BASIC Home page displays.
4. Select 
ADVANCED > Setup > WAN Setup.
The 
WAN Setup page displays.
5. Clear the Disable IGMP Proxying
 check box.
By default, the 
Disable IGMP Proxying check box is selected and IGMP proxying is disabled.
6. Clic
k the Apply button.
Y

our settings are saved.
Manage the Modem’s LAN IP Address Settings The modem is...

4.
Select ADVANCED > Setup > LAN Setup. 5.
In the 
IP Address field, enter the LAN IP address for the modem.
6. In the 
IP Subnet Mask, enter the LAN subnet mask for the modem.
7. Clic
k the 
Apply button.
Your settings are saved.
If you changed the LAN IP address of the modem, you are disconnected when the changes take effect.
To reconnect, close your browser, relaunch it, and log in to the 
modem at its new LAN IP address.
Manage the Router Information Protocol Settings Router Information Protocol...

5.
From the RIP Direction menu, select the RIP direction:
• Both
. The modem broadcasts its routing table periodically and incorporates information that it
receives. This is the default setting.
• Out Only
. The modem broadcasts its routing table periodically but does not incorporate the RIP
information that it receives.
• In Only
. The modem incorporates the RIP information that it receives but does not broadcast its
routing table.
6. From the 
RIP Version menu, select the RIP version:
• Disabled
. The...