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Page 51 / 202 Scroll up to view Page 46 - 50
Manage the Internet Settings Manually
51
N600 and AC750 WiFi DSL Modem Routers
7.
From the
Encapsulation
menu, select
PPPoA (PPP over ATM)
.
8.
Enter the settings as described in the following table.
Field
Description
Login
Enter the login name that your ISP gave you. This login name is often an
email address.
Password
Enter the password that you use to log in to your Internet service.
Service Name (If Required)
Enter the service name that your ISP gave you. Often, a service name is
not required.
Connection Mode
From the
Connection Mode
menu, select
Always On
,
Dial on Demand
,
or
Manually Connect
.
Idle Timeout (In Minutes)
To change the number of minutes until the Internet login times out, enter
the number of minutes.
The idle time-out specifies how long the modem router keeps the Internet
connection active when no one on the network is using the Internet
connection. A value of 0 (zero) means never log out.
Page 52 / 202
Manage the Internet Settings Manually
52
N600 and AC750 WiFi DSL Modem Routers
9.
Click the
Apply
button.
Your settings are saved.
10.
Click the
Test
button to test your Internet connection.
If the NETGEAR website does not display within one minute, see
Troubleshoot the
Internet Connection
on page
191.
Manage the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
MTU Concepts
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path uses a lower MTU
setting than the other devices, the data packets must be split or “fragmented” to
accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default value. In some situations,
changing the value fixes one problem but causes another.
Internet IP Address
Get Dynamically from ISP
Your ISP uses DHCP to assign your IP address. Your ISP automatically
assigns these addresses.
Use Static IP Address
Your ISP assigned a static IP address. Enter the IP address and IP subnet
mask.
Domain Name Server (DNS) Address
The DNS server is used to look up site addresses based on their names.
Get Dynamically from ISP
Your ISP uses DHCP to assign your DNS servers. Your ISP automatically
assigns this address.
Use These DNS Servers
If you know that your ISP does not automatically transmit DNS addresses
to the modem router during login, select this option and enter the IP
address of your ISP primary DNS server. If a secondary DNS server
address is available, enter it also.
NAT (Network Address Translation)
NAT allows computers on your home network to share the modem router Internet connection. NAT is
enabled by default because it is needed in most situations. Select the NAT settings:
•
Enable
. NAT is enabled. This is the default setting.
•
Disable
. NAT is disabled.
Field
Description
Page 53 / 202
Manage the Internet Settings Manually
53
N600 and AC750 WiFi DSL Modem Routers
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
-
MSN portal
-
America Online’s DSL service
•
You use VPN and experience severe performance problems.
•
You used a program to optimize MTU for performance reasons and now you are
experiencing connectivity or performance problems.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
until the problem goes away. The following table describes common MTU sizes and
applications.
Table 2.
Common MTU sizes
MTU
Application
1500
The largest Ethernet packet size. This setting is typical for connections that do not use
PPPoE or VPN and is the default value for NETGEAR modem routers, adapters, and
switches.
1492
Used in PPPoE environments.
1472
Maximum size to use for pinging. (Larger packets are fragmented.)
1468
Used in some DHCP environments.
1460
Usable by AOL if you do not send or receive large email attachments, for example.
1436
Used in PPTP environments or with VPN.
1400
Maximum size for AOL DSL.
576
Typical value to connect to dial-up ISPs.
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.
Page 54 / 202
Manage the Internet Settings Manually
54
N600 and AC750 WiFi DSL Modem Routers
To change the MTU size:
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.
4.
Click the
OK
button.
The BASIC Home screen displays.
5.
Select
ADVANCED > Setup > WAN Setup
.
6.
In the
MTU Size
field, enter a value from 616 to 1500.
The default MTU (maximum transmit unit) value is 1500. The normal MTU value for most
Ethernet networks is 1500 bytes, or 1492 bytes for PPPoE connections.
7.
Click the
Apply
button.
Your settings are saved.
Page 55 / 202
55
4
4.
Manage the WiFi Network Settings
This chapter describes how you can manage the WiFi network settings of the modem router.
The chapter includes the following sections:
•
Manage the Basic WiFi Settings and WiFi Security of the Main Network
•
Use WPS to Add a Device to the WiFi Network
•
Manage the WiFi Settings and WiFi Security of the Guest Network
•
Control the WiFi Radios
•
Manage the WPS Settings
•
Manage Advanced WiFi Features
•
Manage Wi-Fi Multimedia Quality of Service
For information about setting up a WiFi access list and managing WiFi access, see
Set Up a
WiFi Access List and Manage WiFi Access
on page
97.

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