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This is usually the name that you use in your email address. For example, if your main mail account
is [email protected], you would enter JerAB in this field. Some ISPs (such as Earthlink) require that
you use your full email address when you log in. If your ISP requires your full email address, enter it
in this field.
8.
In the
Password
field, enter the password for the ISP connection.
9.
In the
Service Name
field, enter a service name.
If your ISP did not provide a service name, leave this field blank.
The default setting of the
Connection Mode
menu is
Always On
to provide a steady
IPv6 connection.The
modem router
never terminates the connection. If the connection
Note
is terminated, for example, when the modem is turned off, the
modem router
attempts
to reestablish the connection immediately after the PPPoE connection becomes
available again.
10.
Select an IP Address Assignment radio button:
•
Use DHCP Server
.The
modem router
assigns IPv6 addresses to the devices on your home network
(the LAN) through a DHCP server.This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCPv6 client function. This is the default setting.
•
Auto Config
. The
modem router
automatically configures its IPv6 address based on the IPv6
protocol.
11.
To specify the interface ID for the IPv6 address of the
modem router
’s LAN interface, select the
Use
This Interface ID
check box, and enter the interface ID.
If you do not specify an ID here, the
modem router
generates one automatically from its MAC address.
12.
Select the IPv6 filtering mode:
•
Secured
. In secured mode, which is the default mode, the
modem router
inspects both TCP and
UDP packets.
•
Open
. In open mode, the
modem router
inspects UDP packets only.
13.
Click the
Apply
button.
Your settings are saved.
Set Up an IPv6 Connection Through Auto Config
If your Internet connection does not use PPPoE, DHCP, a fixed IP address, or pass-through but is IPv6,
use the Auto Config connection type, which lets the
modem router
autoconfigure its IPv6 connection.
Manage the Internet Settings Manually
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000
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To set up an IPv6 Internet connection through auto-configuration:
1.
Launch an Internet browser from a computer or WiFi device that is connected to the network.
2.
Type
.
A login window opens.
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 page displays.
5.
Select
ADVANCED > Advanced Setup > IPv6
.
The IPv6 page displays.
6.
From the
Internet Connection Type
menu, select
Auto Config
.
The
modem router
automatically detects the information in the following fields:
•
Router’s IPv6 Address On WAN
. This field shows the IPv6 address that is acquired for the
modem router
’s WAN (or Internet) interface. The number after the slash (/) is the length of the
Manage the Internet Settings Manually
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000
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prefix, which is also 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
router
’s LAN interface. The number after the slash (/) is the length of the prefix, which is also
indicated by the underline (_) under the IPv6 address. If no address is acquired, the field displays
Not Available.
7.
If your ISP gave you a specific user class, in the
DHCP User Class (If Required)
field, enter the user
class.
If your ISP did not give you a specific user class, leave this field blank.
8.
To specify a domain name, in the
DHCP Domain Name
field, enter a domain name.
If your ISP gave you a specific domain name, enter it in this field. (For example, Earthlink Cable might
require a host name of
home
, and Comcast sometimes supplies a domain name.)
If your ISP did not give you a specific domain name, you can either leave this field blank or enter the
domain name of your IPv6 ISP. (Do not enter the domain name for the IPv4 ISP here.) For example,
if your ISP’s mail server is mail.xxx.yyy.zzz, enter xxx.yyy.zzz as the domain name.
9.
Select an IP Address Assignment radio button:
•
Use DHCP Server
.The
modem router
assigns IPv6 addresses to the devices on your home network
(the LAN) through a DHCP server.This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCPv6 client function.
•
Auto Config
. This is the default setting.
10.
To specify the interface ID for the IPv6 address of the
modem router
’s LAN interface, select the
Use
This Interface ID
check box, and enter the interface ID.
If you do not specify an ID here, the
modem router
generates one automatically from its MAC address.
11.
Select the IPv6 filtering mode:
•
Secured
. In secured mode, which is the default mode, the
modem router
inspects both TCP and
UDP packets.
•
Open
. In open mode, the
modem router
inspects UDP packets only.
12.
Click the
Apply
button.
Your settings are saved.
Manage the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
Manage the Internet Settings Manually
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000
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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.
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 9. Common MTU sizes
Application
MTU
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 router
s,
adapters, and switches.
1500
Used in PPPoE environments.
1492
Maximum size to use for pinging. (Larger packets are fragmented.)
1472
Used in some DHCP environments.
1468
Usable by AOL if you do not send or receive large email attachments, for example.
1460
Used in PPPoA environments.
1458
Manage the Internet Settings Manually
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Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000
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Application
MTU
Used in PPTP environments or with VPN.
1436
Maximum size for AOL DSL.
1400
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 an Internet browser from a computer or WiFi device that is connected to the network.
2.
Type
.
A login window opens.
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 page displays.
5.
Select
ADVANCED > Setup > WAN Setup
.
The WAN Setup page displays.
6.
In the
MTU Size
field, enter a value from 616 to 1500.
The normal MTU (maximum transmit unit) value for most Ethernet networks is 1500 bytes, 1492 bytes
for PPPoE connections, or 1436 for PPTP connections.
7.
Click the
Apply
button.
Your settings are saved.
Manage the Internet Settings Manually
100
Nighthawk AC1900 WiFi VDSL/ADSL Modem Router Model D7000

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