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Specify Your Internet Settings
36
AC1750
Smart
WiFi
Router
5.
In the
Internet Connection Type
menu, select
Fixed
.
6.
Configure the fixed IPv6 addresses for the WAN connection:
IPv6 Address/Prefix Length
. The IPv6 address and prefix length of the router WAN
interface.
Default IPv6 Gateway
. The IPv6 address of the default IPv6 gateway for the router’s
WAN interface.
Primary DNS Server
. The primary DNS server that resolves IPv6 domain name
records for the router.
Secondary DNS Server
. The secondary DNS server that resolves IPv6 domain
name records for the router.
Note:
If you do not specify the DNS servers, the router uses the DNS servers
that are configured for the IPv4 Internet connection on the Internet
Setup page. (See
Manually Set Up the Internet Connection
on
page
23.)
7.
Select an IP Address Assignment radio button:
Use DHCP Server
. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCv6 client function.
Auto Config
. This is the default setting.
This setting specifies how the router assigns IPv6 addresses to the devices on your home
network (the LAN).
8.
In the
IPv6 Address/Prefix Length
fields, specify the static IPv6 address and prefix length
of the router’s LAN interface.
If you do not specify an ID here, the router generates one automatically from its MAC
address.
9.
Click the
Apply
button.
Your settings are saved.
Page 37 / 178
Specify Your Internet Settings
37
AC1750
Smart
WiFi
Router
Set Up an IPv6 DHCP Internet Connection
To set up an IPv6 Internet connection with a DHCP server:
1.
Launch an Internet browser from a computer or wireless device that is connected to the
network.
2.
Type
or
.
A login window opens.
3.
Enter the router 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 > Advanced Setup > IPv6
.
The IPv6 page displays.
5.
In the
Internet Connection Type
menu, select
DHCP
.
The 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 router’s WAN (or Internet) 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.
Router’s IPv6 Address on LAN
. This field shows the IPv6 address that is acquired
for the 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.
6.
Select an IPv6 Domain Name Server (DNS) Address radio button:
Get Automatically from ISP
. Your ISP uses DHCP to assign your DNS servers. Your
ISP automatically assigns this address.
Page 38 / 178
Specify Your Internet Settings
38
AC1750
Smart
WiFi
Router
Use These DNS Servers
. If you know that your ISP requires specific servers, select
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.
7.
(Optional) In the
User Class (If Required)
field, enter a host name.
Most people can leave this field blank, but if your ISP gave you a specific host name,
enter it here.
8.
(Optional) In the
Domain Name (If Required)
field, enter a domain name.
You can type 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, type xxx.yyy.zzz
as the domain name. If your ISP provided a domain name, type it in this field. For
example, Earthlink Cable might require a host name of home, and Comcast sometimes
supplies a domain name.
9.
Select an IP Address Assignment radio button:
Use DHCP Server
. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCv6 client function.
Auto Config
. This is the default setting.
This setting specifies how the router assigns IPv6 addresses to the devices on your home
network (the LAN).
10.
(Optional) Select the
Use This Interface ID
check box and specify the interface ID that you
want to be used for the IPv6 address of the router’s LAN interface.
If you do not specify an ID here, the router generates one automatically from its MAC
address.
11.
Click the
Apply
button.
Your settings are saved.
Set Up an IPv6 PPPoE Internet Connection
To set up a PPPoE IPv6 Internet connection:
1.
Launch an Internet browser from a computer or wireless device that is connected to the
network.
2.
Type
or
.
A login window opens.
3.
Enter the router 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 > Advanced Setup > IPv6
.
The IPv6 page displays.
Page 39 / 178
Specify Your Internet Settings
39
AC1750
Smart
WiFi
Router
5.
In the
Internet Connection Type
menu, select
PPPoE
.
6.
Enter the settings that your service provider gave you.
If your service provider gave you only one user name and password, the service provider
most likely supports dual stack PPPoE (a single PPP session). If the service provider
gave you two user names and passwords for IPv4 and IPv6, then the router must use
different PPP session.
To use separate PPP sessions (the default setting), leave the
Use the same Login
information as IPv4 PPPoE
check box cleared and complete the PPP
Login
and
Password
fields.
To use a single PPP session to establish the IPv4 and IPv6 Internet connection,
select the
Use the same Login information as IPv4 PPPoE
check box.
The page adjusts and the router automatically detects the information in
Router’s
IPv6 Address on WAN
field. Go to
Step
10
.
Note:
If you do not see the
Use the same Login information as IPv4
PPPoE
check box, make sure that
PPPoE
is selected from the
Internet Service Provider
menu on the Internet Setup page. For
more information, see
Specify an Internet Connection That Uses a
Login
on page
25.
The
Router’s IPv6 Address on WAN
field shows the IPv6 address that is acquired for
the router’s WAN (or Internet) 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.
The
Router’s IPv6 Address on LAN
field shows the IPv6 address that is acquired for
the 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.
In the
Login
field, enter the login information for the ISP connection.
Page 40 / 178
Specify Your Internet Settings
40
AC1750
Smart
WiFi
Router
This is usually the name that you use in your email address. For example, if your main
mail account is [email protected], you would type JerAB in this field. Some ISPs (like
Mindspring, Earthlink, and T-DSL) require that you use your full email address when you
log in. If your ISP requires your full email address, type 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.
Note:
The default setting of the
Connection Mode
menu is
Always On
to
provide a steady IPv6 connection. The router never terminates the
connection. If the connection is terminated, for example, when the
modem is turned off, the router attempts to reestablish the connection
immediately after the PPPoE connection becomes available again.
10.
Select an IPv6 Domain Name Server (DNS) Address radio button:
Get Automatically 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 requires specific servers, select
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.
11.
Select an IP Address Assignment radio button:
Use DHCP Server
. This method passes more information to LAN devices, but some
IPv6 systems might not support the DHCv6 client function.
Auto Config
. This is the default setting.
This setting specifies how the router assigns IPv6 addresses to the devices on your home
network (the LAN).
12.
(Optional) Select the
Use This Interface ID
check box and specify the interface ID that you
want to be used for the IPv6 address of the router’s LAN interface.
If you do not specify an ID here, the router generates one automatically from its MAC
address.
13.
Click the
Apply
button.
Your settings are saved.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
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.

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