Netgear R6700 Nighthawk Ac1750 Smart Wifi Router Dual Band Gigabit User Manual

							Specify Your Internet Settings 
31  Nighthawk AC1750 Smart WiFi Router
8. 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).
9. (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.
10. Click the Apply button.
Your settings are saved.
Set Up an IPv6 6to4 Tunnel Internet Connection
The remote relay router is the router to which your router creates a 6to4 tunnel. Make sure 
that the IPv4 Internet connection is working before you apply the 6to4 tunnel settings for the 
IPv6 connection.
To set up an IPv6 Internet connection by using a 6to4 tunnel:
1. Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
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 screen displays.
4. Select ADVANCED > Advanced Setup > IPv6.
The IPv6 screen displays.
5. In the Internet Connection Type list, select 6to4 Tunnel. 
						

							Specify Your Internet Settings 32
Nighthawk AC1750
 Smart  WiFi Router 
The screen adjusts:
The router automatically detects the information in the Router’s IPv6 Address on LAN 
field. 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 f\
ield displays Not 
Available.
6.  Select a Remote 6to4 Relay Router radio button:
• Auto. 
Your router uses any remote relay router that is available on the Interne\
t. This 
is the default setting.
• Static IP 
 Address. Enter the static IPv4 address of the remote relay router. Your IPv6 
ISP usually provides this address.
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 devi\
ces on your home  network (the LAN).
8.  (Optional) Select the  Use This Interface ID check box and specify the interface ID 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.
9.  Click the  Apply button.
Your settings are saved.
Set Up an IPv6 Pass Through Internet Connection
In pass-through mode, the router works as a Layer 2 Ethernet switch with\
 two ports (LAN and 
WAN Ethernet ports) for IPv6 packets. The router does not process any IPv6 header packets. 
						

							Specify Your Internet Settings 
33  Nighthawk AC1750 Smart WiFi Router
To set up a pass-through IPv6 Internet connection:
1. Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
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 screen displays.
4. Select ADVANCED > Advanced Setup > IPv6.
The IPv6 screen displays.
5. In the Internet Connection Type list, select Pass Through.
The screen adjusts, but no additional fields display.
6. Click the Apply button.
Your settings are saved.
Set Up an IPv6 Fixed Internet Connection
To set up a fixed IPv6 Internet connection:
1. Launch an Internet browser from a computer or wireless device that is connected to the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
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 screen displays.
4. Select ADVANCED > Advanced Setup > IPv6.
The IPv6 screen displays.
5. In the Internet Connection Type list, select Fixed. 
						

							Specify Your Internet Settings 34
Nighthawk AC1750
 Smart  WiFi Router 
The screen adjusts:
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 screen. (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 devi\
ces 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. 
						

							Specify Your Internet Settings 35
 Nighthawk 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 co\
nnected to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
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 screen displays.
4.  Select  ADV
 ANCED > Advanced Setup > IPv6 .
The IPv6 screen displays.
5.  In the Internet Connection T
 ype list, select DHCP .
The screen adjusts:
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 (_) und\
er 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. I\
f no address is 
acquired, the field displays Not Available.
6.  (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 speci\
fic host name, 
enter it here. 
						

							Specify Your Internet Settings 
36 Nighthawk AC1750 Smart WiFi Router 
7. (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.
8. 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).
9. (Optional) Select the Use This Interface ID check box and specify the interface ID 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.
10. 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 http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
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 screen displays.
4. Select ADVANCED > Advanced Setup > IPv6.
The IPv6 screen displays.
5. In the Internet Connection Type list, select PPPoE. 
						

							Specify Your Internet Settings 37
 Nighthawk AC1750
 Smart WiFi Router
The screen adjusts: 
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 (_) und\
er 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. I\
f no address is 
acquired, the field displays Not Available.
6.  In the Login field, enter the login information for the ISP connection.
This is usually the name that you use in your email address. For example\
, if your main  mail account is JerAB@ISP
 .com, 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 fi\
eld.
7.  In the Password  field, enter the password for the ISP connection.
8.  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 field 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.
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. 
						

							Specify Your Internet Settings 
38 Nighthawk AC1750 Smart WiFi Router 
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 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.
Maximum Transmission Unit
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. 
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 have severe performance problems.
•You used a program to optimize MTU for performance reasons, and now you have 
connectivity or performance problems.
Note: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. 
						

							Specify Your Internet Settings 39
 Nighthawk AC1750
 Smart WiFi Router
Change the MTU Size
To change the MTU size:
1. Launch an Internet browser from a computer or wireless device that is co\
nnected to the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
A login screen displays.
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 screen displays.
4.  Select  ADV
 ANCED > Setup > WAN Setup . 
5. In the MTU Size field, enter a value from 64 to 1500.
6.  Click the  Apply button.
Your change is saved.
Common MTU Sizes
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   
MTUApplication
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 routers, adapters, an\
d switches.
1492 Used in PPPoE environments.
1472 Maximum size to use for pinging. (Larger packets are fragmented.) 
						

							Specify Your Internet Settings 
40 Nighthawk AC1750 Smart WiFi Router 
1468Used in some DHCP environments.
1460Usable by AOL if you do not use large email attachments, for example.
1436Used in PPTP environments or with VPN.
1400Maximum size for AOL DSL.
576Typical value to connect to dial-up ISPs.
Table 2.  Common MTU sizes  (continued)
MTUApplication