Netgear C7100v High Speed Cable Modem Router User Manual

							Connect to the Network and Access the Modem Router 21
 AC1900 Cable Modem Voice Router
6. 
Click  the  Next  button.
7. Click  the  Next button.
The modem router connects to the Internet. The BASIC Home page displays 
 the status of 
the Internet connection. 
Access the Modem Router With the NETGEAR genie App
The genie app is the easy dashboard for managing, monitoring, and repairing your home  network. The genie app can help you with the following:
• Automatically repair common WiFi network problems.
• Easily 
manage modem router features like Live Parental Controls, guest access, Internet 
traffic meter, speed test, and more.
To use the genie app to access the modem router:
1. V
isit  the  NETGEAR  genie  web  page  at  NETGEAR.com/genie. 
2.  Follow 
the  onscreen  instructions  to  install  the  app  on  your  smartphone,  tablet,  or  computer.
3. Launch 
 the  genie  app.
The genie app dashboard page displays. 
						

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3
3.   Specify Your Internet Settings
Usually, the quickest way to set up the modem router to use your Internet connection is to allow 
the modem router to detect the Internet connection when you first access the modem router with 
a web browser. You can also customize or specify your Internet settings. 
This chapter contains the following sections:
•Specify the Cable Connection Starting Frequency 
•View Modem Router Initialization 
•Manually Set Up the Internet Connection 
•Specify an IPv6 Internet Connection 
•Change the MTU Size  
						

							Specify Your Internet Settings 23
 AC1900 Cable Modem Voice Router
Specify the Cable Connection Starting Frequency
The starting frequency is automatically generated. For most Internet connections, you do not 
need to specify this information. If you must enter a starting frequency, contact your Internet 
provider.
To change the starting frequency:
1.  Launch 
 a  web  browser  from  a  computer  or  mobile  device  that  is  connected  to  the 
network.
2.  T
ype  http://routerlogin.net  or http://192.168.0.1.
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.
The BASIC Home page displays.
4.  Select  Cable 
 Connection.
The page displays the status of all downstream and upstream channels.
5.  In 
the  Starting  Frequency  field,  type  a  number. 
6.  Click 
the  Apply  button.
Your settings are saved. 
						

							Specify Your Internet Settings 24
AC1900 Cable Modem Voice Router 
View Modem Router Initialization 
You can track the initialization procedure of the modem router and get details about the 
downstream and upstream cable channel. The time is displayed after the modem router is 
initialized.
The modem router automatically goes through the following steps in the provisioning  process:
1.  Scans 
and  locks  the  downstream  frequency  and  then  ranges  the  upstream  channels.
2. Obtains 
 a  WAN  address  for  the  modem  router.
3.  Connects 
 to  the  Internet.
To view the status of the modem router initialization:
1. Launch 
 a  web  browser  from  a  computer  or  mobile  device  that  is  connected  to  the 
network.
2.  T
ype  http://routerlogin.net  or http://192.168.0.1.
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.
The BASIC Home page displays.
4.  Select  Cable 
 Connection.
The Startup Procedure section displays the initialization progress. The page also displays 
the status of all downstream and upstream channels.(Scroll down to view all the 
channels.) The number of downstream and upstream channels that are locked depends 
on the number of channels that your Internet provider uses. 
						

							Specify Your Internet Settings 25
 AC1900 Cable Modem Voice Router
Manually Set Up the Internet Connection
In most situations, you do not need to change these settings. We recommend that you use 
the default settings for DHCP because most cable Internet services provide the IP address 
through DHCP.
To specify the Internet connection settings:
1. 
Launch 
 an  Internet  browser  from  a  computer  or  mobile  device  that  is  connected  to  the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
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.
The BASIC Home page displays.
4.  Select  ADV
 ANCED  >  Setup  >  Internet .
5. If  your  Internet  connection  requires  an  account  name  or  host  name,  type  it  in  the  Account 
Name  (If  Required)  field.
6.  If 
your  Internet  connection  requires  a  domain  name,  type  it  in  the  Domain  Name (If 
Required)  field. 
For the other sections in this page, the default settings usually 
 work, but you can change 
them.
7.  Select 
an  Internet  IP Address  radio  buttons:
•Get 
Dynamically from ISP . Your ISP uses DHCP to assign your IP address. Your ISP 
automatically assigns these addresses. 
						

							Specify Your Internet Settings 
26 AC1900 Cable Modem Voice Router 
•Use Static IP Address
address that your ISP assigned. The gateway is the ISP modem router to which your 
modem router connects.
8. Select  a  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
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary 
DNS server address is available, enter it also. 
9. Select  a  Router  MAC Address  radio  button:
•Use Default Address. Use the default MAC address.
•Use Computer MAC Address. The modem router captures and uses the MAC 
address of the computer that you are now using. You must use the one computer that 
the ISP allows.
•Use This MAC Address. Enter the MAC address that you want to use.
10. Click  the Apply  button.
Your settings are saved.
Chapter 11, 
Troubleshooting.
Specify an IPv6 Internet Connection
To specify an IPv6 Internet connection:
1. Launch  an  Internet  browser  from  a  computer  or  mobile  device  that  is  connected  to  the 
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
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.
The BASIC Home page displays. 
						

							Specify Your Internet Settings 27
 AC1900 Cable Modem Voice Router
4. 
Select  ADVANCED  > Advanced  Setup  >  IPv6 .
If your Internet provider supports IPV6, the System Delegated Prefix field displays IPv6 
information.
5.  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 DHCP client function.
• Auto Config. 
 This is the default setting.
This setting specifies how the modem router assigns IPv6 addresses to the home  network (the LAN).
6.  Complete 
 the  fields  in  the  Server  Settings  section.
7.  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. 
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: 
						

							Specify Your Internet Settings 28
AC1900 Cable Modem Voice Router 
•
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
- Y
ahoo email
- MSN portal
- America Online’
 s DSL service
• Y
ou use VPN and experience severe performance problems.
•Y
ou used a program to optimize MTU for performance reasons, and now you are 
experiencing 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.
To change the MTU size:
1.  Launch 
 an  Internet  browser  from  a  computer  or  mobile  device  that  is  connected  to  the 
network.
2.  T
ype  http://www.routerlogin.net  or http://www.routerlogin.com .
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.
The BASIC Home page displays.
4.  Select  ADV
 ANCED  >  Setup  >  WAN  Setup .  
						

							Specify Your Internet Settings 29
 AC1900 Cable Modem Voice Router
5. 
In  the  MTU  Size  field,  enter  a  value  from  64  to  1500.
6.  Click 
the  Apply  button.
Your settings are saved.
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, 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 use large email attachments, for example.
  
						

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4.   Control Access to the Internet
ect your home network from 
unwanted intrusions from the Internet.
This chapter includes the following sections:
•Set Up Parental Controls 
•Block Access to Your Network 
•Use Keywords to Block Internet Sites 
•Block Services From the Internet 
•Schedule When to Block Internet Sites and Services 
•Avoid Blocking on a Trusted Computer 
•Set Up Security Event Email Notifications 
•Manage Services 
•Enable or Disable NAT