Netgear C6300 Ac1750 Wifi Cable Modem Router User Manual

Specify Internet Port Settings 
91  AC1750 WiFi Cable Modem Router
•Destination port number. 80, which is the standard port number for a web server 
process.
2. Your modem router receives the message and finds your port forwarding rule for incoming 
port 80 traffic. 
3. The modem router changes the destination in the message to IP address 192.168.0.123 
and sends the message to that computer.
4. Your web server at IP address 192.168.0.123 receives the request and sends a reply 
message to your modem...

Specify Internet Port Settings 92
AC1750 WiFi Cable Modem Router 
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 > Advanced Setup > Port Forwarding/Port Triggering.  
5.  Select the  Port T
 riggering radio button.
The Port Triggering page displays.
6.  Click the  Add Service button.
7. In the Service Name field,...

Specify Internet Port Settings 93
 AC1750 WiFi Cable Modem Router
Specify When to Use Port Triggering
To specify when to use port triggering: 
1. 
Launch a web browser from a computer or wireless device that is connecte\
d to the 
network.
2.  T
ype  http://routerlogin.net.
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...

Specify Internet Port Settings 
94 AC1750 WiFi Cable Modem Router 
Application Example: Port Triggering for Internet Relay Chat 
Some application servers, such as FTP and IRC servers, send replies to multiple port 
numbers. Using port triggering, you can tell the modem router to open more incoming ports 
when a particular outgoing port starts a session.
An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at 
destination port 6667. The IRC server not only responds to your...

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9
9.   Troubleshooting
This chapter gives information about troubleshooting your modem router. 
The chapter includes the following sections:
•Use LEDs to Troubleshoot 
•Cannot Log In to the Modem Router 
•Troubleshoot the Cable Internet Connection 
•Troubleshoot a TCP/IP Network Using a Ping Utility 
Tip:NETGEAR provides helpful articles, documentation, and the latest 
software updates at 
support.netgear.com. 

Troubleshooting 96
AC1750 WiFi Cable Modem Router 
Use LEDs to Troubleshoot
The following table provides help when you are using the LEDs for troubl\
eshooting.
Table 3.  Troubleshooting with the LEDs
LED BehaviorAction
All LEDS are off when the modem  router is plugged in. • 
Make sure that the power cord is properly connected to your 
modem router and that the power supply adapter is properly 
connected to a functioning power outlet. 
•  Make sure that you are using the 12 VDC power adapter from...

Troubleshooting 
97  AC1750 WiFi Cable Modem Router
Note:If the IP address of your computer is shown as 169.254.x.x: 
Recent versions of Windows and Mac OS generate and assign an IP 
address when the computer cannot reach a DHCP server. These 
autogenerated addresses are in the range of 169.254.x.x. If your IP 
address is in this range, check the connection from the computer to 
the modem router and reboot your computer.
•If the IP address of your modem router changed and you do not know its current IP...

Troubleshooting 
98 AC1750 WiFi Cable Modem Router 
Use Ping to Test the LAN Path to Your Modem Router
You can use ping to verify that the LAN path to your modem router is set up correctly.
To ping the modem router from a computer running Windows 95 or later:
1. From the Windows toolbar, click the Start button and select Run.
2. In the field that is provided, type ping and then the IP address of the modem router, as in 
this example:
ping 192.168.0.1
3. Click the OK button.
You see a message like the...

Troubleshooting 
99  AC1750 WiFi Cable Modem Router
where  is the IP address of a remote device such as the DNS server of your 
Internet provider.
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
3. If you do not receive this reply, check the following:
•Make sure that the Internet LED is lit.
•If your Internet provider assigned a host name to your computer, enter that host name 
as the account name on the Internet Setup page.
•Make sure that the IP...

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A
A.   Supplemental Information
This appendix includes the following sections:
•Factory Default Settings 
•Technical Specifications