Cisco Router DPC3925 User Manual

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 Control Access to the Gateway 
 
Section Field Description 
 Inactivity Time 
60 minutes [Factory default when a user is created. Otherwise, it is 0 (zero)]. 
Enter the amount of time during a user session where there is no Internet access activity, 
indicating that the user is no longer online. If the inactivity timer is triggered, the user 
session will be closed automatically. In order to regain Internet access, the user must log in 
again with their User Name and Password....

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Configure Applications and Gaming 
 
Configure Applications and Gaming 
Overview 
Most well-known Internet applications are supported by Application Layer 
Gateways (ALGs). ALGs automatically adjust the gateway firewall to allow data to 
pass without making any custom settings. We recommend that you test your 
application before making changes in this section. 
Applications & Gaming > Port Filtering 
Use this window to configure transmission control protocol (TCP) and user 
datagram...

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 Configure Applications and Gaming 
 
Section Field Description   
Port Filtering Start Port: 
This is the beginning of the port range. Enter the beginning of the 
range of port numbers (external ports) used by the server or Internet 
application. Check with the software documentation of the Internet 
application for more information if necessary. 
End Port: 
This is the end of the port range. Enter the end of the range of port 
numbers (external ports) used by the server or Internet...

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Configure Applications and Gaming 
 
 
Applications and Gaming Port Range Forward Page Description 
Use the descriptions and instructions in the following table to configure the port 
range forwarding for the residential gateway. Select enable for each. After you make 
your selections, click Save Settings to apply your changes or Cancel Changes to 
cancel. 
Section Field Description   
Port Range Forwarding Start 
For the Start port, select a port from the recommended 49152 - 
65535...

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 Configure Applications and Gaming 
 
Applications & Gaming > Port Range Triggering 
Port range triggering is a way to dynamically forward ports to a LAN PC that needs 
them at a particular time. That particular time is when it runs a certain application 
that performs some event that trigger the router. This event must be an outbound 
access of a particular port range. 
Select the Port Range Triggering tab to open the Applications & Gaming Port Range 
Triggering page....

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Configure Applications and Gaming 
 
Section Field Description   
End Port 
For the End port, select a port from the recommended 49152 - 
65535 range. Keep in mind that ports used are program specific 
so check which ones the program requires to be forwarded. 
Protocol 
Select one of the following protocols: 
 TCP 
 UDP 
 Both 
Enable 
Click the Enable checkbox to enable port range triggering for 
the relevant application.  
Applications & Gaming > DMZ 
Use this page to configure...

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 Configure Applications and Gaming 
 
Applications and Gaming DMZ Page Description 
Use the descriptions and instructions in the following table to configure the port 
range triggering for the residential gateway. Select enable for each DMZ Host IP 
address. After you make your selections, click Save Settings to apply your changes 
or Cancel Changes to cancel. 
Section Field Description  
DMZ DMZ Hosting 
Select the desired option: 
 Enable  
 Disable (factory default) 
DMZ Host IP...

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Manage the Gateway 
 
Manage the Gateway 
Administration > Management 
The Administration Management page allows the network’s administrator to 
manage specific gateway functions for access and security. Select the Management 
tab to open the Administration Management page. 
Important: The following page displays when DHCP (factory default) is the 
Connection Mode. The page that displays when Static IP is selected is shown and 
described later in this section. 
 
Administration...

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 Manage the Gateway 
 
Field Description  
Gateway Setup 
(WAN) 
Internet Connection 
Type 
 
 
 
 
 
 
Connection Mode This setting allows you to determine how the 
WAN (or gateway interface to the Internet) obtains its IP address. 
DHCP (factory default) 
Allows the gateway to obtain a public IP address automatically 
 
Static IP 
Allows you to specify the WAN IP address and corresponding 
server information as static or fixed values that will be used 
whenever the gateway goes...

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Manage the Gateway 
 
Field Description  
 
 
 
 
 
 
 
 
 
 
 
 
MTU 
 
 
 
Gateway Access 
Local Access 
Internet IP Address 
Enter the gateway’s IP address (as seen from the Internet) 
Subnet Mask 
Enter the gateway’s subnet mask (as seen from the Internet, 
including your service provider) 
Default Gateway 
Enter the default gateway of the service provider’s server 
Primary DNS 
Enter the primary domain name server IP address(es) provided by 
your service provider. This is...