Cisco Router DPC3925 User Manual

4021192 Rev B  51 
 
 Configure Wireless Settings 
 
Wireless > WDS Settings 
The Wireless Distribution System (WDS) Settings page allows you to expand the 
coverage of your wireless network by deploying signal repeaters.  Make sure the 
channel settings are the same for all WDS enabled devices.  
Select the WDS Settings tab to open the Wireless WDS Settings page. Use this page 
to configure the WDS settings. 
 
Wireless WDS Settings Page Description 
Use the descriptions and instructions in the...

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Configure Wireless Settings 
 
Wireless > QoS 
Quality of Service (QoS) ensures better service to high-priority types of network 
traffic, which may involve demanding, real-time applications, such as video 
conferencing. QoS settings allow you to specify priorities for different types of 
traffic. Lower priority traffic will be slowed down to allow greater throughput or 
less delay for high priority traffic. Select the QoS tab to open the Wireless QoS page. 
 
Wireless QoS Page...

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 Configure Wireless Settings 
 
Section Field Description   
No ACK 
Allows you to enable or disable NO ACK. This feature is 
recommended for data services where transmission is 
important and packet loss is tolerable to a certain degree. If 
you select Disable, an acknowledge packet is returned for 
every packet received. This provides a more reliable 
transmission, but it increases traffic load, which decreases 
performance. 
Select the desired option: 
 Enable 
 Disable (factory...

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Configure Security 
 
Configure Security 
Security > Firewall 
Advanced firewall technology deters hackers and protects the home network from 
unauthorized access. Use this page to configure a firewall that can filter out various 
types of unwanted traffic on the gateway’s local network. 
Select the Firewall tab to open the Security Firewall page. 
 
Use the descriptions and instructions in the following table to configure the firewall 
for your residential gateway. After you make...

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 Configure Security 
 
Section Field Description   
Filters Filter Proxy 
Enables/disables filter proxy. If local users have access to WAN proxy servers, they 
may be able to circumvent the content filters and access Internet sites blocked by 
the device. If you select the Filter Proxy feature, it will block access to any WAN 
proxy servers. 
Block Pop-Up Windows  
Enables/disables popup windows. Some commonly used applications employ 
popup windows as part of the application. If you...

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Configure Security 
 
Security > VPN Passthrough 
Use this page to configure Virtual Private Network (VPN) support. Enabling the 
settings on this page allows VPN tunnels using IPsec or PPTP protocols to pass 
through the gateways firewall. Select the VPN Passthrough tab to open the Security 
VPN Passthrough page. 
 
Use the descriptions and instructions in the following table to configure the VPN 
passthrough for your residential gateway. After you make your selections, click Save...

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 Configure Security 
 
Security > VPN 
A Virtual Private Network (VPN) is a connection between two endpoints in different 
networks that allows private data to be sent securely over public networks or other 
private networks. This is accomplished by creating a VPN tunnel. A VPN tunnel 
connects the two PCs or networks and allows data to be transmitted over the 
Internet as if it were on a private network. The VPN tunnel uses IPsec to encrypt the 
data sent between the two endpoints...

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Configure Security 
 
Security VPN Tunnel Page Description 
Use the descriptions and instructions in the following table to configure the VPN 
tunnel for your gateway. After you make your selections, click Save Settings to 
apply your changes or Cancel Changes to cancel. 
Section Field Description   
VPN Tunnel Select Tunnel Entry 
Allows you to display a list of created VPN tunnels 
Create Button 
Click this button to create a new tunnel entry 
Delete Button 
Click this button to...

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 Configure Security 
 
Section Field Description   
Remote 
Secure 
Gateway 
Select the desired option, IP Addr., Any, or FQDN. If the remote gateway has a 
dynamic IP address, select Any or FQDN. If Any is selected, then the Gateway will 
accept requests from any IP address. 
FQDN 
If FQDN is selected, enter the domain name of the remote gateway, so the 
Gateway can locate a current IP address using DDNS 
IP 
The IP address in this field must match the public (WAN or Internet) IP...

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Configure Security 
 
Section Field Description   
Key 
Management 
(continued) 
Select one of the following options for the key exchange method: 
 Auto (IKE) 
– Encryption: The Encryption method determines the length of the key used 
to encrypt/decrypt ESP packets. Notice that both sides must use the same 
method. 
– Authentication: The Authentication method authenticates the 
Encapsulating Security Payload (ESP) packets. Select MD5 or SHA. Notice 
that both sides (VPN endpoints)...