Cisco Router DPC/EPC2425 DOCSIS User Manual

4028315 Rev A    51  
  How Do I Configure My DOCSIS Residential Gateway?
   
Configuring and Enabling TC P and UDP Port Filters 
Use the Setup Advanced Settings - Port Filtering page to configure and enable TCP 
and UDP port filters. These filters preven t a range of TCP/UDP ports from accessing 
the Internet. You can also prevent PCs fr om sending outgoing TCP/UDP traffic to 
the WAN on specific IP port numbers. This  filter is not IP address- or MAC address-
specific. The system blocks the specified...

52    4028315 Rev A  
How Do I Configure My DOCSIS Residential Gateway?   
Configuring Port Forwarding  for Local IP Addresses 
Use the Setup Advanced Settings - Port Forwarding page to configure port 
forwarding for local IP addresses. Port forw arding allows you to run a server on the 
LAN by specifying the mapping of TCP/UDP ports to a local PC. You must a\
lso set 
up a fixed private LAN IP address for the destination device. 
Note:  If you are not familiar with the advanc ed settings detailed in...

4028315 Rev A    53  
  How Do I Configure My DOCSIS Residential Gateway?
   
2   In the first entry of the Port Forwarding  area of the page, enter the same IP 
address (192.168.0.5) in the Local IP Address field. 
3   In the same row, enter the appropriate  port numbers in the Start Port and End 
Port fields. 
4   In the same row, select the appropriate  protocol from the drop-down list in the 
Protocol field, and then select the box in the  Enable field. 
5   To add additional ports, repeat steps 1...

54    4028315 Rev A  
How Do I Configure My DOCSIS Residential Gateway?   
Setup Advanced Settings -  Port Triggers Page 
The following illustration is an example  of the Setup Advanced Settings - Port 
Triggers page. 
  
Setup Advanced Settings - Port  Triggers Page Description 
Use this link to enter and enable the port forwarding trigger and target range start 
and end ports along with protocol info rmation in the appropriate fields. The 
following example illustrates how to use the  port triggering...

4028315 Rev A    55  
  How Do I Configure My DOCSIS Residential Gateway?
   
Configuring the DMZ Host 
Use the Setup Advanced Settings - DMZ Host page to configure an IP address that is 
visible to the WAN. DMZ hosting is commonly referred to as “exposed host,” and 
allows you to specify the “default” recipi ent of WAN traffic that Network Address 
Translation (NAT) is unable to translate  to a known local PC. DMZ allows one IP 
address to be unprotected while others remain protected. 
Note:  If you...

56    4028315 Rev A  
How Do I Configure My DOCSIS Residential Gateway?   
Configuring VPN Termination 
Use the Setup Advanced Settings - VPN Termination page to configure VPN 
protocols and manage VPN tunnels. A VPN is a connection between two endpoints 
in different networks that allows private da ta to be sent securely and transparently 
over public networks or other private ne tworks. With a VPN, you can send data 
securely between these two locations or netw orks. This is accomplished by creating a...

4028315 Rev A    57  
  How Do I Configure My DOCSIS Residential Gateway?
   
Setup Advanced Settings - VPN Te rmination - Blank Status Page 
The following illustration is an example of  a blank Setup Advanced Settings - VPN 
Termination - Status page. No VPN tunnels are configured. 
  
Setup Advanced Settings - VPN Termin ation - Status Page with VPN 
Tunnel Configured 
The following illustration is an example  of the Setup Advanced Settings - VPN 
Termination - Status page with a VPN tunnel...

58    4028315 Rev A  
How Do I Configure My DOCSIS Residential Gateway?   
 
Field Name  Description 
IPsec Endpoint  Enables/disables  the IP sec endpoint mode 
Name  Displays the user-defined tunnel name entered from the VPN Setup  page 
Status  Displays the current connect ion state (Connected/NOT Connected) 
Control  Displays one of the following  three keys based on the current tunnel 
enable and connection state: 
ƒ  Enable 
ƒ Connect 
ƒ Endpoint disabled 
Configure  Displays Edit or Delete keys...

4028315 Rev A    59  
  How Do I Configure My DOCSIS Residential Gateway?
   
Creating and Configur ing IPsec VPN Tunnels 
To create and configure IPsec VPN tunnels, click  Add New Tunnel on the VPN 
Termination - Status page. The VPN Setup pa ge opens. The following illustration is 
an example of the VPN Setup page. 
   

60    4028315 Rev A  
How Do I Configure My DOCSIS Residential Gateway?   
Setup Advanced Settings - VP N Setup Page Description 
This section describes the section headin gs and field descriptions of the Setup 
Advanced Settings - VPN Setup page. This page allows you create, configure, and 
control IPsec VPN tunnels.  
Tunnel Section 
 
Field Name  Description 
Tunnel  Displays existing tunnels and allows each tunnel to be individually  configured 
Name  Displays the name of a group of se ttings for a...