Cisco Router DPC/EPC2425 DOCSIS User Manual

							
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Field Name  Description 
Secondary 
DNS 
(static IP 
only)  Manual entry is required. Your ISP will provide the 
information for you to enter into this field. 
MTU Size  Sets the size of the maximum transmission unit (MTU) for the 
network interface. The default value is 0 (zero) 
Important: Do not change this value unless you are an 
experienced user. 
Function Keys 
The following function keys appear on the Setup Basic Settings - Network 
Configuration page. 
Key Description 
Renew WAN 
IP Address 
Lease  Forces a release and renewal of your WAN IP address 
Apply  Saves the values you enter into the fields without closing the 
screen 
 
Configuring and Managing IP Addresses 
Use the Setup Basic Settings - IP Managemen t page to configure how your system 
manages and assigns IP addresses in your network. 
Note:  If you are not familiar with the IP  management procedures detailed in this 
section, contact your service provider  before you attempt to change any of the 
residential gateway default IP management settings. 
Click  LAN IP Address Management  in the Basic Settings section of the Setup page 
to access the Setup Basic Settings - IP Management page. 
  
						

							
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Setup Basic Settings - IP Management Page Example 
The following illustration is an example of  the Setup Basic Settings - IP Management 
page. 
  
Setup Basic Settings - IP Management Page Description 
The following tables provide a descriptio n of the fields within the Setup Basic 
Settings - IP Management page. 
Field Name  Description 
DHCP Server  Allows you to enable or disable the DHCP server  in the residential gateway  
						

							
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Field Name  Description 
Starting Local Address  Displays the starting address used by the built-in  DHCP server to distribute Private LAN IP 
addresses. In the example shown, addresses 
between 2 and 9 can be used for devices on your 
Private LAN that require fixed IP addresses such 
as printers or a device assigned as a DMZ host 
Note: The LAN IP address ending in 1 is reserved 
for the internal gateway server. The LAN IP 
address ending in 255 is also reserved and should 
not be used for CPE devices 
Number of CPEs  Enter the maximu m number of devices allowed to 
connect to the Private LAN. 
Note:  The Factory Default is 245. The maximum 
number of devices is 253. This is the combined 
total of addresses reserved for static IP addresses, 
for example, the sum of the IP addresses between 
2 and the value entered in the Starting Local 
Address field and the value entered in the 
Number of CPEs field. 
Note:  The sum of the value entered in the Starting 
Local Address field and the value entered in the 
Number of CPEs field must always be 255 or less. 
DHCP Client Lease Info  Displays th e MAC address, IP Address, Subnet 
Mask, Duration and Expiration date of all devices 
issued an IP address by the built-in DHCP server. 
This field also displays the current system time 
and date 
WINS Addresses  Allows you to manually enter Windows Internet  Name Server (WINS) server addresses 
Function Keys 
The following function keys appear on the Basic Settings - IP Management page. 
Key Description 
Apply  Saves the values you enter into the fields without closing the screen 
Force Available  Forces the release of an IP address for you to re-use 
  
						

							
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Reserving IP Addresses 
Use the Setup Basic Settings - Fixed CPE IP Assignment page to reserve IP 
addresses. This feature allows you to assign  a fixed IP address to any device in your 
network by setting static IP addresses  in your PC or other network device. 
These addresses will be removed from the p ool of the IP addresses to be used by 
your gateways DHCP server when issu ing IP addresses to devices that are 
connected to your local network. 
Reserving IP addresses is useful in making  sure that there are no IP address conflicts 
on the network, for example, two devices using the same IP address. Another 
example: when using DMZ Host, the IP a ddress for the DMZ Host should always 
have the same IP address. 
Note:  If you are not familiar with the Fixed  CPE IP Assignment procedures detailed 
in this section, contact your service provider before you attempt to change any of the 
residential gateway default Fixe d CPE IP Assignment settings. 
Click  Fixed CPE IP Assignment  in the Basic Settings section of the Setup page to 
access the Setup Basic Settings - Fixed CPE IP Assignment page. 
 
Setup Basic Settings - Fixed CPE IP Assignment Page 
The following illustration is an example of the Setup Basic Settings - Fixed CPE IP 
Assignment page. 
   
						

							
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Setup Basic Settings - Fixed CPE IP Assignment Page Description 
The following tables provide a descriptio n of the fields within the Setup Basic 
Settings - Fixed CPE IP Assignment page. 
Field Name  Description 
MAC Address  The MAC address of the PC or device (for example, a  printer) for which you want to reserve a specific IP 
address on the network 
Assign to IP  The IP address you assign to the PC or device for which you want to reserve a specific IP address on the network. 
Only MAC addresses within  the range of the gateways 
DHCP address pool can be reserved with this feature. 
Note:  The factory configuration of your gateway sets 
aside IP addresses 192.168.0.2 through 192.168.0.9 for 
static IP addresses. 
Function Keys  
Key Description 
Add Static IP  Adds the Static IP ad dress to the list of assigned IP 
addresses 
Remove Static IP  Removes the Static IP  address from the list of assigned IP 
addresses 
Restarting the Gateway Modem 
Use the Setup Basic Settings - Restart Cable Modem page to restart your cable 
modem. 
1   Click  Restart Modem  in the Basic Settings section of the Setup page to access the 
Basic Settings - Restart Cable Modem page. 
2   Click  Reboot Cable Modem  to restart the gateway modem. 
Note:  Restarting your gateway modem does not reset any of the settings. 
  
						

							
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Setup Basic Settings - Restart Cable Modem Page 
The following illustration is an example of the Restart Cable Modem page. 
  
Saving Your Configuration 
Use the Setup Basic Settings - Save RG Config uration to Local PC page to save your 
current cable modem RG configuration to the  hard drive on your PC or to a floppy 
disk. You will then be able to restore the RG configuration, if necessary. 
Note:  If you are not familiar with the proced ures detailed in this section, contact 
your service provider before you attempt  to change any of the residential gateway 
default settings. 
Click  Save Configuration to your PC  in the Basic Settings section of the Setup page 
to access the Setup Basic Settings - Save RG Configuration to Local PC page. 
 
Setup Basic Settings - Save RG  Configuration to Local PC Page 
The following illustration is an example of the Setup Basic Settings - Save RG 
Configuration to Local PC page. 
 
To  Save  your current setting to your computer , click the floppy disk icon in the 
lower portion of the screen. You will be prompted to provide a file name and 
location for the backup configuration file.  
						

							
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To  Restore  your setting, click  Browse and select the backup configuration file name 
that you saved on your PC. The path and  filename of the backup configuration 
appears in the File Name field. Then, click  Download to restore your configuration 
file. A  Download Success  message appears when the restore is complete. 
 
Enabling and Disabling Advanced Features 
Use the Setup Advanced Settings - Options  page to enable or disable advanced 
features on your network. When the wirele ss interface is disabled, the transmitter is 
turned off. 
Note:  If you are not familiar with the advanc ed settings detailed in this section, 
contact your service provider before you  attempt to change any of the residential 
gateway default advanced options settings. 
Click  Options  in the Advanced Settings section of the Setup page to access the Setup 
Advanced Settings - Options page. 
 
Setup Advanced Settings - Options Page 
The following illustration is an example of  the Setup Advanced Settings - Options 
page. 
  
Setup Advanced Settings - Op tions Page Description 
The following table provides a description  of the fields within the Setup Advanced 
Settings - Options page. 
Note:  If you make changes in the Setup Advanced Settings - Options page, click 
Apply to apply and save your ne w IP address filter settings. 
Field Name  Description 
WAN Blocking  Checking this box prev ents the residential gateway from 
being visible to the WAN. For example, pings to the 
WAN IP address are not returned  
						

							
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Field Name  Description 
Ipsec PassThrough  Checking this box allows applications that use IPSec (IP  Security) to pass through the firewall 
PPTP PassThrough  Checking this box allows applications that use Point to Point Tunneling Protocol (PPTP) to pass through the 
firewall 
Remote Config 
Management Checking this box enables Remote Configuration 
Management that allows the 
user or network operator 
to view and/or modify the gateway set-up parameters 
from a location on the WAN, as opposed to the LAN 
side of the gateway. Access to the set-up parameters is 
obtained by using the password to access the 
WebWizard. 
Enable this feature by checking the  Remote Config 
Management  box on the Setup Advanced Settings - 
Options page. To access your gateway from a remote 
location, you must also know the WAN IP address of 
the gateway. To find the WA N IP address, go to the 
Network Configuration page under Basic Settings. You 
will find the gateways WAN  IP address list on this 
page. 
Enter the WAN IP address of your gateway into the 
address field of any Web browser using the following 
format: http://xxx.xxx.xxx.xxx:8080 where 
xxx.xxx.xxx.xxx represents the WAN IP address of your 
gateway. 
Be sure to follow the syntax exactly, and then click Go 
or press Enter. Your gatewa y Web pages will appear on 
the remote computer. You will still need to enter your 
password to access the Setup pages of your gateway 
Note:  If you choose to enable (check) this feature, be 
sure to set up a user passw ord to prevent unauthorized 
access to your gateway settings. 
Multicast Enable  Checking this box allows multicasts to pass from the  WAN side through to the private network 
UPnP Enable  Checking this box enables Universal Plug and Play features 
 
Configuring IP Address Filters 
Use the Setup Advanced Settings - IP Filterin g page to configure IP address filters. 
These filters block a range of IP ad dresses from accessing the Internet.  
						

							
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Note:  If you are not familiar with the advanc ed settings detailed in this section, 
contact your service provider before you  attempt to change any of the residential 
gateway default advanced IP filtering settings. 
Click  IP Address Filtering  in the Advanced Settings section of the Setup page to 
access the Setup Advanced Settings - IP Filtering page. 
 
Setup Advanced Settings - IP Filtering Page 
The following illustration is an example of  the Setup Advanced Settings - IP Filtering 
page. 
  
Setup Advanced Settings - IP  Filtering Page Description 
Use this link to specify and enable a range  of IP addresses that cannot have access to 
the Internet. Click  Apply to apply and save your new IP address filter settings. 
 
Configuring MAC Address Filters 
Use the Setup Advanced Settings - MAC F iltering page to configure MAC address 
filters. These filters allow you to deny or block access to the Internet by the 
individual MAC addresses listed in the tabl e. You can also prevent individual PCs 
from sending outgoing TCP/UDP traffic  to the WAN using their MAC address. 
Note:  If you are not familiar with the advanc ed settings detailed in this section, 
contact your service provider before you  attempt to change any of the residential 
gateway default advanced MAC filtering settings.  
						

							
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Click MAC Address Filtering  in the Advanced Settings section of the Setup page to 
access the Setup Advanced Settings - MAC Filtering page. 
 
Setup Advanced Settings - MAC Filtering Page 
The following illustration is an example  of the Setup Advanced Settings - MAC 
Filtering page. 
  
Setup Advanced Settings - MAC  Filtering Page Description 
Use this link to enter the MAC address or  MAC addresses of devices whose Internet 
access you want to control. Click  Apply to apply and save your new MAC address 
filter settings. 
 
Setting Up MAC Address Filters 
The Block/Pass drop down menu allows you  to block or pass Internet access to the 
MAC addresses of the devices you list in  the MAC Address Filters table. The 
following table describes the function  of the Block/Pass drop down menu. 
Field Name  Description 
Block Listed (Default)  Select Block to deny Internet access to the MAC 
addresses of the devices you list in the table. All 
other MAC addresses will be allowed Internet 
access. 
Pass Select  Pass to allow Internet access only to the 
MAC addresses of the devices you list in the table. 
Any MAC addresses  not listed in the table will be 
denied Internet access.