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Figure 21. Example of port Triggers Page
To activate a port trigger
1
Enter the trigger and target ports range for the Internet traffic to forward to.
2
Select the forwarding protocol(s).
3
Enter a name for your port triggering rule.
4
Check the
Enable
box to the bottom of the entry to store settings.
5
Click the
Apply
button to activate the port trigger rules.
Table 15. Port Triggers Menu Option
Option
Description
Trigger Range
(Start / End
Port)
Enter the trigger range (starting and ending ports) of the application
for which you want to enable port triggering. The application will
send data from these ports.
Target Range
(Start / End
Port)
Enter the target range (starting and ending ports) to open for the
same application. The application will receive data on these ports.
Protocol
Select the protocol for this rule.
Description
A brief description of the rule you have created.
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Enabled
Select ON to enable the rule. For security reasons you should leave
the rule disabled if you are not using it.
DMZ Host
The DMZ (De-militarized Zone) Host page allows you to configure a network device (e.g.
a PC) to be exposed or visible directly to the Internet. This may be used if an application
doesn’t work with port triggers. If you have an application that won’t run properly behind
the NAT firewall, you can configure it for unrestricted two-way Internet access by defining
it as a virtual DMZ host. Adding a client to the DMZ may expose your local network to
various security risks because the client is not protected, so use this option as a last
resort.
To access the
DMZ Host
page:
1
Click
Advanced
in the menu bar.
2
Then click the
DMZ Host
submenu.
Figure 22 shows an example of the menu.
Figure 22. Example of DMZ Host Page
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To configure DMZ settings:
1
Enter the last byte of the LAN IP address of the PC or other device on your network
that you want to configure as a DMZ host.
2
Click
Apply
.
Note:
If a specific PC is set as a DMZ Host, remember to set this back to “0” when
finished with the needed application, since this PC will be effectively exposed to the
public Internet.
Note:
You may need to assign your DMZ host a static IP address on your LAN to
insure that it will always be at that address.
RIP Setup
The RIP Setup page allows you to configure RIP (Router Information Protocol)
parameters. RIP automatically identifies and uses the best known and quickest route to
any given destination address to help reduce network congestion and delays.
RIP is a protocol that requires negotiation from both sides of the network (e.g. both the
Cable Modem/Router and your service provider’s CMTS (Cable Modem Termination
System)). Your service provider will normally set this up based on their knowledge of
their CMTS settings.
To access the
RIP Setup
page:
1
Click
Advanced
in the menu bar.
2
Then click the
RIP Setup
submenu.
Figure 23 shows an example of the menu and Table 14 describes the items you can
select.
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Figure 23. Example of RIP Setup Page
Note:
RIP messages will only be sent when the Cable Modem/Router is configured for Static IP
Addressing (see the
Basic – Setup
page).
It is unlikely that your cable Internet service supports this mode. If they do, and you want
to enable RIP, you will need to ask for the CMTS’s key name and number. You may need
additional information.
To enable the Cable Modem/Router to perform RIP, do the following (this example uses
BRCMV2 as the RIP Authentication Key and 1 as the Key ID):
•
To turn on RIP, check the Enable box.
•
To turn on RIP MD5 Authentication, and check the
Enable
box.
•
To specify a RIP MD5 Authentication Key String, type
BRCMV2
for this example.
key name = a string value to match CMTS key name value
•
To specify a RIP MD5 Auth Key ID, type
1
.
key number = a number to match the CMTS key number value
•
To change the RIP announcement interval, enter a number in seconds.
reporting interval by default = 30 seconds
•
To specify a RIP unicast destination IP address, enter the IP address and subnet
mask.
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Table 16. RIP Setup Menu Option
Option
Description
RIP Enable
Check this box to enable RIP.
RIP Authentication
Check this box to enable RIP authentication for
routing protocols.
RIP Authentication Key
Enter the set of keys for your interface.
RIP Authentication Key ID
Enter the ID to identify the key used to create the
authentication data.
RIP Reporting Interval
Enter the interval at which to update routing table.
RIP Destination IP Address
Enter the destination IP address for RIP.
RIP Destination IP Subnet Mask
Enter the subnet mask for the destination IP
address.
75
19216811.live