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Press

‘

Create Ipv6

’

button you will see follow options shows on the page. To specify rules, choose

S

ervice Name

or

Port

number range to set up. IP Address 0.0.0.0 means allow all IP address.

Fig.2-28 Gateway\Advanced\Forwarding setting

This page allows you to specify up to rules. For example, to specify that outsiders should have access to

an FTP server you have running at 192.168.0.5, create a rule with that address and Start Port =20 and End

Port =21 (FTP port ranges) and Protocol = TCP (FTP runs over TCP and the other transport protocol,

UDP), and click Apply. This will cause inbound packets that match to be forwarded to that PC rather than

blocked. As these connections are not tracked, no entry is made for them in the Connection Table. The

same IP address can be entered multiple times with different ports.

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6. Port Triggers

Some Internet activities, such as interactive gaming, require that a PC on the WAN side of your gateway

be able to originate connections during the game with your game playing PC on the LAN side. You could

use the Advanced-Forwarding web page to construct a forwarding rule during the game, and then remove

it afterwards (to restore full protection to your LAN PC) to facilitate this. Port triggering is an elegant

mechanism that does this work for you, each time you play the game.

Fig.2-29 Gateway\Advanced\Port Triggers

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Press ‘

Create

’ button to specify rules.

Fig.2-30 Gateway\Advanced\Port Triggers

Port Triggering works as follows. Imagine you want to play a particular game with PCs somewhere on

the Internet. You make one time effort to set up a Port Trigger for that game, by entering into

Trigger

Start Port

and

Tigger End Port

the range of destination ports your game will be sending to, and

entering into

Target Start Port

the range of destination ports the other player (on the WAN side) will be

sending to (ports your PC’s game receives on). Application programs like games publish this information

in user manuals. Later, each time you play the game, the gateway automatically creates the forwarding

rule necessary. This rule is valid until 10 minutes after it sees game activity stop. After 10 minutes, the

rule becomes inactive until the next matched outgoing traffic arrives.

e.g., suppose you specify Trigger Range from 6660 to 6670 and Target Range from 113 to 113. An

outbound packet arrives at the gateway with your game-playing PC source IP address 192.168.0.10,

destination port 666 over TCP/IP. This destination port is within the Trigger destined for port 113 to your

game-playing PC at 192.168.0.10.

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7. DMZ Host

Use this page to designate one PC on your LAN that should be left accessible to all PCs from the WAN

side, for all ports. e.g., if you put an HTTP server on this machine, anyone will be able to access that

HTTP server by using your gateway IP address as the destination. A setting of “0” indicates NO DMZ

PC. “Host” is another Internet term for a PC connected to the Internet.

Fig.2-31 Gateway\Advanced\DMZ Host

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8. RIP (Routing Information Protocol) Setup

This feature enables the gateway to be used in small business situations where more than one LAN (local

area network) is installed. The RIP protocol provides the gateway a means to “advertise”

available IP

routes to these LANs to your cable operator, so packets can be routed properly in this situation.

Your cable operator will advise you during installation if any setting changes are required here.

Fig.2-32 Gateway\Advanced\RIP Setup