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Parameters

Description

Src/dst

If you want to monitor the source IP of the packets, please select src IP. Otherwise,

please select dst IP.

IP Address

Specify the IP Address that you want to limit the transmit/receive rate.

IP Mask

If you want to limit a subnet, you can specify the subnet mask here.

Protocol

Specify the protocol you want to monitor, it can be TCP / UDP / or IP only.

Start / End Port

Specify the port ranges that you want to monitor. To classify all TCP or UDP packets

within same IP address / mask (regardless of port number) as same rate policy, set 0

to both Start Port and End Port.

Rate / Unit / isByteCount

Specify the rate, unit, and the type of the limitation.

Click <

Apply>

at the bottom of the screen to save the above configurations. You can now configure other advance

sections or start using the router (with the advance settings in place)

2.4.3 Guaranteed / Spare Class QoS

User can first specify maximum WAN total bandwidth and then set bandwidth allocation rules according to two different

classes: Guaranteed or Spared. Rules in Guaranteed class are guaranteed to have specified percentage of WAN Total

bandwidth. At any period of time, if the aggregated bandwidth used by flows in guaranteed class doesn’t exceed total

bandwidth, the spared bandwidth is then available for allocating to the flows in Spared class, according to the percentage

configured.

For example, 192.168.1.1 is guaranteed to have 50Mbps bandwidth if it needs and 192.168.1.2 has 25Mbps guaranteed

on demand. If for a period of time, the aggregated bandwidth used by both hosts is 40Mbps , so only 40% WAN

bandwidth is consumed by Guaranteed class flows, then all other hosts in 192.168.1.0 can compete to use the spared

60Mbps WAN bandwidth. If there exists another LAN on gateway, say, 192.168.2.0/24, then they can only use the rested

bandwidth consumed by guaranteed and spared class.

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Parameters

Description

Queue ID

The Queue (Group) ID groups all the connections with the same Queue ID into one

rule and these connections share the same bandwidth in this rule.

Src/Dst

If you want to monitor the source IP of the packets, please select src IP. Otherwise,

please select dst IP.

IP Address

Specify the IP Address that you want to limit the transmit/receive rate.

IP Mask

If you want to limit a subnet, you can specify the subnet mask here.

Protocol

Specify the protocol you want to monitor, it can be TCP / UDP / or IP only.

Start / End Port

Specify the port ranges that you want to monitor. To classify all TCP or UDP packets

within same IP address / mask (regardless of port number) as same rate policy, set 0

to both Start Port and End Port.

Bandwidth allocation policy

Guaranteed or Spare.

Percentage

Input the percentage of total bandwidth that this queue have.

DSCP Marking

Differentiated Services Code Point is a model in which traffic is treated by intermediate

systems with relative priorities based on the type of services. If you want to mark this

Queue to specified DSCP type, enable this option and filled a value in the DSCP value

field.

Click <

Apply>

at the bottom of the screen to save the above configurations. You can now configure other advance

sections or start using the router (with the advance settings in place)

2.5 NAT

Network Address Translation (NAT) allows multiple users at your local site to access the Internet through a single Public

IP Address or multiple Public IP Addresses. NAT provides Firewall protection from hacker attacks and has the flexibility to

allow you to map Private IP Addresses to Public IP Addresses for key services such as Websites and FTP.

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Parameter

Description

2.5.1 Virtual Server

You can have different services (e.g. email, FTP, Web etc.) going to different

service servers/clients in your LAN. The Virtual Server allows you to re-direct a

particular service port number (from the Internet/WAN Port) to a particular LAN

IP address and its service port number.

2.5.2 Special Applications

Some applications require multiple connections, such as Internet games, video

conferencing, Internet telephony and others. In this section you can configure

the router to support these types of applications.

2.5.3 ALG Setting

You can select special applications that need “Application Layer Gateway” to

support here.

2.5.4 UPnP Setting

It allows to Enable or Disable UPnP feature here. After you enable the UPnP

feature, all client systems that support UPnP, like Windows XP, can discover this

router automatically and access the Internet through this router without any

configuration. The NAT Traversal function provided by UPnP can let applications

that support UPnP smoothly connect to Internet sites without any incompatibility

problem due to the NAPT port translation.

2.5.5 Static Routing

You can disable NAT function and setup the routing rules manually.

Click on one of the three NAT selections and proceed to the manual's relevant sub-section.

2.5.1 Virtual Server

Use the Virtual Server function when you want different servers/clients in your LAN to handle different service/Internet

application type (e.g. Email, FTP, Web server etc.) from the Internet. Computers use numbers called port numbers to

recognize a particular service/Internet application type. The Virtual Server allows you to re-direct a particular service port

number (from the Internet/WAN Port) to a particular LAN private IP address and its service port number. (See Glossary

for an explanation on Port number)

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Parameters

Description

WAN Port Range

Enter the service (service/Internet application) port number from the Internet that will be

re-directed to the above Private IP address host in your LAN

Note

: Virtual Server function will have priority over the DMZ function if there is a conflict

between the Virtual Server and the DMZ settings.

Server IP Address

This is the LAN client/host IP address that the Public Port number packet will be sent to.

Note:

You need to give your LAN PC clients a fixed/static IP address for Virtual Server

to work properly.

Server Port Range

This is the port number (of the above Private IP host) that the below Public Port number

will be changed to when the packet enters your LAN (to the LAN Server/Client IP)

Protocol

Select the port number protocol type (TCP, UDP).

Click <

Apply>

at the bottom of the screen to save the above configurations. You can now configure other advance

sections or start using the router (with the advance settings in place)

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Example: Virtual Server

The diagram below demonstrates one of the ways you can use the Virtual Server function. Use the Virtual Server when

you want the web server located in your private LAN to be accessible to Internet users. The configuration below means

that any request coming form the Internet to access your web server will be translated to your LAN’s web server

(192.168.2.2).

Note:

For the virtual server to work properly Internet/remote users must know your global IP address. (For websites you

will need to have a fixed/static global/public IP address)

2.5.2 Special Applications

Some applications require multiple connections, such as Internet games, video conferencing, Internet telephony and

others. In this section you can configure the router to support multiple connections for these types of applications.

Parameters

Description

Name

The description of this setting.

Incoming Type

Select the Inbound port protocol type: “TCP”, “UDP” or both

Incoming Port Range

Enter the In-coming (Inbound) port or port range for this type of application (e.g.

2300-2400, 47624)

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