Linksys RV042 Router Manual PDF (Setup & Configuration Guide)

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Chapter 6: Set Up and Configure the Router

Setup Tab - UPnP Page

10/100 4-Port VPN Router

Port Triggering

Some Internet applications or games use alternate ports to communicate between server and LAN host. When

you want to use those applications, enter the triggering (outgoing) port and alternate incoming port in this table.

The Router will forward the incoming packets to the LAN host.

Enter the application name, range of port numbers, and the incoming port range.

You can click the

Add to List

button to add Port Triggering or

Delete selected application

Click the

Save Settings

button to save the settings, click the

Cancel Changes

button to undo your changes, click

the Show Tables to see the details.

Setup Tab - UPnP Page

UPnP forwarding can be used to set up public services on your network. Windows XP can modify those entries via

UPnP when UPnP function is enabled by selecting Yes. See Figure 6-15.

Select the Service from the pull-down menu.

If the Service you need is not listed in menu, please click the

Service Management

button to add the new

Service Name, and enter the Protocol and Port Range. Click the

Add to List

button. Then, click the

Save

Setting

button. Click the

Exit

button.

Enter the Name or IP Address of the server that you want the Internet users to access. Then enable the entry.

Click the

Add to List

button, and configure as many entries as you would like. You also can

Delete selected

application

Setup Tab - One-to-One NAT

One-to-One NAT creates a relationship which maps valid external addresses to internal addresses hidden by NAT.

Machines with an internal address may be accessed at the corresponding external valid IP address. See Figure

6-16.

Creating this relationship between internal and external addresses is done by defining internal and external

address ranges of equal length. Once that relationship is defined, the machine with the first internal address is

accessible at the first IP address in the external address range, and the second machine at the second external IP

address, and so on.

Figure 6-15: UPnP

Figure 6-16: One-to-One NAT

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Page 37 / 103

Chapter 6: Set Up and Configure the Router

Setup Tab - MAC Clone

10/100 4-Port VPN Router

Consider a LAN for which the ISP has assigned the IP addresses range from 209.19.28.16 to 209.19.28.31, with

209.19.28.16 used as the Router’s WAN IP (NAT Public) Address. The address range of 192.168.168.1 to

192.168.168.255 is used for the machines on the LAN. Typically, only machines that have been designated as

Public LAN Servers will be accessible from the Internet. However, with One-to-One NAT, the machines with the

internal IP addresses of 192.168.168.2 to 192.168.168.15 may be accessed at the corresponding external IP

address.

Note: The Router’s WAN IP (NAT Public) Address may not be included in a range.

One-to-One NAT: Enable: If you check the box, you will enable One-to-One NAT.

Private Range Begin: Enter the beginning IP address of the private address range being mapped in the Private

Range Begin field. This will be the IP address of the first machine being made accessible from the Internet.

Public Range Begin: Enter the beginning IP address of the public address range being mapped in the Public

Range Begin field. This address will be assigned by the ISP. The Router’s WAN IP (NAT Public) Address cannot be

included in the range.

Range Length: Enter the number of IP addresses for the range. The range length may not exceed the number of

valid IP address. Up to 64 ranges may be added. To map a single address, use a Range Length of 1.

Note: One-to-One NAT will change the way the firewall functions work. Access to machines on the LAN from the

Internet will be allowed unless Network Access Rules are set. You can click

Add to List

button or

Delete

selected range

Click the

Save Settings

button to save the settings or click the

Cancel Changes

button to undo your changes.

Setup Tab - MAC Clone

Some ISPs require that you register a MAC address. This feature “clones” your network adapter's MAC address

onto the Router, and prevents you from having to call your ISP to change the registered MAC address to the

Router's MAC address. The Router's MAC address is a 12-digit code assigned to a unique piece of hardware for

identification. See Figure 6-17.

Input the MAC Address in the User Defined WAN1 or WAN2 MAC Address field or select

MAC Address from this

Click

Save Settings

to save the MAC Cloning settings or click the

Cancel Changes

button to undo your changes.

Figure 6-17: MAC Clone

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Page 38 / 103

Chapter 6: Set Up and Configure the Router

Setup Tab - DDNS

10/100 4-Port VPN Router

Setup Tab - DDNS

DDNS (Dynamic DNS) service allows you to assign a fixed domain name to a dynamic WAN IP address. This

allows you to host your own Web, FTP or other type of TCP/IP server in your LAN. See Figure 6-18.

Before configuring DDNS, you need to visit www.dyndns.org and register a domain name. (The DDNS service is

provided by DynDNS.org).

DDNS Service: The DDNS feature is disabled by default. To enable this feature, just select DynDNS.org from the

pull-down menu, and enter the User name, Password, and Host Name of the account you set up with DynDNS.org.

Your IP Address: The Router’s current Internet IP Address is displayed here. Because it is dynamic, this will

change.

Status: The status of the DDNS function and Internet status is displayed.

Click the

Save Settings

button to save the DDNS settings or click the

Cancel Changes

button to undo your

changes.

Setup Tab - Advanced Routing

Dynamic Routing

The Router's dynamic routing feature can be used to automatically adjust to physical changes in the network's

layout. The Router uses the dynamic RIP protocol. It determines the route that the network packets take based on

the fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing

information to other routers on the network. See Figure 6-19.

Working Mode: Select Gateway mode if your Router is hosting your network’s connection to the Internet. Select

Router mode if the Router exists on a network with other routers, including a separate network gateway that

handles the Internet connection. In Router Mode, any computer connected to the Router will not be able to

connect to the Internet unless you have another router function as the gateway.

RIP (Routing Information Protocol): The Router, using the RIP protocol, calculates the most efficient route for the

network’s data packets to travel between the source and the destination, based upon the shortest paths.

Receive RIP versions: Choose the RX protocol you want for receiving data from the network. (None, RIPv1, RIPv2,

Both RIPv1 and v2).

Transmit RIP versions: Choose the TX protocol you want for transmitting data on the network. (None, RIPv1,

RIPv2-Broadcast, RIPv2-Multicast)

Figure 6-19: Advanced Routing

Figure 6-18: DDNS

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Page 39 / 103

Chapter 6: Set Up and Configure the Router

Setup Tab - Advanced Routing

10/100 4-Port VPN Router

Static Routing

You will need to configure Static Routing if there are multiple routers installed on your network. The static routing

function determines the path that data follows over your network before and after it passes through the Router.

You can use static routing to allow different IP domain users to access the Internet through this device. This is an

advanced feature. Please proceed with caution.

This Router is also capable of dynamic routing (see the Dynamic Routing tab). In many cases, it is better to use

dynamic routing because the function will allow the Router to automatically adjust to physical changes in the

network's layout. In order to use static routing, the Router's DHCP settings must be disabled.

To set up static routing, you should add routing entries in the Router's table that tell the device where to send all

incoming packets. All of your network routers should direct the default route entry to the Linksys Router.

Enter the following data to create a static route entry:

Destination IP: Enter the network address of the remote LAN segment. For a standard Class C IP domain, the

network address is the first three fields of the Destination LAN IP, while the last field should be zero.

Subnet Mask: Enter the Subnet Mask used on the destination LAN IP domain. For Class C IP domains, the

Subnet Mask is 255.255.255.0.

Default Gateway: If this Router is used to connect your network to the Internet, then your gateway IP is the

Router's IP Address. If you have another router handling your network's Internet connection, enter the IP

Address of that router instead.

Hop Count (max. 15): This value gives the number of nodes that a data packet passes through before reaching

its destination. A node is any device on the network, such as switches, PCs, etc.

Interface: (LAN, WAN1, WAN2/DMZ) Interface tells you whether your network is on the LAN or the WAN, or the

Internet. If you’re connecting to a sub-network, select

LAN

. If you’re connecting to another network through

the Internet, select

WAN

Click

Add to list

to add a route entry or click

Delete Selected IP

to delete the static route entry.

Click the

Save Settings

button to save the Routing settings, click the

Cancel Changes

button to undo your

changes or click the

Show Routing Table

button to view the current routing table.

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Page 40 / 103

Chapter 6: Set Up and Configure the Router

DHCP Tab - Setup

10/100 4-Port VPN Router

DHCP Tab - Setup

Setup

The Router can be used as a DHCP (Dynamic Host Configuration Protocol) server on your network. A DHCP server

assigns available IP addresses to each computer on your network automatically. If you choose to enable the DHCP

server option, you must configure all of the PCs on your LAN to connect to a DHCP server. See Figure 6-20.

If the Router's DHCP server function is disabled, you have to carefully configure the IP address, Mask, and DNS

settings of every computer on your network. Be careful not to assign the same IP Address to different computers.

Make any changes to the available fields as described below.

Enable DHCP Server: Check the box to enable the DHCP Server. If you already have a DHCP server on your

network, leave the box blank.

Dynamic IP

Client Lease Time: This is the lease time assigned if the computer (DHCP client) requests one. The range is 5 ~

43,200 Minutes.

Range Start/End: Enter a starting IP address and ending IP address to make a range to assign dynamic IPs. The

default range is 100~149.

WINS

Windows Internet Naming Service (WINS) is a service that resolves NetBIOS names to IP addresses. The WINS is

assigned if the computer (DHCP client) requests one. If you do not know the WINS, leave it as 0.

Click the

Save Settings

button to save the DHCP settings or click the

Cancel Changes

button to undo the

changes.

DHCP Tab - Status

A Status page is available to review DHCP Server Status. The DHCP Server Status reports the IP of the DHCP

Server, the number of Dynamic IP Used, DHCP Available and Total. Client Table shows the current DHCP Client

information. You will see the related information (Client Host Name, IP Address, MAC Address, and Leased Time)

of all network clients using the DHCP server. Click the

Trash Can

icon to delete the line, and the IP Address of the

Client Host got will be released, or click the

Refresh

button to refresh the Client Table. See Figure 6-21.

Figure 6-20: DHCP Setup

Figure 6-21: DHCP Status

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