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Chapter 5: Configuring the Router

The Security Tab - Firewall

The Security Tab - Firewall

When you click the Security tab, you will see the

Firewall

screen. You can use this screen to enable a variety of

web filters, which will enhance the firewall protecting your network.

Web Filters

Filter Proxy

. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will

disable access to any WAN proxy servers. To enable proxy filtering, click the checkbox.

Filter Java Applets

. Java is a programming language for websites. If you deny Java Applets, you run the risk of

not having access to Internet sites created using this programming language. To enable Java Applet filtering,

click the checkbox.

Filter Cookies

. A cookie is data stored on your computer and used by Internet sites when you interact with

them. To enable cookie filtering, click the checkbox.

Filter ActiveX

. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not

having access to Internet sites created using this programming language. To enable ActiveX filtering, click the

checkbox.

When you have finished making changes on this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes.

Figure 5-11: Security Tab - Firewall

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Chapter 5: Configuring the Router

The Security Tab - VPN Passthrough

The Security Tab - VPN Passthrough

The

VPN Passthrough

screen allows you to allow VPN tunnels using IPSec, PPPoE, or PPTP protocols to pass

through the Router.

VPN Passthrough

IPSec Passthrough

. IPSec (Internet Protocol Security) is a suite of protocols used to implement secure

exchange of packets at the IP layer. To allow IPSec Passthrough, click the

Enabled

button. To disable IPSec

Passthrough, click the

Disabled

button.

PPPoE Passthrough

. PPPoE (Point-to-Point over Ethernet) Passthrough allows your PC(s) to use the PPPoE

client software provided by your ISP. Some ISPs may request that you use this feature on the Router. To allow

PPPoE Passthrough, click the

Enabled

button. To disable PPPoE Passthrough, click the

Disabled

button.

PPTP Pass Through

. PPTP (Point-to-Point Tunneling Protocol) Passthrough allows the Point-to-Point (PPP) to be

tunneled through an IP network. To allow PPTP Passthrough, click the

Enabled

button. To disable PPTP

Passthrough, click the

Disabled

button.

When you have finished making changes on this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes.

Figure 5-12: Security Tab - VPN

Passthrough

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Chapter 5: Configuring the Router

The Access Restrictions Tab - Filter

The Access Restrictions Tab - Filter

Filters can block specific internal users from accessing the Internet, anonymous Internet requests, and/or

multicasting.

Filter IP Address Range

You can create up to five different IP Address filters. To set up a filter, enter the IP address you wish to filter in

the field provided. Users who have filtered IP addresses will not be able to access the Internet at all.

Filter Port Range

You can create up to five different Port Range filters. To filter users by network port number, select the protocol

you want to filter,

TCP

,

UDP

, or

Both

, from the

Protocol

drop-down menu. Enter the port numbers you want to

filter in the

Start

and

End

fields. Users connected to the Router will no longer be able to access any port number

listed there.

Filter MAC Address

This feature blocks computers with specific MAC addresses from going out to the Internet. For information on

obtaining a MAC address, go to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

To set the MAC filter, click the

Edit MAC Filter Setting

button.

Edit MAC Filter Setting

. Click the

Edit MAC Filter Setting

button. Select the range of MAC address entries in

the drop-down box. In each

mac

field, enter the MAC address you want to filter.

Click the

Apply

button before

closing the window. To cancel changes, click the

Undo

button.

Figure 5-13: Access Restrictions Tab -

Filter

Figure 5-14: Filtered MAC Address

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Chapter 5: Configuring the Router

The Access Restrictions Tab - Filter

Block WAN Requests

Use these features to enhance your network’s security and filter multicasting.

Block Anonymous Internet Requests

. This keeps your network from being “pinged” or detected and

reinforces your network security by hiding your network ports, so it is more difficult for intruders to work their

way into your network. Select

Enabled

to block anonymous Internet requests, or

Disabled

to allow anonymous

Internet requests.

Filter Multicast

. Multicasting allows for multiple transmissions to specific recipients at the same time. If

multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate

computers. Select

Enabled

to filter multicasting, or

Disabled

to disable this feature.

When you have finished making changes to this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes.

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Chapter 5: Configuring the Router

The Access Restrictions Tab - Device Access Control

The Access Restrictions Tab - Device Access Control

Use this screen to control local and remote access to the Router’s management ports via different services.

Access Control

Enable Access Control

. If you want to control access to the Router’s management ports via the services listed

below, click the checkbox. For each service, make sure the appropriate checkbox is checked if you want to

allow local or remote access. Make sure the appropriate checkbox is not checked if you want to block local or

remote access.

If the Access Control feature is disabled, then access is permitted within the local network but blocked for the

Internet.

Service Name

. You can control access for two services, Web and Secure Shell (SSH).

WAN

. If you want to block WAN (Internet) access for a service, make sure the appropriate checkbox is

unchecked. If you want to allow access, then make sure the appropriate checkbox is checked.

LAN

. If you want to block local access for a service, make sure the appropriate checkbox is unchecked. If you

want to allow access, then make sure the appropriate checkbox is checked.

IP Access List

. Specify the IP addresses that are allowed to remotely access the Router. If you want to delete an

IP address, select it and then click the

Delete

checkbox.

New IP

. To add an IP address, enter it in the field provided, and then click the

Add

checkbox.

When you have finished making changes to this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes.

Figure 5-15: Access Restrictions Tab -

Device Access Control

NOTE:

When a checkbox

for a service is checked,

access is enabled. When a

checkbox is unchecked,

access is denied.

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