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IM / P2P Blocking

IM, short for Instant Message, is client software that allows users to communicate & exchange text messages with

other IM users in real time over the Internet. A P2P application, known as Peer- to-peer, is a group of users who share

files with each other over the Internet. Both Instant Message and Peer-to-peer applications make communication faster

and easier but your network may become increasingly insecure. Billion’s IM and P2P blocking helps users by

restricting LAN PCs from accessing the commonly used IM (Yahoo and MSN), and P2P (BitTorrent and eDonkey)

applications over the Internet.

Instant Message Blocking

: The default is set to Disabled.

Disabled:

Instant Message blocking is not enabled. No action will be taken.

Always On

: Instant Message blocking is enabled. IM messages will be blocked.

TimeSlot1 ~ TimeSlot16

: This is the self defined time period. You may specify the time period to activate

blocking, i.e. during working hours. For setup and detail, refer to the Time Schedule section.

Yahoo/MSN Messenger

: Check the checkbox to block either Yahoo or/and MSN Messenger or both.

Be sure to enable

the

Instant Message Blocking

first.

Peer to Peer Blocking

: The default is set to Disabled.

Disabled:

Peer to Peer blocking is not enabled. No action will be taken.

Always On

: Peer to Peer blocking is enabled. P2P will be blocked.

TimeSlot1 ~ TimeSlot16

:

This is the self defined time period. You may specify the time period to activate

blocking, i.e. during working hours. For setup and detail, refer to Time Schedule section.

BitTorrent / eDonkey

: Check the checkbox to block either Bit Torrent or eDonkey or both. Be sure to enable

the

Peer to

Peer Blocking

first.

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Firewall Log

The Firewall Log contains information of any unexpected actions that occur to your firewall.

Check the Enable checkbox to activate event logging.

Log information can be seen in the Status – Event Log after the feature is enabled.

VPN - Virtual Private Networks

Virtual Private Networks is a way to establish a secured communication tunnel with an organization network via the

Internet. Your router supports three main types of VPN (Virtual Private Network):

PPTP, IPSec and L2TP

.

PPTP (Point-to-Point Tunneling Protocol)

PPTP Connection - LAN to LAN

There are two types of PPTP VPN: Remote Access and LAN-to-LAN (please refer below for more information). Click

Configuration > VPN > PPTP. Choose LAN to LAN from Connection Type drop down menu.

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Name:

A given name for the connection (e.g. “connection to office”).

Connection Type:

Remote Access or LAN to LAN.

Type:

Check Dial Out if you want your router to operate as a client (connecting to a remote VPN server, e.g. your office

server), check Dial In if it operates as a VPN server.

When configuring your router as a Client, enter the remote Server IP Address (or Domain Name) you wish

to connect to.

When configuring your router as a server, enter the Private IP Address assigned to the Dial in User.

IP Address:

Enter the IP address.

Peer Network IP:

Enter your peer’s network IP address.

Netmask:

Enter the subnet mask of the peer network based on the Peer Network IP setting.

Username:

If you are a Dial-Out user (client), enter the username provided by your Host. If you are a Dial-In user

(server), enter your own username.

Password:

If you are a Dial-Out user (client), enter the password provided by your Host. If you are a Dial-In user

(server), enter your own password.

Authentication Type:

Default is Auto if you want the router to automatically determine the authentication type to use. If

you know which authentication type the server is using (when acting as a client), you may manually specify the

Authentication type whether CHAP (Challenge Handshake Authentication Protocol) or PAP (Password Authentication

Protocol). When acting as a server, you can set the authentication type you want the clients connecting to you to use.

When using PAP, the password is sent unencrypted, while CHAP encrypts the password before sending it.

Data Encryption:

Data sent over the VPN connection can be encrypted by an MPPE algorithm. Default is set to Auto,

so that this setting is negotiated when establishing a connection, you can also manually Enable or Disable the

encryption.

Key Length:

The data can be encrypted by MPPE algorithm with 40 bits or 128 bits. Default is Auto; it is negotiated

when establishing a connection. 128 bit keys provide a stronger encryption than 40 bit keys.

Mode:

You may select Stateful or Stateless mode. The key will be changed every 256 packets when you select Stateful

mode. If you select Stateless mode, the key will be changed in each packet.

Active as default route:

Commonly used by the Dial-out connection where all packets will route through the VPN

tunnel to the Internet. Therefore activating this function may degrade the Internet performance.

Click Edit/Delete button to save your changes.

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°

Both office LAN networks must be in different subnets with LAN-

LAN application

Example: Configuring a Remote Access PPTP VPN Dial-out Connection

The branch office establishes a PPTP VPN tunnel with head office to connect two private networks over the Internet. The

routers are installed in the head office and branch offices accordingly.

Attention

Configuring the PPTP VPN in the Head Office

The IP address 192.168.1.201 will be assigned to the router located in the branch office. Please make sure this IP is not

used in the head office LAN.

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Function

Description

Name

Head Office

Given name of PPTP connection

Connection type

LAN to LAN

Select LAN to LAN from the Connection Type drop-down

menu

Type

Dial in

Select Dial in from the Type drop-down menu

IP Address

192.168.1.200

IP address assigned to branch office network

Peer Network IP

192.168.0.0

Branch office network

Netmask

255.255.255.0

Username

Username

A given username & password to authenticate the branch

office network.

Password

123456

Auth. Type

Chap(Auto)

Keep as the default value in most cases, PPTP server & client

will determine the value automatically. Refer to the manual for

details if you want to change the settings.

Data Encryption

Auto

Key Length

Auto

Mode

Stateful

Configuring the PPTP VPN in the Head Office

The IP address 69.1.121.30 is the Public IP address of the router located in head office. If you registered the DDNS

(please refer to the DDNS section of this manual), you can also use the domain name instead of the IP address to reach

the router.