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Page 106 / 165 Scroll up to view Page 101 - 105
Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
102
IM / P2P Blocking
IM, short for Instant Message, is required to use client program software that allows users to
communicate, in exchanging text message, with other IM users in real time over the Internet. A P2P
application, known as Peer-to-peer, is group of computer users who share file to specific groups of people
across the Internet. Both Instant Message and Peer-to-peer applications make communication faster and
easier but your network can become increasingly insecure at the same time. Billion’s IM and P2P
blocking helps users to restrict LAN PCs to access to 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 triggered. No action will be performed.
Always On:
Action is enabled.
TimeSlot1 ~ TimeSlot16:
This is the self-defined time period. You may specify the time period
to trigger the blocking, i.e. during working hours. For setup and detail, refer to
Time Schedule
section.
Yahoo/MSN Messenger:
Check the box to block either or both Yahoo or/and MSN Messenger.
To be
sure you enabled
the
Instant Message Blocking
first.
Peer to Peer Blocking:
The default is set to
Disabled.
Disabled:
Instant Message blocking is not triggered. No action will be performed.
Always On:
Action is enabled.
TimeSlot1 ~ TimeSlot16:
This is the self-defined time period. You may specify the time period
to trigger the blocking, i.e. during working hours. For setup and detail, refer to
Time Schedule
section.
BitTorrent / eDonkey:
Check the box to block either or both Bit Torrent or/and eDonkey. To be sure you
enabled
the
Peer to Peer Blocking
first.
Page 107 / 165
Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
103
Firewall Log
Firewall Log display log information of any unexpected action with your firewall settings.
Check the
Enable
box to activate the logs.
Log information can be seen in the
Status – Event Log
after enabling.
Page 108 / 165
Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
104
VPN - Virtual Private Networks
(BiPAC 7402NX only)
Virtual Private Networks is ways to establish secured communication tunnels to an organization’s 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)
There are two types of PPTP VPN supported;
Remote Access
and
LAN-to-LAN
(please refer below for
more information.). Click Configuration/VPN/PPTP.
Name:
A given name for the connection.
Active:
This function activates or deactivates the PPTP connection. Check Active checkbox if you want
the protocol of tunnel to be activated and vice versa.
Note:
When the Active checkbox is checked, the function of Edit and Delete will not be available.
Connection Type:
It informs your PPTP tunnel connection condition.
Type:
This refers to your router operates as a client or a server,
Dialout
or
Dialin
respectively.
PPTP Connection - Remote Access
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
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.
a)
When configuring your router as a server, enter the
Private IP Address Assigned to Dial in
User
address.
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.
Page 109 / 165
Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
105
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 determine the authentication type to use,
or else manually specify CHAP (Challenge Handshake Authentication Protocol) or PAP (Password
Authentication Protocol) if you know which type the server is using (when acting as a client), or else the
authentication type you want clients connecting to you to use (when acting as a server). When using PAP,
the password is sent unencrypted, whilst CHAP encrypts the password before sending, and also allows
for challenges at different periods to ensure that an intruder has not replaced the client.
Data Encryption:
Data sent over the VPN connection can be encrypted by an MPPE algorithm. Default
is
Auto,
so that this setting is negotiated when establishing a connection, or else you can manually
Enable
or
Disable
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 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 which all packets will route through
the VPN tunnel to the Internet; therefore, active the function may degrade the Internet performance.
Click
Edit/Delete
button to save your changes.
Page 110 / 165
Billion BiPAC 7402NX(L) 802.11n 3G/ADSL2+ (VPN) Firewall Router
Chapter 4: Configuration
106
Example: Configuring a Remote Access PPTP VPN Dial-out Connection
A company’s office establishes a PPTP VPN connection with a file server located at a separate location.
The router is installed in the office, connected to a couple of PCs and Servers.
Dial-out

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