Billion BiGuard 50G User manual

BiGuard 50G
802.11g Dual WAN Security
Gateway
User’s Manual
Version Release 1.03 (FW:1.xx)

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BiGuard 50G User’s Manual
(Updated September, 2007)
Copyright Information
© 2007 Billion Electric Corporation, Ltd.
The contents of this publication may not be reproduced in whole or in part,
transcribed, stored, translated, or transmitted in any form or any means, without
the prior written consent of Billion Electric Corporation.
Published by Billion Electric Corporation. All rights reserved.
Disclaimer
Billion does not assume any liability arising out of the application of use of any
products or software described herein. Neither does it convey any license under its
patent rights nor the patent rights of others. Billion reserves the right to make
changes in any products described herein without notice. This publication is subject
to change without notice.
Trademarks
Mac OS is a registered trademark of Apple Computer, Inc.
Windows 98, Windows NT, Windows 2000, Windows Me and Windows XP are
registered trademarks of Microsoft Corporation.

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Safety Warnings
Your BiGuard 50G is built for reliability and long service life. For your
safety, be sure to read and follow the following safety warnings.
• Read this installation guide thoroughly before attempting to set up your BiGuard
50G.
• Your BiGuard 50G is a complex electronic device. DO NOT open or attempt to
repair it yourself. Opening or removing the covers can expose you to high
voltage and other risks. In the case of malfunction, turn off the power
immediately and have it repaired at a qualified service center. Contact your
vendor for details.
• Connect the power cord to the correct supply voltage.
• Carefully place connecting cables to avoid people from stepping or tripping on
them. DO NOT allow anything to rest on the power cord and DO NOT place the
power cord in an area where it can be stepped on.
• DO NOT use BiGuard 50G in environments with high humidity or high
temperatures.
• DO NOT use the same power source for BiGuard 50G as other equipment.
• DO NOT use your BiGuard 50G and any accessories outdoors.
• If you wall mount your BiGuard 50G, make sure that no electrical, water or gas
pipes will be damaged during installation.
• DO NOT install or use your BiGuard 50G during a thunderstorm.
• DO NOT expose your BiGuard 50G to dampness, dust, or corrosive liquids.
• DO NOT use your BiGuard 50G near water.
• Be sure to connect the cables to the correct ports.
• DO NOT obstruct the ventilation slots on your BiGuard 50G or expose it to direct
sunlight or other heat sources. Excessive temperatures may damage your
device.
• DO NOT store anything on top of your BiGuard 50G.
• Only connect suitable accessories to your BiGuard 50G.
• Keep packaging out of the reach of children.
• If disposing of the device, please follow your local regulations for the safe
disposal of electronic products to protect the environment.

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Table of Contents
Chapter 1: Introduction
1.1 Overview
1.2 Product Highlights
1.2.1 Increased Bandwidth, Scalability and Resilience
1.2.2 Virtual Private Network Support
1.2.3 Advanced Firewall Security
1.2.4 Intelligent Bandwidth Management
1.3 Package Contents
1.3.1 Front Panel
1.3.2 Rear Panel
1.3.3 Cabling
Chapter 2: Router Applications
2.1 Overview
2.2 Bandwidth Management with QoS
2.2.1 QoS Technology
2.2.2 QoS Policies for Different Applications
2.2.3 Guaranteed / Maximum Bandwidth
2.2.4 Policy Based Traffic Shaping
2.2.5 Priority Bandwidth Utilization
2.2.6 Management by IP or MAC address
2.2.7 DiffServ (DSCP Marking)
2.2.7 DSCP (Matching)
2.3 Outbound Traffic
2.3.1 Outbound Fail Over
2.3.2 Outbound Load Balancing
2.4 Inbound Traffic
2.4.1 Inbound Fail Over
2.4.2 Inbound Load Balancing
2.5 DNS Inbound
2.5.1 DNS Inbound Fail Over
2.5.2 DNS Inbound Load Balancing
2.6 Virtual Private Networking
2.6.1 General VPN Setup

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2.6.2 VPN Planning - Fail Over
2.6.3 Concentrator
Chapter 3: Getting Started
3.1 Overview
3.2 Before You Begin
3.3 Connecting Your Router
3.4 Configuring PCs for TCP/IP Networking
3.4.1 Overview
3.4.2 Windows XP
3.4.2.1 Configuring
3.4.2.2 Verifying Settings
3.4.3 Windows 2000
3.4.3.1 Configuring
3.4.3.2 Verifying Settings
3.4.4 Windows 98 / ME
3.4.4.1 Installing Components
3.4.4.2 Configuring
3.4.4.3 Verifying Settings
3.5 Factory Default Settings
3.5.1 Username and Password
3.5.2 LAN and WAN Port Addresses
3.6 Information From Your ISP
3.6.1 Protocols
3.6.2 Configuration Information
3.6.2.1 Windows
3.7 Web Configuration Interface
Chapter 4: Router Configuration
4.1 Overview
4.2 Status
4.2.1 ARP Table
4.2.2 Wireless Association

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4.2.3 Routing Table
4.2.4 Session Table
4.2.5 DHCP Table
4.2.6 IPSec Status
4.2.7 PPTP Status
4.2.8 Traffic Statistics
4.2.9 CPU Statistics
4.2.10 System Log
4.3 Quick Start
4.3.1 DHCP
4.3.2 Static IP
4.3.3 PPPoE
4.3.4 PPTP
4.3.5 Big Pond
4.4 Configuration
4.4.1 LAN
4.4.1.1 Ethernet
4.4.1.2 Wireless Security
4.4.1.3 WEP
4.4.1.4 DHCP Server
4.4.1.5 LAN Address Mapping
4.4.2 WAN
4.4.2.1 ISP Settings
4.4.2.1.1 DHCP
4.4.2.1.2 Static IP
4.4.2.1.3 PPPoE
4.4.2.1.4 PPTP
4.4.2.1.5 Big Pond
4.4.2.2 Bandwidth Settings
4.4.2.3 WAN IP Alias
4.4.3 Dual WAN
4.4.3.1 General Settings
4.4.3.2 Outbound Load Balance
4.4.3.3 Inbound Load Balance
4.4.3.4 Protocol Binding
4.4.4 System
4.4.4.1 Time Zone
4.4.4.2 Remote Access

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4.4.4.3 Firmware Upgrade
4.4.4.4 Backup / Restore
4.4.4.5 Restart
4.4.4.6 Password
4.4.5 Firewall
4.4.5.1 Packet Filter
4.4.5.2 URL Filter
4.4.5.3 Ethernet MAC Filter
4.4.5.4 Wireless MAC Filter
4.4.5.5 Block WAN Request
4.4.5.6 Intrusion Detection
4.4.6 VPN
4.4.6.1 IPSec
4.4.6.1.1 IPSec Wizard
4.4.6.1.2 IPSec Policy
4.4.6.2 PPTP
4.4.7 QoS
4.4.8 Virtual Server
4.4.8.1 DMZ
4.4.8.2 Port Forwarding Table
4.4.9 Advanced
4.4.9.1 Static Route
4.4.9.2 Dynamic DNS
4.4.9.3 Device Management
5 Log & Email Alert
5.1 Log Configuration
5.2 System Log Server
5.3 E-Mail Alert
6 Language
6.1 English
6.2 Simplified Chinese
6.3 Traditional Chinese
7 Save Configuration To Flash
8 Logout
Chapter 5: Troubleshooting
5.1 Basic Functionality

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5.1.1 Router Won’t Turn On
5.1.2 LEDs Never Turn Off
5.1.3 LAN or Internet Port Not On
5.1.4 Forgot My Password
5.2 LAN Interface
5.2.1 Can’t Access Router from the LAN
5.2.2 Can’t Ping Any PC on the LAN
5.2.3 Can’t Access Web Configuration Interface
5.2.3.1 Pop-up Windows
5.2.3.2 Javascripts
5.2.3.3 Java Permissions
5.3 WAN Interface
5.3.1 Can’t Get WAN IP Address from the ISP
5.4 ISP Connection
5.5 Problems with Date and Time
5.6 Restoring Factory Defaults
Appendix A: Product Specifications
Appendix B: Customer Support
Appendix C: FCC Interference Statement

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Appendix D: Network, Routing, and Firewall Basics
D.1 Network Basics
D.1.1 IP Addresses
D.1.1.1 Netmask
D.1.1.2 Subnet Addressing
D.1.1.3 Private IP Addresses
D.1.2 Network Address Translation (NAT)
D.1.3 Dynamic Host Configuration Protocol (DHCP)
D.2 Router Basics
D.2.1 Why use a Router?
D.2.2 What is a Router?
D.2.3 Routing Information Protocol (RIP)
D.3 Firewall Basics
D.3.1 What is a Firewall?
D.3.2.1 Stateful Packet Inspection
D.3.2.2 Denial of Service (DoS) Attack
D.3.2 Why Use a Firewall?

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Appendix E: Virtual Private Networking
E.1 What is a VPN?
E.1.1 VPN Applications
E.2 What is IPSec?
E.2.1 IPSec Security Components
E.2.1.1 Authentication Header (AH)
E.2.1.2 Encapsulating Security Payload (ESP)
E.2.1.3 Security Associations (SA)

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E.2.2 IPSec Mod
E.2.3 Tunnel Mode AH
E.2.4 Tunnel Mode ESP
E.2.5 Internet Key Exchange (IKE)
Appendix F: IPSec Logs and Events
F.1 IPSec Log Event Categories
F.2 IPSec Log Event Table
Appendix G: Bandwidth Management with QoS
G.1 Overview
G.2 What is Quality of Service?
G.3 How Does QoS Work?
G.4 Who Needs QoS?
G.4.1 Home Users
G.4.2 Office Users
Appendix H: Router Setup Examples
H.1 Outbound Fail Over
H.2 Outbound Load Balancing
H.3 Inbound Fail Over
H.4 DNS Inbound Fail Over
H.5 DNS Inbound Load Balancing
H.6 Dynamic DNS Inbound Load Balancing
H.7 VPN Configuration
H.7.1 LAN to LAN
H.7.2 Host to LAN
H.8 IPSec Fail Over (Gateway to Gateway)
H.9 VPN Concentrator
H.10 Protocol Binding
H.11 Intrusion Detection
H.12 PPTP Remote Access by Windows XP
H.13 PPTP Remote Access by BiGuard

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Chapter 1: Introduction
1.1 Overview
Congratulations on purchasing BiGuard 50G Router from Billion. Combining a router
with an Ethernet network switch, BiGuard 50G is a state-of-the-art device that
provides everything you need to get your network connected to the Internet over
your Cable or DSL connection quickly and easily. The Quick Start Wizard and DHCP
Server will get first-time users up and running with minimal fuss and configuration,
while sophisticated Quality of Service (QoS) and Load Balancing features grant
advanced users total control over their network and Internet connection.
This manual illustrates the many features and functions of BiGuard 50G, and even
takes you through the various ways you can apply this versatile device to your home
or office. Take the time now to familiarize yourself with BiGuard 50G.
1.2 Product Highlights
1.2.1 Increased Bandwidth, Scalability and Resilience
With integrated Dual WAN ports, BiGuard 50G combines two broadband lines such
as DSL or Cable into one Internet connection, providing optimal bandwidth sharing
for multiple PCs on your network, or allowing maximum reliability with network
redundancy. Load Balancing enables BiGuard 50G to efficiently balance network
traffic across two connections, ideal for small-to-medium businesses that require
increased bandwidth, network scalability, and resilience for mission-critical network
and Internet applications. Auto failover can also be configured to ensure smooth,
continuous service should one connection fail, providing maximum business uptime
and productivity, plus uninterrupted service for you and your customers.
1.2.2 Virtual Private Network Support
BiGuard 50G supports comprehensive IPSec & PPTP VPN protocols for businesses to
establish private encrypted tunnels over the Internet to ensure data transmission
security among multiple sites, such as a branch office or dial-up connection. IPSec
VPN is up to 30 simultaneous IPSec VPN connections are possible on BiGuard 50G,
with performance of up to 30Mbps. PPTP VPN is up to 4 simultaneous PPTP VPN

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connections are possible on BiGuard 50G, with performance of up to 10Mbps.
1.2.3 Advanced Firewall Security
Aside from intelligent broadband sharing, BiGuard 50G offers integrated firewall
protection with advanced features to secure your network from outside attacks.
Stateful Packet Inspection (SPI) determines if a data packet is permitted to enter
the private LAN. Denial of Service (DoS) prevents hackers from interrupting
network services via malicious attacks. In addition, BiGuard 50G firewall can be
configured to alert you via email should your network come under fire, offering both
tight network security and peace of mind.
1.2.4 Intelligent Bandwidth Management
BiGuard 50G utilizes Quality of Service (QoS) to give you full control over the
priority of both incoming and outgoing data, ensuring that critical data such as
customer information moves through your network, even while under a heavy load.
Transmission speeds can be throttled to make sure users are not saturating
bandwidth required for mission-critical data transfers. Priority types of upload data
can also be changed, allowing BiGuard 50G to automatically sort out actual speeds
for unmatched convenience.
1.3 Package Contents
BiGuard 50G iBusiness Security Gateway SMB
Getting Started CD-ROM
Quick Start Guide
AC-DC Power Adapter (12VDC, 1A)
1.3.1 Front Panel

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LED Function
Power A solid light indicates a steady connection to a power
source.
Status A blinking light indicates the device is writing to flash
memory.
LAN
1 – 4
Lit when connected to an Ethernet device.
10/100M : Lit green when connected at 100Mbps.
Not lit when connected at 10Mbps.
Link/ACT: Lit when device is connected.
Blinking when data is transmitting/receiving.
WAN1 Lit when connected to an Ethernet device.
10/100M : Lit green when connected at 100Mbps.
Not lit when connected at 10Mbps.
Link/ACT: Lit when device is connected.
Blinking when data is transmitting/receiving.
WAN2 Lit when connected to an Ethernet device.
10/100M : Lit green when connected at 100Mbps.
Not lit when connected at 10Mbps.
Link/ACT: Lit when device is connected.
Blinking when data is transmitting/receiving.

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1.3.2 Rear Panel
Port Function
1 Wireless
Antenna One detachable 2.4GHz 5dbi SMA antenna
2 WAN2
WAN2 10/100M Ethernet port (with auto
crossover support); connect xDSL/Cable
modem here.
3 WAN1
WAN1 10/100M Ethernet port (with auto
crossover support); connect xDSL/Cable
modem here.
4
LAN
1 — 4
Connect a UTP Ethernet cable (Cat-5 or
Cat-5e) to one of the eight LAN ports when
connecting a PC to the network.
5 RESET
To reset the device and restore factory
default settings, after the device is fully
booted, press and hold RESET until the
Status LED begins to blink.
6 DC12V Connect DC Power Adapter here. (12VDC)

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1.3.4 Cabling
Most Ethernet networks currently use unshielded twisted pair (UTP) cabling. The
UTP cable contains eight conductors, arranged in four twisted pairs, and terminated
with an RJ45 type connector.
One of the most common causes of networking problems is bad cabling. Make sure
that all connected devices are turned on. On the front panel of BiGuard 50G, verify
that the LAN link and WAN line LEDs are lit. If they are not, check to see that you are
using the proper cabling.

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Chapter 2: Router Applications
2.1 Overview
Your BiGuard 50G router is a versatile device that can be configured to not only
protect your network from malicious attackers, but also ensure optimal usage of
available bandwidth with Quality of Service (QoS) and both Inbound and Outbound
Load Balancing. Alternatively, BiGuard 50G can also be set to redirect incoming and
outgoing network traffic with the Fail Over capability, ensuring minimal downtime
and increased reliability.
The following chapter describes how BiGuard 50G can work for you.
2.2 Bandwidth Management with QoS
Quality of Service (QoS) gives you full control over which types of outgoing data
traffic should be given priority by the router. By doing so, the router can ensure that
latency-sensitive applications like voice, bandwidth-consuming data like gaming
packets, or even mission critical files efficiently move through the router even under
a heavy load. You can throttle the speed at which different types of outgoing data
pass through the router. In addition, you can simply change the priority of different
types of upload data and let the router sort out the actual speeds.
2.2.1 QoS Technology
QoS generally involves the prioritization of network traffic. QoS is comprised of
three major components: Classifier, Met e r, a n d S c h e d u l e r. E a c h o f t h e s e
components has a distinct role in ensuring that incoming and outgoing data is
managed according to user specifications.
The Classifier analyses incoming packets and marks each one according to
configured parameters. The Meter communicates the drop priority to the Scheduler
and measures the temporal priorities of the output stream against configured
parameters. Finally, the Scheduler schedules each packet for transmission based on
information from both the Classifier and the Meter.

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2.2.2 QoS Policies for Different Applications
By setting different QoS policies according to the applications you are running, you
can use BiGuard 50G to optimize the bandwidth that is being used on your network.
As illustrated in the diagram above, applications such as Voiceover IP (VoIP) require
low network latencies to function properly. If bandwidth is being used by other
Restricted PC
Normal PCs
VoIP

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applications such as an FTP server, users using VoIP will experience network lag
and/or service interruptions during use. To avoid this scenario, this network has
assigned VoIP with a guaranteed bandwidth and higher priority to ensure smooth
communications. The FTP server, on the other hand, has been given a maximum
bandwidth cap to make sure that regular service to both VoIP and normal Internet
applications is uninterrupted.
2.2.3 Guaranteed / Maximum Bandwidth
Setting a Guaranteed Bandwidth ensures that a particular service receives a
minimum percentage of bandwidth. For example, you can configure BiGuard 50G to
reserve 10% of the available bandwidth for a particular computer on the network to
transfer files.
Alternatively you can set a Maximum Bandwidth to restrict a particular application
to a fixed percentage of the total throughput. Setting a Maximum Bandwidth of 20%
for a file sharing program will ensure that no more than 20% of the available
bandwidth will be used for file sharing.
2.2.4 Policy Based Traffic Shaping
Policy Based Traffic Shaping allows you to apply specific traffic policies across a
range of IP addresses or ports. This is particularly useful for assigning different
policies for different PCs on the network. Policy based traffic shaping lets you better

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manage your bandwidth, providing reliable Internet and network service to your
organization.
2.2.5 Priority Bandwidth Utilization
Assigning priority to a certain service allows BiGuard 50G to give either a higher or
lower priority to traffic from this particular service. Assigning a higher priority to an
application ensures that it is processed ahead of applications with a lower priority
and vice versa.