Zyxel VSG-1200 user manual

VSG-1200

Vantage Service Gateway

User’s Guide

Version 1.05

November 2004

VSG-1200 User’s Guide

Copyright

Copyright © 2004 by ZyXEL Communications Corporation.

The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation.

Published by ZyXEL Communications Corporation. All rights reserved.

Disclaimer

ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any products described herein without notice. This publication is subject to change without notice.

Trademarks

ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc. Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.

Copyright

2

VSG-1200 User’s Guide

Federal Communications

Commission (FCC) Interference

Statement

This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:

This device may not cause harmful interference.

This device must accept any interference received, including interference that may cause undesired operations.

This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.

If this equipment does cause harmful interference to radio/television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

Notice 1

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Certifications

Go to www.zyxel.com

1Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.

2Select the certification you wish to view from this page

Federal Communications Commission (FCC) Interference Statement

3

VSG-1200 User’s Guide

ZyXEL Limited Warranty

ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the defective products or components without charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any replacement will consist of a new or re-manufactured functionally equivalent product of equal value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.

Note

Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind of character to the purchaser.

To obtain the services of this warranty, contact ZyXEL's Service Center for your Return Material Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit be insured when shipped. Any returned products without proof of purchase or those with an out-dated warranty will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address, Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary from country to country.

Safety Warnings

1To reduce the risk of fire, use only No. 26 AWG or larger telephone wire.

2Do not use this product near water, for example, in a wet basement or near a swimming pool.

3Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightening.

ZyXEL Limited Warranty

4

VSG-1200 User’s Guide

Customer Support

Please have the following information ready when you contact customer support.

Product model and serial number.

Warranty Information.

Date that you received your device.

Brief description of the problem and the steps you took to solve it.

METHOD

SUPPORT E-MAIL

TELEPHONEA

WEB SITE

REGULAR MAIL

LOCATION

SALES E-MAIL

FAX

FTP SITE

 

 

 

 

 

 

 

support@zyxel.com.tw

+886-3-578-3942

www.zyxel.com

ZyXEL Communications Corp.

WORLDWIDE

 

 

www.europe.zyxel.com

6 Innovation Road II

 

 

 

Science Park

sales@zyxel.com.tw

+886-3-578-2439

ftp.zyxel.com

 

Hsinchu 300

 

 

 

ftp.europe.zyxel.com

 

 

 

Taiwan

 

 

 

 

 

 

support@zyxel.com

+1-800-255-4101

www.us.zyxel.com

ZyXEL Communications Inc.

NORTH

 

+1-714-632-0882

 

1130 N. Miller St.

 

 

Anaheim

AMERICA

 

 

 

sales@zyxel.com

+1-714-632-0858

ftp.us.zyxel.com

CA 92806-2001

 

 

 

 

 

U.S.A.

 

 

 

 

 

 

support@zyxel.de

+49-2405-6909-0

www.zyxel.de

ZyXEL Deutschland GmbH.

GERMANY

 

 

 

Adenauerstr. 20/A2 D-52146

sales@zyxel.de

+49-2405-6909-99

 

 

Wuerselen

 

 

 

 

 

 

 

 

Germany

 

 

 

 

 

 

info@zyxel.fr

+33 (0)4 72 52 97 97

www.zyxel.fr

ZyXEL France

 

 

 

 

1 rue des Vergers

 

 

+33 (0)4 72 52 19 20

 

FRANCE

 

 

Bat. 1 / C

 

 

 

 

 

 

 

69760 Limonest

 

 

 

 

France

 

support@zyxel.es

+34 902 195 420

www.zyxel.es

ZyXEL Communications

SPAIN

 

 

 

Alejandro Villegas 33

sales@zyxel.es

+34 913 005 345

 

 

1º,28043Madrid

 

 

 

 

 

 

 

 

Spain

 

 

 

 

 

 

support@zyxel.dk

+45 39 55 07 00

www.zyxel.dk

ZyXELCommunicationsA/S

DENMARK

 

 

 

Columbusvej 5

sales@zyxel.dk

+45 39 55 07 07

 

 

2860 Soeborg

 

 

 

 

 

 

 

 

Denmark

 

 

 

 

 

 

support@zyxel.no

+47 22 80 61 80

www.zyxel.no

ZyXELCommunicationsA/S

NORWAY

 

 

 

Nils Hansens vei 13

sales@zyxel.no

+47 22 80 61 81

 

 

0667 Oslo

 

 

 

 

 

 

 

 

Norway

 

 

 

 

 

 

support@zyxel.se

+46 31 744 7700

www.zyxel.se

ZyXEL Communications A/S

SWEDEN

 

 

 

Sjöporten 4, 41764 Göteborg

sales@zyxel.se

+46 31 744 7701

 

 

 

Sweden

 

 

 

 

 

 

 

 

 

 

support@zyxel.fi

+358-9-4780-8411

www.zyxel.fi

ZyXEL Communications Oy

FINLAND

 

 

 

Malminkaari 10

sales@zyxel.fi

+358-9-4780 8448

 

 

00700 Helsinki

 

 

 

 

 

 

 

 

Finland

 

 

 

 

 

a. “+” is the (prefix) number you enter to make an international telephone call.

Customer Support

5

VSG-1200 User’s Guide

Customer Support

6

VSG-1200 User’s Guide

Table of Contents

Copyright ..................................................................................................................

2

Federal Communications Commission (FCC) Interference Statement ...............

3

ZyXEL Limited Warranty..........................................................................................

4

Customer Support....................................................................................................

5

List of Figures ........................................................................................................

15

List of Tables ..........................................................................................................

21

Preface ....................................................................................................................

25

Chapter 1

 

Getting to Know Your VSG ....................................................................................

27

1.1 Introducing the VSG ...........................................................................................

27

1.2 Features .............................................................................................................

27

1.3 Applications ........................................................................................................

30

1.3.1 Internet Access for LAN Networks ............................................................

30

1.3.2 Internet Access in Public Areas ................................................................

31

1.3.3 Hotel Application with PMS .......................................................................

31

Chapter 2

 

Hardware Installation and Connection.................................................................

33

2.1 Installation Options .............................................................................................

33

2.1.1 Desktop Installation ..................................................................................

33

2.1.2 Rack Mount Installation ............................................................................

33

2.2 Hardware Connections .......................................................................................

34

2.2.1 Front Panel ...............................................................................................

34

2.2.1.1 Four LAN 10/100M Ports .................................................................

35

2.2.1.2 The WAN Port .................................................................................

35

2.2.1.3 The Console Port ............................................................................

35

2.2.1.4 The PMS Port ..................................................................................

35

2.2.1.5 The Reset Button ............................................................................

36

2.2.2 Front Panel LEDs .....................................................................................

36

2.2.3 Rear Panel ................................................................................................

36

2.2.4 Turning on the VSG ..................................................................................

37

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7

VSG-1200 User’s Guide

 

2.2.5 Methods of Restoring Factory Defaults

....................................................37

Chapter 3

 

 

The Web Configurator............................................................................................

39

3.1

Introducing the Web Configurator ......................................................................

39

3.2

Accessing the Web Configurator ........................................................................

39

3.3

The Navigation Panels .......................................................................................

41

 

3.3.1 The Configuration Menu Panel .................................................................

41

 

3.3.2 Screen - Specific Link Panel .......................................................................

41

3.4

Screen Overview ................................................................................................

42

3.5

General System Setting .....................................................................................

42

3.6

System Login Accounts ......................................................................................

45

3.7

Changing System Login Passwords ..................................................................

46

3.8

Restarting the VSG ............................................................................................

48

3.9

Logging Out of the Web Configurator ................................................................

49

Chapter 4

 

 

LAN, WAN and Server Setup.................................................................................

51

4.1

Factory Ethernet Defaults ..................................................................................

51

4.2 LANs and WANs ................................................................................................

51

4.3

IP Address Assignment ......................................................................................

51

4.4

DHCP Configuration ...........................................................................................

51

 

4.4.1 IP Address and Subnet Mask ...................................................................

52

 

4.4.2 Private IP Addresses ................................................................................

52

4.5

DNS Server Address ..........................................................................................

53

4.6

LAN Configuration ..............................................................................................

53

4.7

WAN Configuration .............................................................................................

54

 

4.7.1 Configuring WAN MAC Address ...............................................................

54

 

4.7.2 WAN IP Address Settings ........................................................................

54

 

4.7.3 PPPoE ......................................................................................................

55

 

4.7.4 PPTP ........................................................................................................

57

4.8

Server Configuration ..........................................................................................

59

Chapter 5

 

 

NAT Pool

.................................................................................................................

63

5.1

NAT Introduction ................................................................................................

63

.........................................................................................

5.1.1 NAT Definitions

63

........................................................................................

5.1.2 What NAT Does

64

.......................................................................................

5.1.3 How NAT Works

64

5.2 .....................................................................................................VPN and NAT

64

5.3 ...................................................................................................

NAT Examples

65

............................................................................

5.3.1 Example 1: One - to - One

65

..........................................................................

5.3.2 Example 2: Many - to - One

66

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VSG-1200 User’s Guide

 

5.3.3 Example 3: One-to-One and Many-to-One ...............................................

66

5.4

Configuring NAT Pool .........................................................................................

67

Chapter 6

 

 

Authentication ........................................................................................................

69

6.1

Overview ............................................................................................................

69

 

6.1.1 User Agreement ........................................................................................

69

 

6.1.2 CAS (Central Authentication Service) .......................................................

69

 

6.1.3 Built-in Authentication ...............................................................................

70

 

6.1.4 RADIUS ....................................................................................................

70

 

6.1.4.1 RADIUS Accounting ........................................................................

70

 

6.1.4.2 Vendor Specific Attribute .................................................................

70

6.2

Authentication Settings .....................................................................................

71

 

6.2.1 Scenario Options ......................................................................................

74

Chapter 7

 

 

Billing Profiles and PMS Configuration ...............................................................

77

7.1

About Billing Profiles ..........................................................................................

77

 

7.1.1 Creating a Billing Profile ...........................................................................

77

 

7.1.2 Editing a Billing Profile ..............................................................................

78

7.2

PMS (Property Management System) ...............................................................

80

 

7.2.1 Port-Location Mapping Charge Modes .....................................................

80

 

7.2.2 PMS Configuration ....................................................................................

81

7.3

Types of Subscriber Accounts ............................................................................

82

Chapter 8

 

 

Static Subscriber Accounts...................................................................................

83

8.1

About Static Subscriber Accounts ......................................................................

83

8.2

Global Static Account Settings ...........................................................................

83

8.3

Creating a Static Account ...................................................................................

84

 

8.3.1 Generating Static Accounts Automatically ................................................

85

 

8.3.2 Creating Static Subscriber Accounts Manually .........................................

86

8.4

Static Account List Backup and Restore ............................................................

87

 

8.4.1 Backing Up a Static Account List ..............................................................

87

 

8.4.2 Restoring a Static Account List .................................................................

89

8.5

Editing Subscriber Accounts ..............................................................................

90

 

8.5.1 Static Account Information Print Preview ..................................................

91

8.6

Viewing the Static Account List ..........................................................................

91

Chapter 9

 

 

Dynamic Subscriber Accounts .............................................................................

93

9.1

About Dynamic Subscriber Accounts .................................................................

93

9.2

Dynamic Account General Settings ...................................................................

93

Table of Contents

9

VSG-1200 User’s Guide

9.3 Creating Dynamic Accounts ...............................................................................

95

9.3.1 Dynamic Account Generation Using the Web Configurator ......................

95

9.3.2 Dynamic Account Generation Using a Statement Printer .........................

96

9.4 Viewing the Dynamic Account List .....................................................................

97

9.4.1 Backing Up the Dynamic Account List ......................................................

98

Chapter 10

 

Port-Location Mapping ........................................................................................

101

10.1 About Port-Location Mapping .........................................................................

101

10.2 Configuring Port-Location Mapping ...............................................................

101

Chapter 11

 

Credit Card Billing and Customization .............................................................

105

11.1 Overview ........................................................................................................

105

11.1.1 How Credit Card Billing Works ..............................................................

105

11.1.2 Configuration Steps ...............................................................................

105

11.2 Setting up Credit Card Billing Service ............................................................

106

11.3 Customizing Subscriber Credit Card Information Screen ...............................

107

11.3.1 Subscriber Standard Login Page Message ...........................................

107

11.3.2 Service Selection Page .........................................................................

108

11.3.3 Successful Screen ................................................................................

111

11.3.4 Fail Page ...............................................................................................

113

Chapter 12

 

Subscriber Login Screen.....................................................................................

115

12.1 About the Subscriber Login Screen ...............................................................

115

12.2 Customizing Subscriber Login Screen ...........................................................

115

12.2.1 Standard Subscriber Login Screen .......................................................

116

12.2.2 Redirect Subscriber Login Screen ........................................................

118

12.2.3 Advanced Subscriber Login Screen .....................................................

119

12.2.4 Frame Subscriber Login Screen ...........................................................

120

12.2.5 Service Selection Messages .................................................................

121

Chapter 13

 

Subscriber Information Window.........................................................................

123

13.1 About the Information Window .......................................................................

123

13.1.1 Customizing the Information Window ...................................................

123

Chapter 14

 

Account Printout ..................................................................................................

127

14.1 About the Account Printout ............................................................................

127

14.1.1 Customizing the Account Printout .........................................................

127

10

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VSG-1200 User’s Guide

Chapter 15

 

 

Bandwidth Management ......................................................................................

133

15.1

Bandwidth Management Overview ................................................................

133

15.1.1 Bandwidth Allocation ............................................................................

133

15.1.2 Configuring Equal Share Bandwidth Management ...............................

134

15.1.3 Configuring Class of Service Bandwidth Management ........................

135

Chapter 16

 

 

Portal Page, Advertisement Link and Walled Garden.......................................

137

16.1

Introduction ....................................................................................................

137

16.2

Portal Page ....................................................................................................

137

16.3

Advertisement Links .......................................................................................

138

16.4

Walled Garden ...............................................................................................

139

Chapter 17

 

 

Passthrough .........................................................................................................

141

17.1

About the Passthrough ...................................................................................

141

17.2

Configuring Passthrough ................................................................................

141

17.2.1 Subscriber Computer Passthrough .......................................................

141

17.2.2 Destination URL and IP Address Passthrough .....................................

143

Chapter 18

 

 

LAN Devices .........................................................................................................

145

18.1

LAN Devices and NAT Overview ...................................................................

145

18.1.1 Port Mapping ........................................................................................

145

18.2

Configuring LAN Device Port Mapping ..........................................................

145

18.2.1 LAN Device Management Example ......................................................

147

18.2.2 Specifying an Inside Server Example ...................................................

148

Chapter 19

 

 

Syslog and Session Trace...................................................................................

151

19.1

Syslog ............................................................................................................

151

19.1.1 Syslog Server Setup .............................................................................

151

19.1.2 Configure Log Settings .........................................................................

152

19.2

Session Trace ................................................................................................

155

19.2.1 Configuring Session Trace ...................................................................

155

 

19.2.1.1 Session Trace Filename Convention ..........................................

156

Chapter 20

 

 

SNMP.....................................................................................................................

 

159

20.1 SNMP Overview .............................................................................................

159

20.1.1 Network Management System (NMS) .................................................

160

20.2

Configuring SNMP .........................................................................................

160

Table of Contents

11

VSG-1200 User’s Guide

Chapter 21

 

 

System Status.......................................................................................................

163

21.1

About System Status ......................................................................................

163

21.2

View System Information ...............................................................................

163

21.3

Current User List ............................................................................................

166

21.4

DHCP Client ...................................................................................................

167

21.5

Session List ....................................................................................................

167

21.6

LAN Device Status .........................................................................................

168

21.6.1 Accessing the LAN Device ...................................................................

169

21.7

Billing Logs .....................................................................................................

169

21.7.1 Billing Logs Backup ..............................................................................

170

21.8

PMS Transaction ............................................................................................

172

Chapter 22

 

 

Secure Socket Layer............................................................................................

173

22.1

About SSL ......................................................................................................

173

22.1.1 Certificate ..............................................................................................

173

22.1.2 Certificate Authorities ............................................................................

173

22.2

Downloading SSL Certificate to the VSG .......................................................

173

22.3

Activating SSL Security ..................................................................................

174

22.4

Installing SSL Certificate on a Computer .......................................................

177

Chapter 23

 

 

The SMT ................................................................................................................

 

183

23.1

Introduction to the SMT ..................................................................................

183

23.1.1 Establishing a Console Port Connection ..............................................

183

23.2

SMT Login Screen .........................................................................................

184

23.3 The SMT Main Menu Summary .....................................................................

185

23.4

Navigating the SMT Interface .........................................................................

186

23.4.1 The Navigation Keys .............................................................................

186

23.5

General System Setup ...................................................................................

186

23.6

Changing the System Password ....................................................................

188

23.7

Restarting the VSG ........................................................................................

188

23.8

Reset the VSG to Factory Defaults ................................................................

189

Chapter 24

 

 

LAN and WAN Setup Using the SMT ..................................................................

191

24.1 LAN and WAN Overview ................................................................................

191

24.2

WAN Configuration .........................................................................................

191

24.2.1 Using a Static/Dynamic WAN IP Address .............................................

191

24.2.2 PPPoE Support .....................................................................................

192

24.2.3 PPTP Support .......................................................................................

194

24.3

LAN Configuration ..........................................................................................

195

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Table of Contents

 

VSG-1200 User’s Guide

Chapter 25

 

 

Configuration and Firmware Maintenance ........................................................

199

25.1

Filename Convention .....................................................................................

199

25.2

Firmware Upgrade .........................................................................................

199

25.2.1 Firmware Upgrade Using the Web Configurator ...................................

199

 

25.2.1.1 Manual Firmware Upgrade ..........................................................

200

 

25.2.1.2 Manual Firmware Upgrade via a TFTP Server ...........................

200

 

25.2.1.3 Scheduled Firmware Upgrade ....................................................

201

25.2.2 Firmware Upgrade Using SMT .............................................................

203

25.3

Configuration File Maintenance .....................................................................

204

25.3.1 Backup Configuration Using HTTP .......................................................

204

25.3.2 Backup Configuration Using TFTP .......................................................

206

25.3.3 Restore Configuration Using HTTP ......................................................

207

25.3.4 Restore Configuration Using TFTP ......................................................

208

Chapter 26

 

 

Troubleshooting ...................................................................................................

211

26.1

Using the LEDs to Diagnose Problems ..........................................................

211

26.1.1 The Power LED ....................................................................................

211

26.1.2 The LAN Port LEDs ..............................................................................

211

26.1.3 The WAN Port LEDs .............................................................................

212

26.2

The Console Port ...........................................................................................

212

26.3

Web Configurator ...........................................................................................

213

26.4

Internet Access ..............................................................................................

213

26.5

The Statement Printer ....................................................................................

214

Appendix A

 

Product Specifications ........................................................................................

215

Appendix B

 

IP Address Assignment Conflicts.......................................................................

217

Appendix C

 

Subscriber Login..................................................................................................

221

Appendix D

 

Vendor Specific Attributes ...........................................................................

223

Appendix E

 

Report Printing Using the SP-200......................................................................

227

Appendix F

 

Cable Types and Cable Pin Assignments ..........................................................

233

Appendix G

 

Table of Contents

13

VSG-1200 User’s Guide

Setting up Your Computer’s IP Address............................................................

237

Appendix H

 

IP Subnetting ........................................................................................................

249

Index......................................................................................................................

257

14

Table of Contents

VSG-1200 User’s Guide

List of Figures

Figure 1

Application: Internet Access for LAN Networks ..............................................

31

Figure 2

Application: Internet Access in Public Areas ..................................................

31

Figure 3

Application: Hotel ............................................................................................

32

Figure 4

Rack Mount: Attaching Brackets .....................................................................

34

Figure 5

Rack Mount: Securing to the Rack ................................................................

34

Figure 6

Front Panel ....................................................................................................

35

Figure 7

Rear Panel ......................................................................................................

36

Figure 8

Entering IP Address in Internet Explorer ........................................................

39

Figure 9

Web Configurator: Login ...............................................................................

40

Figure 10

Web Configurator: Main Menu .......................................................................

40

Figure 11

Navigation Panel .............................................................................................

41

Figure 12

Navigation Panels: Screen-specific Link Panel ..............................................

42

Figure 13

System Setting: System ..................................................................................

43

Figure 14

System Tools: System Account ......................................................................

46

Figure 15

System Tools: Reset .......................................................................................

48

Figure 16

System Tools: Restart .....................................................................................

49

Figure 17

System Tools: Logging Out .............................................................................

49

Figure 18

System Settings: WAN/LAN: LAN Configuration ............................................

53

Figure 19

System Settings: WAN/LAN: WAN MAC Address ..........................................

54

Figure 20

System Settings: WAN/LAN: WAN IP .............................................................

55

Figure 21

System Settings: WAN/LAN: PPPoE ..............................................................

56

Figure 22

System Settings: WAN/LAN: PPTP ................................................................

58

Figure 23

System Settings: Server .................................................................................

59

Figure 24

NAT Example: One-to-One ............................................................................

65

Figure 25

NAT Example: Many-to-One ..........................................................................

66

Figure 26

NAT Example: One-to-One and Many-to-One ...............................................

66

Figure 27

System Settings: NAT Pool ............................................................................

67

Figure 28

CAS Example ................................................................................................

69

Figure 29

System Settings: Authentication ....................................................................

72

Figure 30

System: Authentication: Scenario Guide ........................................................

75

Figure 31

Subscriber Login: Scenario A .........................................................................

76

Figure 32

Subscriber Login: Scenario B .........................................................................

76

Figure 33

Subscriber Login: Scenario C .........................................................................

76

Figure 34

System Setting: Billing: Billing Profile .............................................................

78

Figure 35

System Settings: Billing: Billing Profile Setting ...............................................

79

Figure 36

System Setting: Billing: PMS Configuration ....................................................

81

Figure 37

Static Account: Links .......................................................................................

83

Figure 38

Static Account Settings: Global Settings .........................................................

83

List of Figures

15

VSG-1200 User’s Guide

Figure 39 System Settings: Create Static Subscriber Account .......................................

85

Figure 40 Create Static Subscriber Account: Generate Automatically ............................

86

Figure 41 Create Static Subscriber Account: Manual .....................................................

87

Figure 42 Static Subscriber Account: Backup and Restore ............................................

88

Figure 43 Static Subscriber Account: Backup and Restore: File Download ...................

88

Figure 44 Static Subscriber Account: Backup and Restore: Save As .............................

89

Figure 45 Static Subscriber Account: Backup and Restore ............................................

89

Figure 46 Static Account Operator ..................................................................................

90

Figure 47 Static Account Information Printout Example ..................................................

91

Figure 48 Static Account List ..........................................................................................

92

Figure 49 Dynamic Account: Links .................................................................................

93

Figure 50 Accounting: Dynamic Account Setting ............................................................

94

Figure 51 SP-200 Button Labels .....................................................................................

95

Figure 52 Dynamic Account Operator Panel ..................................................................

96

Figure 53 Dynamic Account Information Printout Example ............................................

96

Figure 54 Dynamic Account List .....................................................................................

97

Figure 55 Dynamic Account List Backup: File Download ...............................................

98

Figure 56 Dynamic Account List Backup: Save As .........................................................

99

Figure 57 System Setting: Port-Location Mapping .........................................................

102

Figure 58 Advanced Setting: Credit Card ......................................................................

106

Figure 59 Credit Card Customization: Standard Login Screen Message .......................

107

Figure 60 Credit Card Customization: Standard Login Screen Message: Preview .........

108

Figure 61 Credit Card Customization: Service Selection Page ......................................

109

Figure 62 Credit Card Customization: Service Selection Page: Preview ........................

111

Figure 63 Credit Card Customization: Successful Page .................................................

112

Figure 64 Credit Card Customization: Successful Page: Preview ..................................

113

Figure 65 Credit Card Customization: Fail Page ............................................................

113

Figure 66 Credit Card Customization: Fail Page: Preview ..............................................

114

Figure 67 Customization: Login .....................................................................................

116

Figure 68 Customization: Login: Standard ......................................................................

117

Figure 69 Subscriber Login Screen Example: Standard ...............................................

118

Figure 70 Customization: Login Screen: Redirect ..........................................................

118

Figure 71 Customization: Login Screen: Advanced ........................................................

119

Figure 72 Subscriber Login Screen Example: Advanced ...............................................

120

Figure 73 Customization: Login Screen: Frame .............................................................

120

Figure 74 Subscriber Login Screen Example: Frame .....................................................

121

Figure 75 Customization: Service Selection Customization ..........................................

122

Figure 76 Subscriber Login Screen Example: Service Selection Messages ..................

122

Figure 77 Customization: Information Window ...............................................................

124

Figure 78 Subscriber Pop-up Information Window Example ..........................................

125

Figure 79 Customization: Account Printout .....................................................................

128

Figure 80 Static Account Printout Example .....................................................................

130

Figure 81 Static Account with PMS Billing Printout Example ..........................................

130

16

List of Figures

 

VSG-1200 User’s Guide

Figure 82

Static Account Printout: Statement Printer Example .......................................

131

Figure 83

Static Account with PMS Billing Printout: Statement Printer Example ............

131

Figure 84

Dynamic Account Printout Example ...............................................................

132

Figure 85

Dynamic Account Printout: Statement Printer Example ..................................

132

Figure 86

Bandwidth Management: Activate ..................................................................

134

Figure 87

Bandwidth Management: Equal Share ...........................................................

134

Figure 88

Bandwidth Management: Class of Service .....................................................

135

Figure 89

Portal Page .....................................................................................................

137

Figure 90

Advertisement .................................................................................................

138

Figure 91

Walled Garden ................................................................................................

139

Figure 92

Subscriber Login Screen with Walled Garden Links Example .......................

140

Figure 93

Passthrough: Subscriber IP and MAC Address ..............................................

142

Figure 94

Passthrough: Destination URL and IP ............................................................

143

Figure 95

LAN Devices ...................................................................................................

146

Figure 96

LAN Device Remote Management Example 1 ...............................................

147

Figure 97

LAN Devices: Example 1 ................................................................................

148

Figure 98

LAN Device Remote Management Example 2 ...............................................

148

Figure 99

LAN Devices: Example 2 ................................................................................

149

Figure 100

Logs: Syslog ...................................................................................................

151

Figure 101

Logs: Log Settings ..........................................................................................

153

Figure 102

Advanced: Session Trace ...............................................................................

156

Figure 103

Session Trace Information Example .............................................................

157

Figure 104

SNMP Management Model .............................................................................

159

Figure 105

SNMP .............................................................................................................

161

Figure 106

System Status .................................................................................................

164

Figure 107

Current User List ............................................................................................

166

Figure 108

DHCP Clients ..................................................................................................

167

Figure 109

Session List ....................................................................................................

167

Figure 110

System Status: LAN Device Status .................................................................

168

Figure 111

System Status: Billing Log ..............................................................................

170

Figure 112

Billing Log Backup: File Download .................................................................

171

Figure 113

Billing Log Backup: Save As ...........................................................................

171

Figure 114

Billing Log Backup: Example File Content .....................................................

172

Figure 115

System Status: PMS Transaction Log ...........................................................

172

Figure 116

SSL Certificate Download ..............................................................................

174

Figure 117

System Settings: Server Configuration: Enable SSL Security ........................

175

Figure 118

System Settings: Authentication: Activate SSL Login .....................................

176

Figure 119

Installing the SSL Security Certificate: First Security Alert .............................

177

Figure 120

Installing the SSL Security Certificate: Second Security Alert ........................

177

Figure 121

Installing the SSL Security Certificate: View Certificate ..................................

178

Figure 122

Installing the SSL Security Certificate: Certificate Import Wizard ...................

178

Figure 123

Certificate Import Wizard: Location .................................................................

179

Figure 124

Certificate Import Wizard: Finish .....................................................................

179

List of Figures

17

VSG-1200 User’s Guide

Figure 125 Root Certificate Store ......................................................................................

180

Figure 126 Certificate Import Wizard ................................................................................

180

Figure 127 Certificate: Detailed Information .....................................................................

181

Figure 128 Security Alert: Trusted .................................................................................

181

Figure 129 HyperTerminal Communication Parameter Settings Example ........................

184

Figure 130 SMT: Login Screen ....................................................................................

185

Figure 131 SMT: Main Menu ............................................................................................

185

Figure 132 SMT: System Configuration ............................................................................

187

Figure 133 SMT: Change Administrator Password ..........................................................

188

Figure 134 SMT: Restart ..................................................................................................

189

Figure 135 SMT: Reset to Factory Defaults .....................................................................

189

Figure 136 SMT: WAN Configuration: Static or Dynamic IP Address ..............................

192

Figure 137 SMT: WAN Configuration: PPPoE .................................................................

193

Figure 138 SMT: WAN Configuration: PPTP ....................................................................

194

Figure 139 SMT: LAN Configuration ................................................................................

196

Figure 140 SMT: System Status .......................................................................................

197

Figure 141 Firmware Upgrade: Links ................................................................................

200

Figure 142 Firmware Upgrade: Manual ............................................................................

200

Figure 143 Web Configurator: Firmware Upgrade Successful .........................................

200

Figure 144 Firmware Upgrade: Manual Using a TFTP Server .........................................

201

Figure 145 Synchronization File Example ........................................................................

201

Figure 146 Scheduled Firmware Upgrade Example .........................................................

202

Figure 147 Firmware Upgrade: Scheduled .......................................................................

202

Figure 148 SMT: Utilities Main Menu ...............................................................................

203

Figure 149 SMT: Firmware Upgrade ................................................................................

204

Figure 150 SMT: Firmware Upgrade Process ..................................................................

204

Figure 151 System Tools: Configuration: Backup .............................................................

205

Figure 152 Configuration Backup: File Download .............................................................

205

Figure 153 Configuration Backup: Save As ......................................................................

206

Figure 154 System Tools: Configuration: Backup using TFTP ........................................

207

Figure 155 Configuration Backup: TFTP: Successful .......................................................

207

Figure 156 System Tools: Configuration: Restore ............................................................

208

Figure 157 System Tools: Configuration: Restore: TFTP .................................................

209

Figure 158 IP Address Conflicts: Scenario 1 ...................................................................

217

Figure 159 IP Address Conflicts: Scenario 2 ...................................................................

217

Figure 160 IP Address Conflicts: Scenario 3 ...................................................................

218

Figure 161 IP Address Conflicts: Scenario 4 ...................................................................

219

Figure 162 Subscriber Login Screen: Framed Example ..................................................

221

Figure 163 Subscriber Login: Information Window Example ...........................................

221

Figure 164 SP-200: Daily Account ...................................................................................

228

Figure 165 SP-200: Monthly Account ..............................................................................

229

Figure 166 SP-200: System Status ..................................................................................

230

Figure 167 SP-200: Network Statistics ............................................................................

231

18

List of Figures

 

VSG-1200 User’s Guide

Figure 168

WAN Port Cable Pin Assignments .................................................................

234

Figure 169

LAN Port Cable Pin Assignments ..................................................................

234

Figure 170

DB25 Male to DB9 Male Connector ............................................................

235

Figure 171

WIndows 95/98/Me: Network: Configuration ...................................................

238

Figure 172

Windows 95/98/Me: TCP/IP Properties: IP Address ........................................

239

Figure 173

Windows 95/98/Me: TCP/IP Properties: DNS Configuration ...........................

240

Figure 174

Windows XP: Start Menu .................................................................................

241

Figure 175

Windows XP: Control Panel .............................................................................

241

Figure 176

Windows XP: Control Panel: Network Connections: Properties ......................

242

Figure 177

Windows XP: Local Area Connection Properties .............................................

242

Figure 178

Windows XP: Advanced TCP/IP Settings ........................................................

243

Figure 179

Windows XP: Internet Protocol (TCP/IP) Properties ........................................

244

Figure 180

Macintosh OS 8/9: Apple Menu .......................................................................

245

Figure 181

Macintosh OS 8/9: TCP/IP ...............................................................................

245

Figure 182

Macintosh OS X: Apple Menu ..........................................................................

246

Figure 183

Macintosh OS X: Network ................................................................................

247

List of Figures

19

VSG-1200 User’s Guide

20

List of Figures

VSG-1200 User’s Guide

List of Tables

Table 1

Front Panel LEDs ............................................................................................

36

Table 2

Web Configurator Screen Overview ................................................................

42

Table 3

System Setting: System ...................................................................................

44

Table 4

System Tools: System Account .......................................................................

47

Table 5

System Settings: WAN/LAN: LAN Configuration .............................................

53

Table 6

System Settings: WAN/LAN: WAN MAC Address ...........................................

54

Table 7

System Settings: WAN/LAN: WAN IP ..............................................................

55

Table 8

System Settings: WAN/LAN: PPPoE ...............................................................

57

Table 9

System Settings: WAN/LAN: PPTP .................................................................

58

Table 10

System Settings: Server ..................................................................................

60

Table 11

NAT Definitions ................................................................................................

63

Table 12

WAN NAT Mapping Types for VPN ..................................................................

65

Table 13

NAT Example: One-to-One ..............................................................................

65

Table 14

NAT Example: Many-to-One ............................................................................

66

Table 15

NAT Example: One-to-One and Many-to-One .................................................

67

Table 16

System Settings: NAT Pool ..............................................................................

68

Table 17

System Settings: Authentication ......................................................................

73

Table 18

System: Authentication: Scenario Guide .........................................................

76

Table 19

System Setting: Billing: Billing Profile ..............................................................

78

Table 20

System Settings: Billing: Billing Profile Setting ................................................

79

Table 21

System Setting: Billing: PMS Configuration .....................................................

82

Table 22

Static Account Settings: Global Settings ..........................................................

84

Table 23

Create Static Subscriber Account: Generate Automatically .............................

86

Table 24

Create Static Subscriber Account: Manual ......................................................

87

Table 25

Static Account Operator ...................................................................................

90

Table 26

Static Account List ...........................................................................................

92

Table 27

Accounting: Dynamic Account Setting .............................................................

94

Table 28

Dynamic Account List ......................................................................................

97

Table 29

System Setting: Port-Location Mapping ..........................................................

102

Table 30

Advanced Setting: Credit Card ........................................................................

106

Table 31

Credit Card Customization: Service Selection Page .......................................

110

Table 32

Credit Card Customization: Successful Page ..................................................

112

Table 33

Credit Card Customization: Fail Page .............................................................

114

Table 34

Customization: Login: Standard .......................................................................

117

Table 35

Customization: Login Screen: Redirect ...........................................................

118

Table 36

Customization: Login Screen: Advanced .........................................................

119

Table 37

Customization: Login Screen: Frame ..............................................................

120

Table 38

Customization: Service Selection Customization ............................................

122

List of Tables

21

VSG-1200 User’s Guide

Table 39 Customization: Information Window ................................................................

124

Table 40 Customization: Account Printout ......................................................................

128

Table 41 Bandwidth Management: Equal Share ............................................................

135

Table 42

Portal Page ......................................................................................................

137

Table 43

Advertisement ..................................................................................................

138

Table 44

Walled Garden .................................................................................................

140

Table 45 Passthrough: Subscriber IP and MAC Address ...............................................

142

Table 46 Passthrough: Destination URL and IP .............................................................

144

Table 47

LAN Devices ....................................................................................................

146

Table 48

Logs: Syslog ....................................................................................................

151

Table 49 Logs: Log Settings ...........................................................................................

154

Table 50 Logs: Log Format .............................................................................................

154

Table 51 Advanced: Session Trace ................................................................................

156

Table 52 Session Trace File Fields ................................................................................

157

Table 53

SNMP ..............................................................................................................

161

Table 54

System Status ..................................................................................................

164

Table 55 Current User List ..............................................................................................

166

Table 56

DHCP Clients ...................................................................................................

167

Table 57

Session List .....................................................................................................

167

Table 58 System Status: LAN Device Status ..................................................................

168

Table 59 System Status: Billing Log ...............................................................................

170

Table 60 SSL Certificate Download ................................................................................

174

Table 61 SMT: Main Menu ..............................................................................................

186

Table 62 SMT: Control Key Descriptions ........................................................................

186

Table 63 SMT: System Configuration .............................................................................

187

Table 64 SMT: WAN Configuration: Static or Dynamic IP Address ................................

192

Table 65 SMT: WAN Configuration: PPPoE ...................................................................

193

Table 66 SMT: WAN Configuration: PPTP ......................................................................

194

Table 67 SMT: LAN Configuration ..................................................................................

196

Table 68 SMT: System Status .........................................................................................

197

Table 69 Firmware Upgrade: Scheduled ........................................................................

202

Table 70 Troubleshooting the Power LED ......................................................................

211

Table 71 Troubleshooting the LAN LED .........................................................................

211

Table 72 Troubleshooting the WAN LED ........................................................................

212

Table 73 Troubleshooting Console Port .........................................................................

212

Table 74 Troubleshooting Web Configurator ..................................................................

213

Table 75 Troubleshooting Internet Browser Display .......................................................

213

Table 76 Troubleshooting Internet Access .....................................................................

213

Table 77 Troubleshooting the Statement Printer ............................................................

214

Table 78 Product Specifications: General ......................................................................

215

Table 79 Product Specifications: Performance and Management ..................................

216

Table 80 Product Specifications: Physical and Environmental .......................................

216

Table 81 VSG-1200 Supported VSAs ............................................................................

224

22

List of Tables

 

 

VSG-1200 User’s Guide

Table 82 VSA-related Error Messages ...........................................................................

225

Table 83 SP-200: Report Printing Key Combination ......................................................

228

Table 84

SP-200: System Status ....................................................................................

230

Table 85

SP-200: Network Statistics ..............................................................................

232

Table 86

Network Cable Types .......................................................................................

233

Table 87

WAN Port Cable Ping Assignments .................................................................

233

Table 88

LAN Port Cable Pin Assignments ....................................................................

234

Table 89

Console Port Pin Assignment ..........................................................................

235

Table 90 DB25 Male to DB9 Male Connector Ping Assignment .....................................

235

Table 91

Classes of IP Addresses ..................................................................................

249

Table 92 Allowed IP Address Range By Class ...............................................................

250

Table 93

“Natural” Masks ..............................................................................................

250

Table 94

Alternative Subnet Mask Notation ...................................................................

251

Table 95

Two Subnets Example .....................................................................................

251

Table 96

Subnet 1 ..........................................................................................................

252

Table 97

Subnet 2 ..........................................................................................................

252

Table 98

Subnet 1 ..........................................................................................................

253

Table 99

Subnet 2 ..........................................................................................................

253

Table 100

Subnet 3 ..........................................................................................................

253

Table 101

Subnet 4 ..........................................................................................................

254

Table 102

Eight Subnets ..................................................................................................

254

Table 103

Class C Subnet Planning .................................................................................

254

Table 104

Class B Subnet Planning .................................................................................

255

List of Tables

23

VSG-1200 User’s Guide

24

List of Tables

VSG-1200 User’s Guide

Preface

Congratulations on your purchase of the VSG-1200 Vantage Service Gateway.

Note: Register your product online to receive e-mail notices of firmware upgrades and information at www.zyxel.com for global products, or at www.us.zyxel.com for North American products.

Your VSG-1200 is easy to install and configure.

About This User's Guide

This manual is designed to guide you through the configuration of your VSG-1200 for its various applications. The web configurator parts of this guide contain background information on features configurable by web configurator. The SMT parts of this guide contain background information solely on features not configurable by web configurator.

Note: Use the web configurator or System Management Terminal (SMT) to configure your VSG-1200. Not all features can be configured through all interfaces.

Related Documentation

Supporting Disk

Refer to the included CD for support documents.

ZyXEL Glossary and Web Site

Please refer to www.zyxel.com for an online glossary of networking terms and additional support documentation.

User Guide Feedback

Help us help you! E-mail all User Guide-related comments, questions or suggestions for improvement to techwriters@zyxel.com.tw or send regular mail to The Technical Writing Team, ZyXEL Communications Corp., 6 Innovation Road II, Science-Based Industrial Park, Hsinchu, 300, Taiwan. Thank you!

Syntax Convention

“Enter” means for you to type one or more characters. “Select” or “Choose” means for you to use one of the predefined choices.

Command and arrow keys are enclosed in square brackets. [ENTER] means the Enter, or carriage return key; [ESC] means the Escape key and [SPACE BAR] means the Space Bar.

Mouse action sequences are denoted using a comma. For example, “click the Apple icon, Control Panels and then Modem” means first click the Apple icon, then point your mouse pointer to Control Panels and then click Modem.

Preface

25

Zyxel VSG-1200 user manual

VSG-1200 User’s Guide

For brevity’s sake, we will use “e.g.,” as a shorthand for “for instance”, and “i.e.,” for “that is” or “in other words” throughout this manual.

The VSG-1200 Vantage Service Gateway may be referred to as the VSG-1200 or, simply, as the VSG in this User’s Guide.

Graphics Icons Key

Vantage Service Gateway

Computer

Notebook computer

 

 

 

Server

DSLAM

Firewall

 

 

 

Telephone

Switch

Router

 

 

 

Statement Printer (SP-

Access Point

 

200)

 

 

 

 

 

26

Preface

VSG-1200 User’s Guide

CHAPTER 1

Getting to Know Your VSG

This chapter introduces the features and applications of the VSG.

1.1 Introducing the VSG

The VSG (Vantage Service Gateway) is a rack-mountable Internet Service Gateway that provides multiple subscribers easy Internet connectivity. The VSG is ideal for office, hotspot and hotel environments.

Hotspots are public areas, such as airports, hotels, coffee shops, where end users (or subscribers) can access the Internet at any time.

1.2 Features

Your VSG provides the following features to accommodate subscribers with a variety of network configurations with little or no technical support.

Automatic Account Billing with Property Management System (PMS)

Many hotels use a PMS to perform in-room billing of services the guests use such as room service, mini-bar, pay-per-view TV or telephone usage. The VSG supports PMS from Micros Fidelios.

CAS (Central Authentication Service)

The Hilton Group Corporation developed the High Speed Internet Access (HSIA) service to provide Internet access service across its entire Hilton Group hotels. In order to use the HSIA, hotel guest(s) must be authenticated through the proprietary CAS. The CAS performs both user authentication and accounting.

Credit Card Billing

Your VSG is integrated with an online secure credit card billing service provider1 allowing you to use a credit card service to authorize, process, and manage credit transactions directly through the Internet.

1.At the time of writing, the VSG allows online credit card billing through Authorize.net.

Chapter 1 Getting to Know Your VSG

27

VSG-1200 User’s Guide

SSL Secure Login

With Secure Socket Layer (SSL) security activated upon login, data exchanged between the VSG and client computers is encrypted and protected.

PPPoE Support (RFC2516)

PPPoE (Point-to-Point Protocol over Ethernet) emulates a dial-up connection. It allows your ISP to use their existing network configuration with newer broadband technologies such as ADSL. The PPPoE driver on the VSG is transparent to the computers on the LAN, which see only Ethernet and are not aware of PPPoE; thus saving you from having to manage PPPoE clients on individual computers.

PPTP Support

Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of data from a remote client to a private server, creating a Virtual Private Network (VPN) using a TCP/IP-based network. PPTP supports on-demand, multi-protocol and virtual private networking over public networks, such as the Internet. Subscribers can use PPTP to connect to a broadband modem to achieve access to high-speed data networks via a familiar "dialup networking" user interface.

4-Port Switch

A combination of switch and Internet gateway makes your VSG a cost-effective and viable network solution. You can connect up to four computers to the LAN ports on the VSG without the cost of a hub. To connect more than four Ethernet devices, attach a hub or switch.

Reset Button

Use the reset button to restore the VSG back to its factory defaults.

Plug-and-Play Internet Access

The VSG provides Internet access to attached computer(s) without extra software installation or computer configuration. In addition, with transparent proxy, the VSG resolves any incompatible proxy settings.

Port Forwarding

Use this feature to forward incoming service requests to a server on your local network.

28

Chapter 1 Getting to Know Your VSG

VSG-1200 User’s Guide

DHCP Support

DHCP (Dynamic Host Configuration Protocol) allows the individual computers (DHCP clients) to obtain TCP/IP configuration at start-up from a centralized DHCP server. The VSG has built-in DHCP server capability. It can assign IP addresses, an IP default gateway and DNS servers to DHCP clients. The VSG can also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the actual real DHCP server to the DHCP clients.

RADIUS (Remote Authentication Dial-In User Service) Client

The VSG allows you to maintain a central subscriber database on an external RADIUS server. Subscriber accounting and authentication is then done through the external RADIUS server. In addition, the VSG supports Vendor Specific Attributes (VSAs) that allows enforcement of upload/download bandwidth limits or specific advertisement web page per subscriber.

Built-in Authentication and Local Subscriber Database

The VSG allows you to maintain a subscriber database on the VSG without setting up an external RADIUS server. Subscriber accounting and authentication are done using the local subscriber database.

Accounting

Accounting can be done using an external RADIUS server or the built-in accounting feature.

Local Content and Advertising Links

Once connected to the network, the VSG can redirect the subscriber to a specified web site and display advertising links. This can be a source of extra online advertising revenues and increased business exposure.

Access Control (Walled Garden)

With the walled garden feature, subscribers are able to access predetermined web sites without logging in. The VSG blocks full Internet access until the subscribers log in.

E-mail Forwarding

The VSG is able to forward and retrieve e-mail messages when the subscriber’s default e-mail server is down or behind a firewall.

DNS Proxy

With DNS proxy, the VSG provides DNS redirection when a subscriber’s configured DNS server is behind a firewall or located in a private Intranet.

Chapter 1 Getting to Know Your VSG

29

VSG-1200 User’s Guide

NAT (Network Address Translation)

NAT (RFC 1631) is the translation of the IP address of a host in a packet, for example, the source address of an outgoing packet, used within one network to a different IP address known within another network.

The VSG automatically performs NAT on the LAN. You can also set the VSG to perform NAT on the WAN for VPN (IPSec and PPTP) connections.

Subscriber Login Page Customization

You can customize the subscriber login page according to your business needs. The advanced settings allow you to include welcome messages, a company logo and basic formatting.

Dual-function Console Port

The VSG provides a console port for local management. You can also set this console port to act as the printer port when connected to an external statement printer.

Web Configurator Management

The VSG comes with an embedded web-based configurator. It offers advanced management features and allows you to manage the VSG remotely using Internet Explorer (version 4.0 or above) or Netscape (version 6.0 or later).

System Maintenance

The firmware of the VSG can be upgraded via the web configurator or the SMT menu. The Embedded FTP server is for firmware upgrades as well as configuration file backups and restoration.

Ease of Installation

Your VSG is designed for quick, intuitive and easy installation. It can be mounted on a desktop or standard 19” rack.

1.3 Applications

The following sections describe network application examples in which the VSG is used.

1.3.1 Internet Access for LAN Networks

With a broadband service account set up, the VSG allows the attached computers to enjoy high speed Internet access.

30

Chapter 1 Getting to Know Your VSG

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