Enterasys Aurorean ANG-3000 User manual

Installation & Service
Installation & ServiceInstallation & Service
Installation & Service
Guide
GuideGuide
Guide
Version 3.5
Version 3.5Version 3.5
Version 3.5
Aurorean Policy Server
Aurorean Policy ServerAurorean Policy Server
Aurorean Policy Server
Aurorean Network Gateway
Aurorean Network GatewayAurorean Network Gateway
Aurorean Network Gateway
Aurorean™ Virtual Network
Aurorean™ Virtual NetworkAurorean™ Virtual Network
Aurorean™ Virtual Network

ii Aurorean Installation & Service Guide
Notice
Enterasys Networks and its licensors reserve the right to make changes in specifications and other information
contained in this document without prior notice. The reader should in all cases consult Enterasys Networks to
determine whether any such changes have been made. The hardware, firmware, or software described in this
manual is subject to change without notice.
IN NO EVENT SHALL ENTERASYS NETWORKS AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL,
INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES WHATSOEVER (INCLUDING BUT NOT LIMITED TO
LOST PROFITS) ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT,
EVEN IF ENTERASYS NETWORKS AND ITS LICENSORS HAVE BEEN ADVISED OF, KNOWN, OR SHOULD
HAVE KNOWN, THE POSSIBILITY OF SUCH DAMAGES.
Enterasys Networks, Inc.
35 Industrial Way
Rochester, NH 03866-5005
Part No.: AVN-ISG-R31
Enterasys Networks, Inc. is a subsidiary of Cabletron Systems, Inc. 2001 by Enterasys Networks, Inc. All Rights
Reserved Printed in the United States of America
The Enterasys Networks logo, Aurorean, Prescriptive Diagnostics Engine, RiverMaster, Intelligent Client Routing,
TollSaver are trademarks of Enterasys Networks.
Microsoft, MS, and MS-DOS are registered trademarks and Windows, Windows 95, Windows 98, Windows NT,
Windows 2000 Professional and Windows Millennium are trademarks of Microsoft Corporation in the USA and other
countries.
Virtual Network Computing is a trademark of AT&T Laboratories Cambridge.
ActiveState, ActivePerl, and PerlScript are trademarks of ActiveState Tool Corp.
Other trademarks and trade names used in this publication belong to their respective owners.
Aurorean Virtual Network software includes the following third-party components:
Commercial support for ActivePerl is available through PerlClinic at http://www.ActiveState.com. Peer support resources for
ActivePerl issues can also be found at the ActiveState Web site under support at http://ActiveState.com/support/. The ActiveStae
Repository has a large collection of modules and extensions in binary packages that are easy to install and use. To view and
install these packages, use the Perl Package Manager (PPM) which is included with ActivePerl. ActivePerl is the latest Perl
binary distribution from ActiveState and replaces what was previously distributed as Perl for Win32. The latest release of
ActivePerl as wel as other professional tools for Perl developers are available from the ActiveState Web site.
Gate Daemon software © 1995 The Regents of the University of Michigan. All rights reserved.
Gate Daemon was originated and developed through release 3.0 by Cornell University and its collaborators.
A DES implementation written by Eric Young © 1995-1997 Eric Young ([e-mail]). All rights reserved.
MD4 and MD5 implementation derived from the RSA Data Security, Inc. MD4 Message-Digest Algorithm and
MD5 Message-Digest Algorithm © 1991-2, RSA Data Security, Inc. Created 1991. All rights reserved.
ccp.c - PPP Compression Control Protocol © 1994 The Australian National University. All rights reserved.
chap.c - Cryptographic Handshake Authentication Protocol © 1991 Gregory M. Christy. All rights reserved.
chap_ms.c - Microsoft MS-CHAP compatible implementation © 1995 Eric Rosenquist, Strata Software Limited
(www.strataware.com). All rights reserved.
fsm.c - {Link, IP} Control Protocol Finite State Machine © 1989 Carnegie Mellon University. All rights reserved.
Routines to compress and uncompress TCP packets (for transmission over low speed serial lines) © 1989 Regents of the
University of California. All rights reserved.
Portions of the Aurorean Client Software are copyrighted to ICE Engineering, Inc. and licensed through a GNU public license. For
more information, including access to the source code, visit their Web site at www.ice.com.

Aurorean Installation & Service Guide iii
Federal Communications Commission (FCC) Notices
The Aurorean Policy Server and Aurorean Network Gateway comply with Title 47 Part 15, Subpart B of FCC Rules.
Operation is subject to the following two conditions:
• These devices may not cause harmful interference.
• These devices must accept any interference received, including interference that may cause undesired opera-
tion.
NOTICE: The ANG-3000/7000 has been tested and found to comply with the limits for a Class A 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 create radio frequency energy
and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area can cause harmful interference, in which case the
user will be required to correct the interference at his/her own expense.
Modifications or changes made to this device, and not approved by Enterasys Networks may void the authority
granted by the FCC or other such agency to operate this equipment.
There are no user-repairable components in the Aurorean Policy Server or Aurorean Network Gateway.
European Notices
The ANG-1100 has been tested and found to comply with the CISPR 22:1997 Class B regulation.
Canadian Notices
The APS/ANG-3000/7000 does not exceed the Class A limits and the ANG-1100 does not exceed the Class B limits
for the radio noise emissions from digital apparatus set out in the interference-causing equipment standard entitled
“Digital Apparatus”, ICES-003 of the Department of Communications (Cet appareil numérique respecte les limites
bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur le matériel
brouilleur: “Appareils Numériques”, NMB-003 édictée par le ministre des Communications).
NOTICE: The Industry Canada label identifies certified equipment. This certification means that the equipment meets
certain telecommunications network protective, operational and safety requirements. The Department does not
guarantee the equipment will operate to the user's satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local
telecommunications company. The equipment must also be installed using an acceptable method of connection. In
some cases, the inside wiring associated with a single line individual service may be extended by means of a certified
connector assembly. The customer should be aware that compliance with the above conditions may not prevent
degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility designated by the
supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, may give the
telecommunications company cause to request the user to disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power utility, telephone lines
and internal metallic water pipe system, if present, are connected together. This precaution may be particularly
important in rural areas.
CAUTION: Users should not attempt to make such connections themselves, but should contact the appropriate
electric inspection authority, or electrician, as appropriate.

iv Aurorean Installation & Service Guide
ELECTRICAL HAZARD: Only qualified personnel should perform installation
procedures.
Important Safety Instructions
1) Read these instructions carefully. Save these instructions for future reference.
2) Follow all warnings and instructions marked on the product.
3) Unplug these products from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners.
Use a damp cloth for cleaning.
4) Do not use these products near water.
5) Do not place these products on an unstable cart, stand, or table. The product may fall, causing serious
damage to the product. Enterasys Networks recommends securely fastening the server to a standard 19”
equipment rack.
6) Slots and openings in the chassis are provided for ventilation; to ensure reliable operation of the product
and to protect it from overheating, these openings should not be blocked or covered. The openings should
never be blocked by placing the product on a bed, sofa, rug, or other similar surface. These products should
never be placed near or over a radiator or heat register, or in a built-in installation unless the proper
ventilation is provided.
7) These products should be operated from the type of power indicated on the marking label. If you are not
sure of the type of power available, consult Enterasys Networks or your local power company.
8) Do not allow anything to rest on the power cord. Do not locate these products where persons will walk on
the cord.
9) If an extension cord is used with these products, make sure that the total ampere rating of the equipment
plugged into the extension cord does not exceed the extension cord ampere rating. Also, make sure that the
total rating of all products plugged into the wall outlet does not exceed the fuse rating.
10) Never push objects of any kind into these products through chassis slots as they may touch dangerous
voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on
the product.
11) Do not attempt to service these products yourself, as operating or removing covers may expose you to
dangerous voltage points or other risks. Refer all servicing to qualified service personnel.
12) Unplug these products from the wall outlet and refer servicing to qualified service personnel under the
following conditions:
a) When the power cord or plug is damaged or frayed.
b) If liquid has been spilled into the product.
c) If the product has been exposed to rain or water.
d) If the product does not operate normally when the operating instructions are followed. Adjust only
those controls that are covered by the operating instructions since improper adjustment of other
controls may result in damage and will often require extensive work by a qualified technician to restore
the product to normal condition.
e) If the product has been dropped or the chassis has been damaged.
f) If the product exhibits a distinct change in performance, indicating a need for service.
13) Use only the proper type of power supply cord set (provided in your accessories box) for this unit. It should
be a detachable type, UL listed/CSA certified, type SPT-2, rated 7A 125V minimum, VDE approved or
equivalent. Maximum length is 15 feet (4.6 meters).

Table of Contents
Table of ContentsTable of Contents
Table of Contents
Aurorean Installation & Service Guide v
About This Guide
Contents of the Guide ...........................................................................................................xi
Conventions Used in This Guide.......................................................................................xiii
Related Publications............................................................................................................xiv
Chapter 1 – Overview
System Description..................................................................................................................1
Aurorean Client Software................................................................................................2
Aurorean Policy Server....................................................................................................3
Standard Features..................................................................................................... 5
Aurorean Network Gateway...........................................................................................6
Standard Features..................................................................................................... 8
RiverMaster Management Application.........................................................................9
Aurorean Web Config ....................................................................................................11
Aurorean Software Update Service..............................................................................11
Installation Overview............................................................................................................12
Chapter 2 – Mounting & Connecting Systems
Before You Begin....................................................................................................................13
Tools & Cables.................................................................................................................13
Location Planning...........................................................................................................14
Mounting the ANG/APS-3000/7000..................................................................................14
Placing on a Tabletop or Shelf.......................................................................................14
Mounting in a Relay-Style Rack ...................................................................................14
Installing in a Four-Post 19” Rack or Cabinet with Sliding Rails............................16

Table of Contents
vi Aurorean Installation & Service Guide
Remove the Chassis Sections from the Rail Assemblies.................................. 16
Attach the Chassis Sections to the System......................................................... 17
Attach Front Brackets to the Rail Assemblies.................................................... 17
Determine Correct Position for the Rear Brackets............................................ 18
Attach the Rear Brackets to the Rail Assemblies............................................... 19
Install the Assembled Rails into the Rack.......................................................... 20
Install the System in the Rack .............................................................................. 22
Secure the System to the Rack.............................................................................. 23
Removing the System From the Rack................................................................. 23
Connecting Cables ................................................................................................................ 25
Ethernet Cables............................................................................................................... 25
Connecting an Aurorean Policy Server.............................................................. 25
Connecting an ANG-3000/7000 .......................................................................... 26
Connecting Power................................................................................................................. 28
ANG-3000/7000 ............................................................................................................. 28
Controlling System Configuration ..................................................................................... 29
Chapter 3 – Installing Software & Setting Networking
Configurables
Before You Begin ................................................................................................................... 31
Installing APS-3000/7000 Software.................................................................................... 32
Using the APS-3000/7000 Checklist............................................................................ 36
Installing New System Software on the ANG-3000/7000............................................... 37
Upgrading Linux Kernel from V3.x to V3.5............................................................... 38
FTP the New Linux Kernel to the ANG ............................................................. 38

Table of Contents
Aurorean Installation & Service Guide vii
Install the New Linux Kernel................................................................................ 38
Transfer the New ANG Installation File to the ANG................................................39
Install New ANG System Software..............................................................................40
Verify ANG’s Date and Time ........................................................................................40
Change the Time Zone........................................................................................... 40
Change the Date and Time.................................................................................... 40
Reboot the ANG..............................................................................................................41
Configuring General Values of the ANG-3000/7000........................................................42
Installing the Indus River Certificate...........................................................................43
Using Internet Explorer (5.x or greater versions only) ..................................... 43
Using Netscape (4.x or higher versions only) .................................................... 49
Logging On the ANG.....................................................................................................57
Configuring General Parameters..................................................................................59
ANG-3000/7000 Installation and Configuration Checklist......................................63
Configuring the Remote ANG-3000/7000 .........................................................................65
Setting Routing Parameters...........................................................................................65
Setting RIP Properties............................................................................................ 65
Setting OSPF Properties......................................................................................... 66
Setting Static Routes............................................................................................... 67
Setting External Routes.......................................................................................... 69
Configuring Subnet Parameters ...................................................................................71
Configuring Name Server Parameters ........................................................................73
Configuring Authentication Parameters.....................................................................74
Setting Group Parameters..................................................................................... 74
Setting User Parameters ........................................................................................ 76
Configuring Protocols Parameters...............................................................................78

Table of Contents
viii Aurorean Installation & Service Guide
Setting IPsec Parameters....................................................................................... 78
Setting PPTP Parameters ...................................................................................... 81
Configuring Site-to-Site Parameters............................................................................ 82
Backing Up the ANG Configuration.................................................................................. 85
Viewing ANG Statistics........................................................................................................ 87
Chapter 4 – Basic System Operation
Powering Up a System ......................................................................................................... 91
Checking LEDs...................................................................................................................... 93
APS/ANG-3000/7000 Front Panel LEDs................................................................... 93
Resetting a System ................................................................................................................ 96
APS/ANG-3000/7000 Series........................................................................................ 96
Appendix A – Specifications
Aurorean Policy Server Specifications............................................................................. 100
Aurorean Network Gateway Specifications.................................................................... 102
Appendix B – Pin Assignments
Ethernet................................................................................................................................. 105
Serial Ports............................................................................................................................ 107
Keyboard and Mouse.......................................................................................................... 108
Appendix C – License Agreement & Support
Enterasys Networks, Inc. Program License Agreement................................................ 109
License ...................................................................................................................................110
Other Restrictions.................................................................................................................110
Applicable Law.....................................................................................................................110
Export Requirements...........................................................................................................110

Table of Contents
Aurorean Installation & Service Guide ix
United States Government Restricted Rights ..................................................................111
Exclusion of Warranty.........................................................................................................111
No Liability for Consequential Damages.........................................................................112
Technical Support.................................................................................................................112
Support from Enterasys Networks.............................................................................112
On-line Services .................................................................................................... 112
Phone Support....................................................................................................... 113
Returning Products for Repair....................................................................................113
Appendix D – Aurorean System Upgrades
Upgrading from Release 2.x to 3.5.....................................................................................115
Backup APS Management Database on RiverMaster PC.......................................115
Reconfigure the APS 3000/7000 .................................................................................117
FTP the New Linux Kernel to the ANG.....................................................................119
Install the New Linux Kernel......................................................................................120
FTP the ANG Installation Kit to the ANG.................................................................120
Install the ANG Software.............................................................................................121
Verify the VPN is Up and Running............................................................................121
Upgrade RiverMaster...................................................................................................122
Upgrading Release 3.x to 3.5..............................................................................................123
APS Set-up & Configuration.......................................................................................123
ANG Software Upgrade Preparation (3000/7000 only)..........................................124
ANG Linux Kernel Upgrade (3000/7000).................................................................125
ANG Software Upgrade (3000/7000 only) ...............................................................125
Verifying the ANG Configuration..............................................................................125
Index

Aurorean Installation & Service Guide xi
About This Guide
About This GuideAbout This Guide
About This Guide
This guide describes how to mount, connect, power-up, and maintain an
Aurorean™Virtual Network system from Enterasys Networks. Two types of
Aurorean systems are available:
!The Aurorean Policy Server (APS) which maintains Aurorean Virtual
Network configuration settings and coordinates remote user
authentication. Policy Servers are available in two models: the
APS-3000 for small- to medium-sized networks and the APS-7000 for
large enterprise networks.
!The Aurorean Network Gateway (ANG) which terminates secure tunnel
connections from remote users and another ANG. Network
Gateways are available in three models: the ANG-1100 for up to 25
tunnels in a home or small office, the ANG-3000 for small- to
medium-sized networks (up to 500 simultaneous tunnels) and the
ANG-7000 for large enterprise networks (up to 5000 simultaneous
tunnels).
Because Aurorean systems share many of the same physical traits, this guide
contains installation instructions for all types and models.
The guide is written for network administrators who are responsible for
implementing and maintaining an enterprise virtual private network (VPN)
solution. The guide assumes you have experience installing network devices
such as routers, hubs, and file servers.
Contents of the Guide
Information in this guide is arranged as follows:
!Chapter 1, Overview highlights the features and functions of the
Aurorean Policy Server, Aurorean Network Gateways, and the
RiverMaster management application.
!Chapter 2, Mounting & Connecting describes how to physically mount,
connect, and power-up Aurorean servers.

xii Aurorean Installation & Service Guide
Contents of the Guide About This Guide
!Chapter 3, Software Installation & Network Addressing details how to
install system software on the Aurorean Policy Server (including the
TollSaver database), and configure both the Policy Server and
Network Gateway with the Web Config management application.
!Chapter 4, Basic Server Operation addresses common operational tasks,
such as viewing LEDs, resetting the server, changing keyboard and
time zone settings, and provides instructions for correcting
hardware-related problems.
!Appendix A,Specifications provides essential physical and operational
characteristics of Aurorean servers.
!Appendix B, Cables & Connectors contains pin assignments and simple
cable diagrams useful when fabricating cables to connect to Aurorean
servers.
!Appendix C, License Agreement & Support describes the warranty terms
and support policies covering Enterasys Networks products.
!Appendix D, Aurorean System Upgrades, details how to upgrade your
Aurorean servers from Release 2.xto 3.5 and Release 3.x to 3.5.

Aurorean Installation & Service Guide xiii
About This Guide Conventions Used in This Guide
Conventions Used in This Guide
The following conventions are used in this guide:
NOTE Notes supply additional helpful information,
provide a cross-reference to the source of more
information, or emphasize issues you should
consider when performing an action.
CAUTION Cautions contain directions that can prevent you
from damaging the product or losing data.
WARNING Warnings provide directions that you must
follow to avoid harming yourself.
Bold Text in boldface indicates values you type using
the keyboard or select using the mouse (for
example, a:\setup). Default settings may also
appear in bold.
Italics Text in italics indicates a variable, important new
term, or the title of a manual.
SMALL CAPS Small caps specify the keys to press on the
keyboard; a plus sign (+) between keys indicates
that you must press the keys simultaneously (for
example, CTRL+ALT+DEL).
Courier font Text in this font denotes a file name or directory.

xiv Aurorean Installation & Service Guide
Related Publications About This Guide
Related Publications
The following publications are also supplied with Aurorean systems:
!Quick Setup cards that highlight the basic steps required to install
either an Aurorean Policy Server or Aurorean Network Gateway.
!RiverMaster Administrator’s Guide that describes how to use the
RiverMaster application to create remote user accounts, define access
policies, select tunnel protocol settings, and track activity.
!The ANG-1100 User’s Guide that details how to install and configure
the small office/home office Network Gateway.
!The Aurorean Client User’s Guide which describes installation and use
of the Aurorean Client for either remote access or networked users.
Portable Document File (PDF) versions of these publications are available on
the Aurorean System Software CD. Using Adobe Acrobat Reader 3.0 (or
later), you can view these manuals on-line or print additional copies. Acrobat
Reader can be downloaded from the CD or the Adobe web site at
www.adobe.com.
NOTE
All Aurorean documentation can be found at this URL:
http://www.enterasys.com/support/manuals

Aurorean Installation & Service Guide 1
1
Overview
OverviewOverview
Overview
This chapter describes the key features of Aurorean systems: the Aurorean
Network Gateway (ANG) and Aurorean Policy Server (APS). These features
are synonymous with all ANG/APS system models unless otherwise
specified. The chapter also highlights the capabilities of the RiverMaster
management application, which you install on a computer to set up and
monitor your Aurorean Virtual Network.
System Description
The Aurorean Virtual Network family of enterprise VPN products consists of
the following components:
!Aurorean Client Software
!Aurorean Policy Server
!Aurorean Network Gateway
!RiverMaster Management Application
!Aurorean Web Config
!Aurorean Software Update Service
These components form an end-to-end VPN solution that enable enterprises
to extend the edge of their networks anywhere in the world. Figure 1
illustrates the components of a typical Aurorean Virtual Network and
identifies the role played by each component.

2Aurorean Installation & Service Guide
System Description Chapter 1
Overview
Figure 1 Typical Aurorean Virtual Network
Aurorean Client Software
The Aurorean Client Software is a Windows-based application that provides
remote users with a simple and efficient means of accessing the corporate
network by creating a tunnel through the Internet. Aurorean Client builds
tunnel connections in two stages: first it dials into an Internet Service
Provider (ISP) office (known as a point-of-presence, or POP), and then
negotiates a secure connection with the Aurorean Network Gateway located
on the corporate network. For more information on the Aurorean Client, refer
to the Aurorean Client Software User’s Guide or Quick Reference Card.
Aurorean Client
ANG-3000/7000
APS3000/7000
Firewall
- Selects closest ISP POP
- Dials into ISP POP
- Negotiates tunnel with
ISP = Internet Service Provider
POP = Point-of-Presence (local office with Internet access equipment)
INTERNET
RiverMaster
- Defines user/group policies
- Displays message/alarm activity
- Configures system network settings
- Negotiates tunnel protocols
- Compresses data over tunnel
- Authenticates Aurorean
users (or forwards login
requests to RADIUS servers)
- Encrypts data over tunnel
ISP
POP
TollSaver = Aurorean database containing ISP POP phone numbers
- Logs message/alarm activity
- Maintains master TollSaver
database
ANG-3000/7000
Aurorean Network Gateway
ANG-1100
Router

Aurorean Installation & Service Guide 3
Chapter 1 System Description
Overview
Aurorean Policy Server
Within an Aurorean Virtual Network, the Aurorean Policy Server performs
the following primary tasks:
!Manages remote user authentication by authenticating users against
user/group databases stored on its own hard drive or by forwarding
authentication requests to an external authentication server, such as a
RADIUS server.
!Maintains log files of activity and alarm messages exchanged
throughout the Aurorean Virtual Network; this information is
viewed from the RiverMaster management application.
!Contains the master TollSaver database, which is customized by the
network administrator and distributed to Aurorean users.
!Maintains the Virtual Network configuration database.
!Maintains all data and Client software upgrade files for Data and
Software Synchronization.
The two models of Policy Servers, the APS-3000 and APS-7000, are similar in
appearance and features, and differ in capacity and performance. Figure 2
shows the front and rear views of the Servers equipped with standard
hardware features.

4Aurorean Installation & Service Guide
System Description Chapter 1
Overview
Figure 2 Aurorean Policy Server Front & Rear View
10/100BaseT Ethernet
port to connect trusted
LAN (behind firewall)
CD ROM drive for installing
Aurorean Software updates
APS-3000/7000
FRONT
APS-3000/7000
REAR
Complete set of
diagnostic LEDs
Floppy disk drive

Aurorean Installation & Service Guide 5
Chapter 1 System Description
Overview
Standard Features
A standard APS comes equipped with the following:
!Low profile (1U) chassis that can be mounted into standard 19”racks
(midmount or sliding rail hardware provided).
!90-135, 180-265 VAC switchable power supply.
!High-performance CPU (800 MHz Pentium III for the APS-7000,
566 MHz Celeron in the APS-3000).
!CD-ROM drive for loading up-to-date ISP POP databases and
diagnostic scripts as part of the Aurorean Software Update Service,
and for upgrading system software.
!Floppy Drive for downloading reports and diagnostic data.
!Complete set of diagnostic LEDs that show the server’s operational
status and alert you when to check the RiverMaster message/alarm
log.
!10/100Base-T (autosensing) Ethernet port to connect the Aurorean
Policy Server to the corporate network.
For detailed Aurorean Policy Server hardware specifications, refer to
Appendix A.

6Aurorean Installation & Service Guide
System Description Chapter 1
Overview
Aurorean Network Gateway
Within an Aurorean Virtual Network, the Aurorean Network Gateway
performs the following primary tasks:
!Negotiates tunnel protocols with remote PCs running the Aurorean
Client Software and/or remote Aurorean Network Gateways for Site-
to-Site connectivity. The ANG-1100 is employed in a Site-to-Site
configuration only.
!Compresses and encrypts the data passing over the tunnel
connection to improve performance and ensure security.
!Reports detailed statistics on each tunnel connection which may be
viewed using the RiverMaster management application.
Two of the three models of Network Gateways, the ANG-3000 and
ANG-7000, are similar in appearance and features, and differ only in capacity
and performance. Figure 3 shows the front and rear views of each server
equipped with standard hardware features, as well as the features of the third
model, the ANG-1100.