Nomadix Access Gateways User manual

ACCESS GATEWAY
Access Gateway
Copyright © 2010 Nomadix, Inc. All Rights Reserved.
This product also includes software developed by: The University of California,
Berkeley and its contributors; Carnegie Mellon University, Copyright © 1998 by
Carnegie Mellon University All Rights Reserved; Go Ahead Software, Inc.,
Copyright © 1999 Go Ahead Software, Inc. All Rights Reserved; Livingston
Enterprises, Inc., Copyright © 1992 Livingston Enterprises, Inc. All Rights
Reserved; The Regents of the University of Michigan and Merit Network, Inc.,
Copyright 1992 – 1995 All Rights Reserved; and includes source code covered by
the Mozilla Public License, Version 1.0 and OpenSSL.
This User Guide is protected by U.S. copyright laws. You may not transmit, copy,
modify, or translate this manual, or reduce it or any part of it to any machine
readable form, without the express permission of the copyright holder.

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Trademarks
The symbol, and Nomadix Service Engine™ are trademarks
of Nomadix, Inc. All other trademarks and brand names are marks of their respective holders.
Product Information
Telephone: [phone]
Fax: [phone]
For technical support information, see the Appendix in this User Guide.
Patent Information
Covered by one or more of the following U.S. and foreign patents: US6,130,892; AU740012,
中国发明专利 98805023.4, Israel 131831, Korea 528156, Mexico 222100, New Zealand
337772; US6,868,399; US7,117,526, EU1226687 (validated in: BE1226687, FI1226687,
FR1226687, DE60028229.5, GB1226687, IE1226687, NL1226687, ES1226687, SE1226687,
CH1226687); US7,197,556, EU1224788 (validated in: BE1224788, CH1224788,
DE60011799.5-08, ES1224788, FI1224788, FR1224788, GB1224788, NL1224788,
SE1224788); US6,636,894, EU1222791 (validated in: BE1222791, FI1222791, FR1222791,
DE60020588.6, GB1222791, NL1222791, ES1222791, SE1222791, CH1222791); SG88575,
中国发明专利 00815828.2, AU2006207853; US6,789,110, Japan 3880856, Korea 559357,
SG88483, 中国发明专利 00815982.3, EU1234425 (validated in: BE1234425, FI1234425,
FR1234425, DE60029819.1, GB1234425, IE1234425, NL1234425, ES1234425, SE1234425,
CH1234425); US7,088,727; US6,857,009; US7,194,554, AU779137, Korea 0687837,
SG88465, 中国发明专利 00815827.4; US7,554,995; US7,698,432, EU1232610 (validated in:
BE1232610, FI1232610, FR1232610, DE60041352.7, GB1232610, IE1232610, IT1232610,
NL1232610, ES1232610, SE1232610, CH1232610); and US7,689,716. European patents
(EU) only validated in the indicated states. Other U.S. and foreign patents pending or granted.
Disclaimer
Nomadix, Inc. makes no warranty, either express or implied, including but not limited to any
implied warranties of merchantability and fitness for a particular purpose, regarding the
product described herein. In no event shall Nomadix, Inc. be liable to anyone for special,
collateral, incidental, or consequential damages in connection with or arising from the use of
Nomadix, Inc. products.
Write your product serial number in this box:

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WARNING
Risk of electric shock; do not open; no user-serviceable
parts inside.
AVERTISSEMENT
Risque de choc electrique; ne pas ouvrir; ne pas tenter de
demontre l’appareil.
WARNUNG
Nicht öffnen; elektrische Bauteile.
AVISO
Riesgo de shock eléctrico. No abrir. No hay piezas
configurables dentro.
CAUTION
Read the instruction manual prior to operation.
ATTENTION
Lire le mode d’emploi avant utilisation.
ACHTUNG
Lesen Sie das Handbuch bevor Sie das Gerät in Betrieb
nehmen.
PRECAUCIÓN
Leer el manual de instrucciones antes de poner en
marcha el equipo.
30851 Agoura Rd, Suite 102, Agoura Hills, CA 91301 USA (head office)

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vii
Table of Contents
Table of Contents ...........................................................................................................vii
Chapter 1: Introduction .................................................................................................. 1
About this Guide....................................................................................................................... 1
Organization.............................................................................................................................. 1
Welcome to the Access Gateway.............................................................................................. 2
Product Configuration and Licensing ............................................................................... 2
Key Features and Benefits ........................................................................................................ 2
Platform Reliability............................................................................................................ 3
Local Content and Services ............................................................................................... 3
Transparent Connectivity .................................................................................................. 4
Billing Enablement ............................................................................................................ 4
Access Control and Authentication.................................................................................... 5
Security .............................................................................................................................. 5
5-Step Service Branding .................................................................................................... 5
NSE Core Functionality............................................................................................................ 6
Access Control................................................................................................................... 7
Bandwidth Management .................................................................................................... 8
Billing Records Mirroring ................................................................................................. 8
Bridge Mode ...................................................................................................................... 8
Command Line Interface ................................................................................................... 9
Credit Card........................................................................................................................ 9
Dynamic Address Translation™........................................................................................ 9
Dynamic Transparent Proxy.............................................................................................. 9
End User Licensee Count ................................................................................................ 10
External Web Server Mode.............................................................................................. 10
Home Page Redirect........................................................................................................ 10
iNAT™............................................................................................................................. 10
Information and Control Console.................................................................................... 11
Internal Web Server......................................................................................................... 12
International Language Support...................................................................................... 13
IP Upsell.......................................................................................................................... 13
Logout Pop-Up Window .................................................................................................. 13
MAC Filtering.................................................................................................................. 14
Multi-Level Administration Support................................................................................ 14
NTP Support .................................................................................................................... 14
Portal Page Redirect ....................................................................................................... 14
RADIUS-driven Auto Configuration................................................................................ 15

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RADIUS Client................................................................................................................. 15
RADIUS Proxy ................................................................................................................. 15
Realm-Based Routing....................................................................................................... 16
Remember Me and RADIUS Re-Authentication............................................................... 16
Secure Management......................................................................................................... 16
Secure Socket Layer (SSL) ............................................................................................... 17
Secure XML API............................................................................................................... 17
Session Rate Limiting (SRL)............................................................................................. 18
Session Termination Redirect........................................................................................... 18
Smart Client Support........................................................................................................ 18
SNMP Nomadix Private MIB........................................................................................... 18
Static Port Mapping ......................................................................................................... 19
Tri-Mode Authentication.................................................................................................. 19
URL Filtering................................................................................................................... 19
Walled Garden ................................................................................................................. 19
Web Management Interface ............................................................................................. 20
Optional NSE Modules............................................................................................................ 20
Hospitality Module........................................................................................................... 20
High Availability Module................................................................................................. 20
Network Architecture (Sample) .............................................................................................. 21
Online Help (WebHelp) .......................................................................................................... 22
Notes, Cautions, and Warnings............................................................................................... 23
Chapter 2: Installing the Access Gateway.................................................................... 25
Unpacking the Access Gateway.............................................................................................. 26
Installation Workflow.............................................................................................................. 27
Powering Up the System......................................................................................................... 28
Logging In to the Command Line Interface............................................................................ 29
The Management Interfaces (CLI and Web)........................................................................... 31
Making Menu Selections and Inputting Data with the CLI.............................................. 31
Menu Organization (Web Management Interface) .......................................................... 32
Inputting Data – Maximum Character Lengths............................................................... 34
Online Documentation and Help...................................................................................... 35
Quick Reference Guide ........................................................................................................... 36
Establishing the Start Up Configuration.................................................................................. 36
Assigning Login User Names and Passwords.................................................................. 37
Setting the SNMP Parameters (optional)......................................................................... 38
Enabling the Logging Options (recommended) ............................................................... 39
Assigning the Location Information and IP Addresses.................................................... 42
Logging Out and Powering Down the System........................................................................ 44
Connecting the Access Gateway to the Customer’s Network................................................. 44
Establishing the Basic Configuration for Subscribers............................................................. 45
Setting the DHCP Options ............................................................................................... 45
Setting the DNS Options................................................................................................... 47

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ix
Archiving Your Configuration Settings.................................................................................. 48
Installing the Nomadix Private MIB....................................................................................... 48
Chapter 3: System Administration............................................................................... 51
Choosing a Remote Connection.............................................................................................. 51
Using the Web Management Interface (WMI)................................................................. 52
Using an SNMP Manager................................................................................................ 52
Using a Telnet Client....................................................................................................... 53
Logging In............................................................................................................................... 53
About Your Product License................................................................................................... 53
Configuration Menu................................................................................................................ 54
Defining the AAA Services {AAA} ................................................................................... 54
Establishing Secure Administration {Access Control}.................................................... 63
Defining Automatic Configuration Settings {Auto Configuration} ................................. 66
Setting Up Bandwidth Management {Bandwidth Management}..................................... 69
Establishing Billing Records “Mirroring” {Bill Record Mirroring}.............................. 70
Managing the dhcp service options {DHCP}.................................................................. 72
Managing the DNS Options {DNS}................................................................................. 76
Managing the Dynamic DNS Options {Dynamic DNS} .................................................. 77
GRE Tunneling {Gre Tunneling}..................................................................................... 78
Setting the Home Page Redirection Options {Home Page Redirect}.............................. 79
Enabling Intelligent Address Translation (iNAT™)........................................................ 80
Defining IPSec Tunnel Settings {IPSec}.......................................................................... 82
Establishing Your Location {Location}........................................................................... 88
Managing the Log Options {Logging}............................................................................. 91
Enabling MAC Authentication {MAC Authentication}.................................................... 96
Assigning Passthrough Addresses (Passthrough Addresses).......................................... 97
Assigning a PMS Service {PMS}..................................................................................... 98
Setting Up Port Locations {Port-Location}................................................................... 104
Setting up Quality of Service {QoS} .............................................................................. 109
Defining the RADIUS Client Settings {RADIUS Client} ............................................... 110
Defining the RADIUS Proxy Settings {RADIUS Proxy}................................................ 114
Defining the Realm-Based Routing Settings {Realm-Based Routing}........................... 118
Managing SMTP Redirection {SMTP}.......................................................................... 127
Managing the SNMP Communities {SNMP}................................................................. 128
Enabling Dynamic Multiple Subnet Support (Subnets)................................................. 129
Displaying Your Configuration Settings {Summary} .................................................... 131
Setting the System Date and Time {Time} ..................................................................... 132
Setting up Traffic Descriptors........................................................................................ 134
Setting Up URL Filtering {URL Filtering}.................................................................... 135
Selecting User Agent Filtering Settings......................................................................... 136
Zone Migration .............................................................................................................. 137
Defining IPSec Tunnel Settings ..................................................................................... 139

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Network Info Menu............................................................................................................... 141
Displaying ARP Table Entries {ARP}............................................................................ 141
Displaying DAT Sessions {DAT} ................................................................................... 141
Displaying the Host Table {Hosts} ................................................................................ 142
Displaying ICMP Statistics {ICMP}.............................................................................. 143
Displaying the Network Interfaces {Interfaces}............................................................. 143
Displaying the IP Statistics {IP} .................................................................................... 145
Viewing IPSec Tunnel Status {IPSec}............................................................................ 145
Displaying the Routing Tables {Routing}...................................................................... 145
Displaying the Active IP Connections {Sockets} ........................................................... 146
Displaying the Static Port Mapping Table {Static Port-Mapping} ............................... 147
Displaying TCP Statistics {TCP}................................................................................... 148
Displaying UDP Statistics {UDP} ................................................................................. 149
Port-Location Menu............................................................................................................... 149
Adding and Updating Port-Location Assignments {Add}.............................................. 150
Deleting All Port-Location Assignments {Delete All} ................................................... 153
Deleting Port-Location Assignments by Location {Delete by Location}....................... 154
Deleting Port-Location Assignments by Port {Delete by Port}..................................... 155
Exporting Port-Location Assignments {Export}............................................................ 155
Finding Port-Location Assignments by Description {Find by Description} ................. 156
Finding Port-Location Assignments by Location {Find by Location}........................... 157
Finding Port-Location Assignments by Port {Find by Port}......................................... 158
Importing Port-Location Assignments {Import}............................................................ 159
Displaying the Port-Location Mappings {List}.............................................................. 161
Subscriber Administration Menu .......................................................................................... 161
Adding Subscriber Profiles {Add}.................................................................................. 161
Displaying Current Subscriber Connections {Current} ................................................ 167
Deleting Subscriber Profiles by MAC Address {Delete by MAC}................................. 168
Deleting Subscriber Profiles by User Name {Delete by User}...................................... 169
Displaying the Currently Allocated DHCP Leases {DHCP Leases}............................. 170
Deleting All Expired Subscriber Profiles {Expired}...................................................... 170
Finding Subscriber Profiles by MAC Address {Find by MAC} ..................................... 171
Finding Subscriber Profiles by User Name {Find by User}.......................................... 171
Listing Subscriber Profiles by MAC Address {List by MAC} ........................................ 172
Listing Subscriber Profiles by User Name {List by User}............................................. 173
Viewing RADIUS Proxy Accounting Logs {RADIUS Session History}......................... 174
Displaying Current Profiles and Connections {Statistics} ............................................ 175
Subscriber Interface Menu .................................................................................................... 175
Defining the Billing Options {Billing Options}.............................................................. 175
Setting Up the Information and Control Console {ICC Setup}...................................... 182
Defining Languages {Language Support} ..................................................................... 189
Enable Serving of Local Web Pages {Local Web Server} ............................................. 191
Defining the Subscriber’s Login UI {Login UI} ............................................................ 193
Defining the Post Session User Interface (Post Session UI).......................................... 197

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Defining Subscriber UI Buttons {Subscriber Buttons}.................................................. 200
Defining Subscriber UI Labels {Subscriber Labels}..................................................... 201
Defining Subscriber Error Messages {Subscriber Errors} ........................................... 203
Defining Subscriber Messages {Subscriber Messages} ................................................ 205
System Menu......................................................................................................................... 208
Adding an ARP Table Entry {ARP Add}........................................................................ 208
Deleting an ARP Table Entry {ARP Delete} ................................................................. 209
Enabling the Bridge Mode Option {Bridge Mode}........................................................ 209
Exporting Configuration Settings to the Archive File {Export}.................................... 210
Importing the Factory Defaults {Factory} .................................................................... 211
Defining the Fail Over Options {Fail Over} ................................................................. 212
Viewing the History Log {History}................................................................................ 213
Establishing ICMP Blocking Parameters {ICMP}........................................................ 214
Importing Configuration Settings from the Archive File {Import}................................ 215
Establishing Login Access Levels {Login} .................................................................... 216
Defining the MAC Filtering Options {Mac Filtering}................................................... 219
Rebooting the System {Reboot} ..................................................................................... 220
Adding a Route {Route Add}.......................................................................................... 221
Deleting a Route {Route Delete} ................................................................................... 222
Establishing Session Rate Limiting {Session Limit}...................................................... 222
Adding Static Ports {Static Port-Mapping Add} ........................................................... 223
Deleting Static Ports {Static Port-Mapping Delete} ..................................................... 225
Blocking a Subscriber Interface {Subscriber Interfaces}.............................................. 226
Updating the Access Gateway Firmware {Upgrade}.................................................... 226
Chapter 4: The Subscriber Interface ......................................................................... 227
Overview............................................................................................................................... 227
Authorization and Billing...................................................................................................... 228
The AAA Structure......................................................................................................... 229
Process Flow (AAA)....................................................................................................... 232
Internal and External Web Servers................................................................................ 233
Language Support.......................................................................................................... 233
Home Page Redirection................................................................................................. 233
Subscriber Management........................................................................................................ 234
Subscriber Management Models ................................................................................... 234
Configuring the Subscriber Management Models......................................................... 235
Information and Control Console (ICC)............................................................................... 236
ICC Pop-Up Window..................................................................................................... 236
Logout Console.............................................................................................................. 237
Chapter 5: Quick Reference Guide............................................................................ 239
Web Management Interface (WMI) Menus.......................................................................... 239
Configuration Menu Items............................................................................................. 240

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Network Info Menu Items............................................................................................... 242
Port-Location Menu Items ............................................................................................. 242
Subscriber Administration Menu Items.......................................................................... 244
Subscriber Interface Menu Items ................................................................................... 244
System Menu Items......................................................................................................... 245
Alphabetical Listing of Menu Items (WMI) ......................................................................... 248
Default (Factory) Configuration Settings.............................................................................. 250
Product Specifications........................................................................................................... 252
Sample AAA Log.................................................................................................................. 263
Message Definitions (AAA Log)..................................................................................... 263
Sample SYSLOG Report....................................................................................................... 264
Sample History Log............................................................................................................... 265
Keyboard Shortcuts............................................................................................................... 266
HyperTerminal Settings......................................................................................................... 266
RADIUS Attributes............................................................................................................... 267
Authentication-Request .................................................................................................. 268
Authentication-Reply (Accept) ....................................................................................... 268
Accounting-Request........................................................................................................ 269
Selected Detailed Descriptions ...................................................................................... 270
Nomadix Vendor Specific Attributes .............................................................................. 271
Setting Up the SSL Feature................................................................................................... 273
Prerequisites................................................................................................................... 273
Obtain a Private Key File (cakey.pem).......................................................................... 273
Installing Cygwin and OpenSSL on a PC ...................................................................... 274
Private Key Generation.................................................................................................. 277
Create a Certificate Signing Request (CSR) File........................................................... 280
Create a Public Key File (server.pem)........................................................................... 281
Setting Up Access Gateway for SSL Secure Login......................................................... 284
Setting Up the Portal Page............................................................................................. 285
Mirroring Billing Records..................................................................................................... 286
Sending Billing Records................................................................................................. 286
XML Interface ................................................................................................................ 287
Chapter 6: Troubleshooting ........................................................................................ 291
General Hints and Tips.......................................................................................................... 291
Management Interface Error Messages................................................................................. 292
Common Problems................................................................................................................ 294
Appendix A: Technical Support 297
Contact Information............................................................................................................... 297
Glossary of Terms .........................................................................................................299
Index ..............................................................................................................................313

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Introduction 1
Introduction
About this Guide
This User Guide provides information and procedures that will enable system administrators to
install, configure, manage, and use the Access Gateway product successfully and efficiently.
Use this guide to take full advantage of the Access Gateway’s functionality and features.
Refer to “Product Specifications” on page 252 for a list of Access Gateway Products that this
document supports.
Organization
This User Guide is organized into the following sections:
Chapter 1 – Installing the Access Gateway. This section provides instructions for installing
the Access Gateway and establishing the start-up configuration.
Chapter 2 – System Administration. This section provides all the instructions and procedures
necessary to manage and administer the Access Gateway on the customer’s network, following
a successful installation.
Chapter 3 – The Subscriber Interface. This section provides an overview and sample scenario
for the Access Gateway’s subscriber interface. It also includes an outline of the authorization
and billing processes utilized by the system, and the Nomadix Information and Control
Console.
Chapter 4 – Quick Reference Guide. This section contains product reference information,
organized by topic and functionality. It also contains a full listing of all product configuration
elements, sorted alphabetically and by menu.
Chapter 5 – Troubleshooting. This section provides information to help you resolve common
hardware and software problems. It also contains a list of error messages associated with the
management interface.
Appendix A: Technical Support. The appendix informs you how to obtain technical support.
Refer to Troubleshooting before contacting Nomadix, Inc. directly.
Glossary of Terms. The glossary provides an explanation of terms directly related to Nomadix
product technology. Glossary entries are organized alphabetically.
Index. The index is a valuable information search tool. Use the index to locate specific topics
and categories contained in this User Guide.

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2Introduction
Welcome to the Access Gateway
The Access Gateway is a freestanding, fully featured network appliance that enables public
access service providers to offer broadband Internet connectivity to their customers.
The Access Gateway handles transparent connectivity, advanced security, policy-based traffic
shaping, and service placement supporting thousands of users simultaneously in a broadband
environment. The Access Gateway also offers a unique set of security and connectivity features
for deploying metro wireless 802.11 networks, including Mesh and WiMAX technologies.
The Access Gateway yields a complete solution to a set of complex issues in the Enterprise,
Public-LAN, and Residential segments.
Product Configuration and Licensing
All Nomadix Access Gateway products are powered by our patented and patent-pending suite
of embedded software, called the Nomadix Service Engine™ (NSE). The Access Gateway
employs our NSE core software package and comes pre-packaged with the option to purchase
additional modules to expand the product’s functionality.
This User Guide covers all features and functionality provided with the NSE core package, as
well as additional optional modules. Your product license must support the optional NSE
modules if you want to take advantage of the expanded functionality. The following note will
preface procedures that directly relate to optional modules.
See also:
“NSE Core Functionality” on page 6
“Optional NSE Modules” on page 20
Key Features and Benefits
The Access Gateway is a 1U high, free-standing or rack-mountable Access Gateway that
employs three fast Ethernet ports to interface with the router (one for network side) and the
Access Gateway

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Introduction 3
aggregation equipment (two for subscriber side) within the network. It also incorporates an
RS232 serial port for connecting to a Property Management System (PMS) and for system
management and administration, while maintaining one billing relationship with their chosen
provider.
The Access Gateway enables a wide variety of network deployment options for different venue
types. For example:
Allows for flexible WAN Connectivity (T1/E1, Cable, xDSL, and ISDN).
Supports 802.11a/b/g and hybrid networks utilizing wired Ethernet.
Supports key requirements needed to be compliant with the Wi-Fi ZONE™ program.
Allows you to segment your existing network into public and private sections using
VLANs, then leverage your existing network investment to create new revenue
streams.
Enables you to provide Wi-Fi access as a billable service or as an amenity to augment
the main line of business for your venue.
Contains an advanced XML interface for accepting and processing XML commands,
allowing the implementation of a variety of service plans and offerings.
Offers three user-friendly ways of remote management—through a Web interface,
SNMP MIBs, and Telnet interfaces—allowing for scalable, large public access
deployments.
Platform Reliability
The Access Gateway is designed as a network appliance, providing maximum uptime and
reliability unlike competitive offerings that use a server-based platform.
Local Content and Services
The Access Gateway’s Portal Page feature intercepts the user’s browser settings and directs
them to a designated Web site to securely sign up for service or log in if they have a pre-
existing account.
Allows the provider to present their customers with local services or have the user
sign up for service at zero expense.
Offers both pre and post authentication redirects of the user’s browser, providing
maximum flexibility in service branding.

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4Introduction
Transparent Connectivity
Resolving configuration conflicts is difficult and time consuming for network users who are
constantly on the move, and costly to the solution provider. In fact, most users are reluctant to
make changes to their computer’s network settings and won’t even bother. This fact alone has
prevented the widespread deployment of broadband network services.
Our patented Dynamic Address Translation™ (DAT) functionality offers a true “plug and
play” solution by enabling a seamless and transparent experience and the tools to acquire new
customers on-site.
DAT greatly reduces provisioning and technical support costs and enables providers to deliver
an easy to use, customer-friendly service.
Billing Enablement
The Access Gateway supports billing plans using credit cards, scratch cards, or monthly
subscriptions, or direct billing to a hotel’s Property Management System (PMS) and can base

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Introduction 5
the billable event on a number of different parameters such as time, volume, IP address type, or
bandwidth.
Access Control and Authentication
The Access Gateway ensures that all traffic to the Internet is blocked until authentication has
been completed, creating an additional level of security in the network. Also, the Access
Gateway allows service providers to create their own unique “walled garden,” enabling users
to access only certain predetermined Web sites before they have been authenticated.
Nomadix simultaneously supports the secure browser-based Universal Access Method
(UAM), IEEE 802.1x, and Smart Clients for companies such as Adjungo Networks, Boingo
Wireless, GRIC and iPass. MAC-based authentication is also available.
Security
The patented iNAT™ (Intelligent Network Address Translation) feature creates an intelligent
mapping of IP Addresses and their associated VPN tunnels—by far the most reliable multi-
session VPN passthrough to be tested against diverse VPN termination servers from
companies such as Cisco, Checkpoint, Nortel and Microsoft. Nomadix’ iNAT feature allows
multiple tunnels to be established to the same VPN server, creating a seamless connection for
all users on the network.
The Access Gateway provides fine-grain management of DoS (Denial of Service) attacks
through its Session Rate Limiting (SRL) feature, and MAC filtering for improved network
reliability.
5-Step Service Branding
A network enabled with the Nomadix Access Gateway offers a 5-Step service branding
methodology for service providers and their partners, comprising:
1. Initial Flash Page branding.
2. Initial Portal Page Redirect (Pre-Authentication). Typically, this is used to redirect the user
to a venue-specific Welcome and Login page.
3. Home Page Redirect (Post-Authentication). This redirect page can be tailored to the
individual user (as part of the RADIUS Reply message, the URL is received by the NSE)
or set to re-display itself at freely configurable intervals.
4. The Information and Control Console (ICC) contains multiple opportunities for an
operator to display its branding or the branding of partners during the user’s session. As an
alternative to the ICC, a simple pop-up window provides the opportunity to display a
single logo.

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6Introduction
5. The “Goodbye” page is a post-session page that can be defined either as a RADIUS VSA
or be driven by the Internal Web Server (IWS) in the NSE. Using the IWS option means
that this functionality is also available for other post-paid billing mechanisms (for
example, post-paid PMS).
NSE Core Functionality
Powering Nomadix’ family of Access Gateways, the Nomadix Service Engine (NSE) delivers
a full range of features needed to successfully deploy public access networks. These “core”
features solve issues of connectivity, security, billing, and roaming in a Wi-Fi public access
network.
The NSE’s core package of features includes:
Access Control
Bandwidth Management
Billing Records Mirroring
Bridge Mode
Command Line Interface
Credit Card
Dynamic Address Translation™
Dynamic Transparent Proxy
End User Licensee Count
External Web Server Mode
Home Page Redirect
iNAT™
Information and Control Console
Internal Web Server
International Language Support
IP Upsell
Logout Pop-Up Window
MAC Filtering
Multi-Level Administration Support
NTP Support

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Introduction 7
Portal Page Redirect
RADIUS Client
RADIUS-driven Auto Configuration
RADIUS Proxy
Realm-Based Routing
Remember Me and RADIUS Re-Authentication
Secure Management
Secure Socket Layer (SSL)
Secure XML API
Session Rate Limiting (SRL)
Session Termination Redirect
Smart Client Support
SNMP Nomadix Private MIB
Static Port Mapping
Tri-Mode Authentication
URL Filtering
Walled Garden
Web Management Interface
Access Control
For IP-based access control, the NSE incorporates a master access control list that checks the
source (IP address) of administrator logins. A login is permitted only if a match is made with
the master list contained within the NSE. If a match is not made, the login is denied, even if a
correct login name and password are supplied.
The access control list supports up to 50 (fifty) entries in the form of a specific IP address or
range of IP addresses.
The NSE also offers access control based on the interface being used. This feature allows
administrators to block access from Telnet, Web Management, and FTP sources.
Administration can now be performed after unblocking the interfaces for the Subscriber side of
the NSE. The Administrative ports are configurable as well. See “Establishing Secure
Administration {Access Control}” on page 63.

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8Introduction
Bandwidth Management
The NSE optimizes bandwidth by limiting bandwidth usage symmetrically or asymmetrically
on a per device (MAC address / User) basis, and manages the WAN Link traffic to provide
complete bandwidth management over the entire network. You can ensure that every user has a
quality experience by placing a bandwidth ceiling on each device accessing the network, so
every user gets a fair share of the available bandwidth.
With the Nomadix ICC feature enabled, subscribers can increase or decrease their own
bandwidth and pricing plans for their service dynamically.
Billing Records Mirroring
NSE-powered devices can send copies of credit card billing records (and optionally, PMS) to
external servers that have been previously defined by system administrators. The NSE assumes
control of billing transmissions and the saving of billing records. By effectively “mirroring”
the billing data, the NSE can send copies of billing records to predefined “carbon copy”
servers. Additionally, if the primary and secondary servers are not responding, the NSE can
store up to 2,000 billing records. The NSE regularly attempts to connect with the primary and
secondary severs. When a connection is re-established (with either server), the NSE sends the
cached information to the server. Customers can be confident that their billing information is
secure and that no transaction records are lost.
Bridge Mode
This feature allows complete and unconditional access to devices. When Bridge Mode is
enabled, your NSE-powered product is effectively transparent to the network in which it is
located.
Information and Control Console (ICC)
Bandwidth selection (pull down)