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Technical Overview July, 2004 Technical Overview July, 2004

Access Gateways AG-2000 w – Integrated Wi-Fi Hot. Spot Connectivity Device for Single Cell Access Gateways AG-2000 w – Integrated Wi-Fi Hot. Spot Connectivity Device for Single Cell Venue Deployments – NSE Features With High Performance IEEE 802. 11 b/g Radio – Supports up to 50 Simultaneous Users Hot. Spot Gateway (HSG) – Cost Effective, Reliable Networking Device for Small Venue Deployments – Transport Agnostic, Capable of Supporting Either Wired or Wireless Networks – Supporting up to 150 Simultaneous Users (sold in 50 user increments) Universal Subscriber Gateway II (USG II) – High Performance Networking Device for Large Venue Deployments – Transport Agnostic, Capable of Supporting Either Wired or Wireless Networks – Supporting up to 2, 000 Simultaneous Users (sold in 250 user increments)

AG-2000 w-Hot. Spot in a Box • AG-2000 w– 1 x WAN link – AG-2000 w-Hot. Spot in a Box • AG-2000 w– 1 x WAN link – 1 x Wireless Subscriber port – IEEE 802. 11 b/g subscriber side – Factory default: • • 50 users Internal Database Radius Power over Ethernet (WAN port) – Upgrade with Credit Card Module – Upgrade with Roaming Module

Hot. Spot Gateway • Hot. Spot Access Gateway – 1 x WAN link – Hot. Spot Gateway • Hot. Spot Access Gateway – 1 x WAN link – 2 x Subscriber ports – Factory default: • 50 users • Internal Database • Radius – Upgrade to max. 150 users in steps of 50 users – Upgrade with Hospitality Module – Upgrade with Credit Card Module – Upgrade with Fail-Over Module – Upgrade with Roaming Module

Universal Subscriber Gateway II • Universal Subscriber Gateway – 1 x WAN link – Universal Subscriber Gateway II • Universal Subscriber Gateway – 1 x WAN link – 2 x Subscriber ports – Factory default: • 250 users • Internal Database • Radius – Upgrade to max. 2, 000 users in steps of 250 users – Upgrade with Hospitality Module – Upgrade with Credit Card Module – Upgrade with Fail-Over Module

Nomadix Service Engine Core Solution Element Features Benefits Customer Acquisition - Dynamic Address Translation™ Nomadix Service Engine Core Solution Element Features Benefits Customer Acquisition - Dynamic Address Translation™ - Transparent proxy - Any user gets access - Reduces technical support and provisioning costs Service Provisioning - Home Page Redirection - Walled Garden - Delivers local content/services - Maximum branding capability for provider and venue - Secure account creation and login Access Control & Authentication - Universal Access Method (UAM) - Simultaneous support for UAM, and 802. 1 x, Smart Clients - Prevents unauthorized network access - Enable multiple authentication models - Maximum flexibility for the user and operator - Multiple billing options Billing Plan Enablement - Multimode Billing Model Support - Multiple Billing Parameters - Bill Mirroring - Deploy a wide variety of billing models - Supports the largest variety of Property Mgmt Systems - Bill by volume, time, bandwidth level Advanced Security - i. NAT ™ - Supports multiple simultaneous VPNs to the same server Global Roaming - WISPr Support - Allows users to roam between networks while maintaining one billing relationship w/ their provider Traffic Shaping & Service Presentment - Bandwidth Management - Information and Control Console - Management of limited bandwidth ensuring a quality experience for all users - User based self-selection of services, increased trial of new service

NSE Modules • Hospitality – Wide range of Property Management System (PMS) interfaces to NSE Modules • Hospitality – Wide range of Property Management System (PMS) interfaces to enable in-room guest billing for high speed Internet access (HSIA) – Includes 2 -way PMS for in-room billing in a Wi-Fi enabled network – Bill Mirror functionality posts billing records to multiple sources – Supports billing over TCP/IP connection to select PMS interfaces

NSE Modules • Credit Card – Offers secure interface over SSL to enable billing NSE Modules • Credit Card – Offers secure interface over SSL to enable billing by credit card – Bill Mirror functionality allows posting of bill to multiple sources – Supports scratch card and promotional codes

NSE Modules • Wholesale Roaming – Provides advanced Network Access Identifier (NAI) routing capabilities NSE Modules • Wholesale Roaming – Provides advanced Network Access Identifier (NAI) routing capabilities allowing multiple providers to access a Hot. Spot location supporting a Wi-Fi Wholesale model

NSE Modules • High-Availability – This module offers expanded network uptime and service availability NSE Modules • High-Availability – This module offers expanded network uptime and service availability when delivering highquality Wi-Fi service – To ensure uninterrupted service, our Fail. Over functionality allows a secondary Nomadix Access Gateway to be placed in the network which will take over if the primary device should fail

Service Connectivity Auto-configuration Mary’s Computer Web proxy: None John’s Computer Web proxy: 130. 92. Service Connectivity Auto-configuration Mary’s Computer Web proxy: None John’s Computer Web proxy: 130. 92. 75. 150 Sam’s Computer Web proxy: 10. 1. 1. 14 Any computer (DHCP or static IP) can access the service network, regardless of its IP and browser proxy settings.

Plug & Play Features & Benefits § No client side software • Plug & Plug & Play Features & Benefits § No client side software • Plug & Play: The USG automatically adapts to § No reconfiguration, truck rolls, or tech support calls the network settings of § Transparent HTTP Proxy support (subscriber does not need any computer to disable their proxies). § DNS (Domain Name Server) Redirection (Subscriber’s DNS request are redirected to a local server). § SMTP server redirection support (subscriber’s outgoing email will be redirected to a local server). § Automatic User Tracking, Billing, and Security. Ø Automatically logs the subscribers network settings so there is no need for additional logins. Ø Automatically bills for the service (PMS, Credit card, RADIUS). Ø Provides security by separating subscriber’s traffic from the remote network management traffic.

Dynamic Transparent Proxy • • This release now supports clients that dynamically change their Dynamic Transparent Proxy • • This release now supports clients that dynamically change their browser’s proxy status from non-proxy to proxy and/or change their proxy IP address/port number during the session. Non-proxy Also, transparent proxy support has been enhanced by offering support for additional assigned port ranges (e. g. port 911). Proxy

DHCP Server functionality • IP Upsell allows for the service provider to offer the DHCP Server functionality • IP Upsell allows for the service provider to offer the subscriber the option to take a private DHCP lease or a public IP lease. • Multiple DHCP subnet support. Allows a service provider to assign public or private IP lease to subscribers by port location • DHCP Relay. Allows a service provider to use an external DHCP server to many the lease pool.

Nomadix i. NAT Support • Guarantees transparent VPN connectivity from private IP address subnets; Nomadix i. NAT Support • Guarantees transparent VPN connectivity from private IP address subnets; • Supports users with static private (e. g. 192. 168. x. x) IP addresses without any client IP setting changes; • Dynamically adjusts the mode of address translation during the user’s session depending on the packet type; • Dramatically heightens the reusability factor of costly public IP addresses; • Maintains the security benefits of traditional address-translation technologies

Security – i. NAT UDP packet fragmentation support • • Nomadix invented a new Security – i. NAT UDP packet fragmentation support • • Nomadix invented a new way of intelligently supporting multiple VPN connections to the same termination server at the same time (i. NAT), thus solving a key problem of many public access networks. This release of the NSE adds UDP packet fragmentation support to Nomadix’ patent-pending i. NAT functionality to provide more seamless support for certificate-based IPSec VPN connections. Sample Network Internet IPSec client using Certificate Subscribers-side packet capture Network-side packet capture

Internal Web Server (IWS) • Internal Web Server o Allows for a quick and Internal Web Server (IWS) • Internal Web Server o Allows for a quick and easy setup for authenticating new subscribers. o Configurable for: § Username/Password authentication (optional). § PMS, Credit Card or free access billing. § Color for Background, Foreground and Fonts. § Service Selection, Existing Username, New Username and Contact Info Messages. § You can change the font type and add a logo image. Login or New Account Service Selection Verify and Purchase

Local Webserver • • • Upload the required pages and images to the /flash/web Local Webserver • • • Upload the required pages and images to the /flash/web directory using FTP. Total file size of all pages and images cannot exceed 200 KB. File names should be labeled using the 8. 3 format. Pages can now be served by referencing the URL http: //nseip: 1111/web/ or at https: //nseip: 1112/web/ for pre-authenticated end users. The post-authentication pages and images are available at http: //nseip: 3111/web/

Local Webserver Local Webserver

IWS Portal Page/External Web Server Subscriber provisioning § Walled Garden (service upsell) § Central IWS Portal Page/External Web Server Subscriber provisioning § Walled Garden (service upsell) § Central Management of Subscribers § Web Based Provisioning § Custom Subscriber Experience (Target Your Market) Through XML (e. Xtensible Markup Language), the USG can interact with a highly customized and feature-rich web server anywhere on the Internet. Example: http: //[Your Server IP Address]/[Your Scripts]? UI=000177&UURL=http: //208. 46. 165. 157&MA=0050 da 554787&RN=101&OS=http: //204. 71. 200. 74&SC=6302 EWS Sends (via HTTP “Post” Method to http: //[USG_IP_Address]: 1111/usg/command. xml): Example: § Benefits include: Web page portal exposure. johndoe doededoe 3600 101 PMS 4. 95 Hotel Central management of multiple sites. MDU Airport Lounges Ability to target markets by location and the local port.

Security – Secure XML • This feature allows the Operator to use Nomadix’ popular Security – Secure XML • This feature allows the Operator to use Nomadix’ popular XML API using the built-in SSL certificate functionality in the NSE so parameters passed between the Gateway and the centralized web server are secured via SSL. • This feature is automatically enabled when the SSL certificate is loaded. Unique Nomadix functionality

RADIUS Support § Enables an ISP to use an existing RADIUS server to authenticate RADIUS Support § Enables an ISP to use an existing RADIUS server to authenticate subscribers through the Nomadix USGTM. § The USGTM supports following RADIUS attributes: § Timestamp § Acct-Output-Octets § User-Name § Acct-Input-Octets § NAS-IP-Address § Acct-Session-Time § NAS-Port-Id § Acct-Idle-Timeout § NAS-Port-Type § Acct-Terminate-Cause § NAS-Identifier § Acct-Delay-Time § Acct-Status-Type § Framed-IP-Address Also known as Record§ Request-Authenticator Type (Start/Stop/Alive) § Nomadix-Bw-Up = USG will receive and send this information. § Nomadix-Bw-Down = USG will receive and send this information. § Nomadix-Url-Redirection = USG will receive this not give it § Nomadix-Ip-Upsell = USG will receive this not give it. This is used for giving a subscriber a public IP address on the same network as the USG. Central management of multiple sites. Automatic Account Creation: New subscribers can create an acct instantly. Profile Groups: A service provider can create service attributes for a "gold", "silver", or "bronze" service. § Acct-Session-Id RADIUS Roaming SDU MTU Airport Lounges

Enhanced Roaming – RADIUS Proxy • The purpose of the RADIUS Proxy functionality in Enhanced Roaming – RADIUS Proxy • The purpose of the RADIUS Proxy functionality in the NSE is to relay authentication and accounting packets between the parties performing the authentication process. • Different realms can be set up to directly channel RADIUS messages to the various RADIUS servers. • This functionality can be effectively deployed to: – support a wholesale WISP model directly from the edge without the need for any centralized AAA proxy infrastructure – support EAP authenticators (e. g. WLAN AP) on the subscriber side of the NSE to transparently proxy all EAP types (e. g. TLS, SIM) and to allow for the distribution of persession keys to EAP authenticators and supplicants. Step 1: Enable proxy server and define port numbers Step 2: Define NAS IDs per RADIUS service profile (realm)

Enhanced Roaming – NAI Routing • Complements the RADIUS Proxy functionality in the NSE Enhanced Roaming – NAI Routing • Complements the RADIUS Proxy functionality in the NSE to route RADIUS messages depending on the Network Access Identifier (NAI). • Both prefix (ISP/[email protected] net) and suffix-based ([email protected] net) NAI routing mechanisms are supported. • Up to 50 policies can be defined. Together, the RADIUS Proxy and NAI Routing further support the deployment of the Wholesale Wi-Fi model allowing multiple providers to service one location.

Whole. Sale Model • Only one L 2 TP tunnel needed per ISP. Per Whole. Sale Model • Only one L 2 TP tunnel needed per ISP. Per User PPP session going through L 2 TP tunnels to respective ISPs. • PPP Sessions initiated on User Login via Gateways portal/Login page. • Tunneling based on “Realm” ( prefix or suffix ) specified in the username. • Tunnel parameters retrieved via either RADIUS request or pre-configured in HSG. • PPP authenticates and specifies IP address for the user. • i. NAT translates each subscriber’s private address to one provided by own ISP

Multiple ISP Tunnel Support ISP 1 RADIUS ISP 1 SUBSCRIBER joe@isp 1. com L Multiple ISP Tunnel Support ISP 1 RADIUS ISP 1 SUBSCRIBER [email protected] 1. com L 2 TP Gateway Tunnel endpoint Tunneled Broadband Access WAN ISP 2 RADIUS PPPo. A ISP 2 SUBSCRIBER [email protected] 2. com Hot. Spot Gateway (HSG) LNS - L 2 TP Gateway: Tunnel endpoint Planet SUBSCRIBER [email protected] 2. com ISP 2 SUBSCRIBER [email protected] 2. com ISP 2 Internet ADSL/ATM RADIUS tunneled connection for all ISP 1 users tunneled connection for all ISP 2 users User name authentication Tunnel authentication based on realm

PMS Integration § Adds seamless billing to the Hotel’s PMS (Property Management System). § PMS Integration § Adds seamless billing to the Hotel’s PMS (Property Management System). § Supported PMS protocols include: LMS Ramesys Imag. Inn PMS Micros Fidelio Virtual XL Call Accounting System (XETA Communications) Micros ( 1700/2000/3700/4700/8700 System Software ) System 21 Lodging Link (PTI) HOBIC – RS 1 Holidex (Auto. Clerk) HOBIC – TSPS Hilton 1 HOBIC – TEST Hilton 2 HOBIC – 1 BT 2 Marriott proprietary PMS HOBIC – OSPS ASCII Serial Printer

Billing – Duration-based billing • • Create billing plans that work in a similar Billing – Duration-based billing • • Create billing plans that work in a similar fashion to pre-paid telephone cards. With this functionality, the Internal Web Server (IWS) of the NSE allows the definition of billing plans for time ‘x’ over period ‘y’. Standard billing plans (time x = period y) can be used concurrently. For example, multiple plans with flexible billing event options can be enabled such as: – Plan A: 24 hours, 256 kbit/s downstream, 128 kbit/s upstream, public IP address, $15 – Plan B: 8 hours to be used over 5 days, 512 kbit/s downstream, 256 kbit/s upstream, private IP address, $35 – Plan C: 1 week, 1 mbit/s downstream, 1 mbit/s upstream, public IP address, $99 • In addition to credit card billing, Property Management Systems used by hotels are also supported along with the internal data base of the NSE and billing via Nomadix’ secure XML API. Unique Nomadix functionality

Hospitality – Post-paid PMS • Nomadix first implemented post-paid PMS billing logic to support Hospitality – Post-paid PMS • Nomadix first implemented post-paid PMS billing logic to support the proprietary NH PMS interface. Now, this billing logic has been extended to support all existing PMS interfaces (e. g. all five HOBIC versions, Marriott, Micros Fidelio, etc. ). • With the new functionality, the hotel guest now has the option to terminate his connection (via the ICC) and be only billed for the actual time he/she was online. • Nomadix therefore offers the widest support for guest room billing methods including both pre-paid (i. e. pay-TV type charges) and post-paid (i. e. telephone type charges) methods. Unique Nomadix functionality

Port Mapping • SNMP query for: § Lucent DSL Terminator § Tut Systems § Port Mapping • SNMP query for: § Lucent DSL Terminator § Tut Systems § Tut MDU Lite Systems Ø RFC 1493 Compliant Systems (RC Networks, 3 Com, etc…) § Allows for identifying the physical location of the subscriber (essential for PMS post billing). • VLAN Tagging with the 802. 1 Q standard § Allows for identifying the physical location of the subscriber (essential for PMS post billing).

Pass-Through Addresses Example of Service Provider’s portal page. 1) 2) 3) Subscribers can get Pass-Through Addresses Example of Service Provider’s portal page. 1) 2) 3) Subscribers can get to local content without having to purchase access. Service Provider gets an increase in take rate by giving free access to selected partners. Server Provider gets additional revenues from subscribers for referrals even though the subscriber has not yet purchased Internet Access.

Pass-Through Addresses Example of Service Provider’s portal page. If the subscriber tries to go Pass-Through Addresses Example of Service Provider’s portal page. If the subscriber tries to go to any web site that is not listed as a passthrough site, they will be redirected to the Service Provider’s Portal Page.

Information Control Console (ICC) • Pop-up Information Connection Console § The ICC is a Information Control Console (ICC) • Pop-up Information Connection Console § The ICC is a pop-up control panel that can be used by the service provider for generating revenues. § The ICC will pop up when the subscriber accesses the Internet for the first time after authentication. § Features of the ICC are: Redirect Banner: 5 banner images or text messages. Display time is set in seconds. Also 4 banners can be set to activate at a specific time. Service Selection dropdown menu: Subscriber can upgrade their service level for large downloads. Service Change Confirmation window Easy to read, time display window Example Redirect Buttons: 8 buttons for redirecting to any URL you specify. Redirect button (big): 1 large button for redirecting to any URL you specify. Logout button when RADIUS is used Logout confirmation window Time Remaining Display

Enhanced Roaming – Intra-session service branding Pop Up Log-Out Button • • The NSE Enhanced Roaming – Intra-session service branding Pop Up Log-Out Button • • The NSE now lets the administrator define a simple HTML-based pop-up window for explicit logout that can be used as an alternative to the more fully featured ICC. The Pop Up Log-Out button contains the opportunity to display the elapsed/countdown time and one logo for intra-session service branding. HTML-based ICC • The existing JAVA-based ICC has been replaced with an HTML/Javascript version to enhance its performance and reduce browser compatibility issues while also allowing its distribution from a centralized location/server.

Enhanced Roaming – End-to-end Service Branding The Nomadix 5 -Step Service Branding Methodology 1 Enhanced Roaming – End-to-end Service Branding The Nomadix 5 -Step Service Branding Methodology 1 2 Flash Branding 3 Welcome, Service Acquisition & Login 4 Personalized content AAA status Pending Valid 5 Intra-session branding with definable persistence Post-session ‘Thank you and Good-bye’ Valid Pending (ICC or Logout button) (IWS Goodbye Page or RADIUS VSA) Nomadix functionality (Splash Page) (Portal Page & Parameter Passing) (Home Page & RADIUS VSA) Unique Nomadix functionality

Enhanced Roaming – Service Branding at session termination As part of the FIVE step Enhanced Roaming – Service Branding at session termination As part of the FIVE step Service Branding Methodology introduced by Nomadix, a Session Termination page option is now available in this release. – The Session Termination page is a post session page that can either be defined as a RADIUS VSA or be driven by the internal web server in the NSE. Using the Internal Web Server option means that this functionality is available for all post-paid billing mechanisms (e. g. postpaid PMS). The IWS page displays the details of the user’s connection such as: • IP address of the user • Type of AAA • Start/Stop time • Bytes sent/received • Freely configurable Hypertext link (in case the ISP wants to link the user back to a sign-up/help page) IWS: Post Session Page RADIUS VSA: Good-bye URL

Security – Session Rate Limiting & MAC filtering • Session Rate Limiting (SRL) – Security – Session Rate Limiting & MAC filtering • Session Rate Limiting (SRL) – Reduces the risks of Denial of Service attacks by allowing administrators to throttle the number of DATTM sessions anyone user can take over a given time period. • MAC Filtering – Once identified, MAC filtering can be used to permanently block a malicious user. Unique Nomadix functionality

Management Direct and Remote Features • Command Line Interface (CLI). § A terminal session Management Direct and Remote Features • Command Line Interface (CLI). § A terminal session directly connected via a serial cable. • Telnet session. § Similar to CLI but remotely done. • Web Management. § Remotely through any Web Browser. • FTP (File Transfer Protocol). § For managing files in the flash of the Nomadix USGTM. • SNMP (Simple Network Management Protocol). § Using standerd networking tools. • SSH ( Secure Shell ) – SFTP ( Secure FTP )

Network Management – Static Port Mapping • This feature allows the network administrator to Network Management – Static Port Mapping • This feature allows the network administrator to setup a port mapping scheme that forwards packets received on a specific port to a particular static IP (typically private and mis-configured) and port number on the subscriber side of the NSE. • The advantage for the network administrator is that free private IP addresses can be used to manage devices (such as Access Points) on the subscriber side of the NSE without setting them up with Public IP addresses. • Several competitive solutions require costly one-to-one NAT for private side device management.

IPSEC Tunnel • capability to initiate an IPSec tunnel to pass management and RADIUS IPSEC Tunnel • capability to initiate an IPSec tunnel to pass management and RADIUS traffic securely to an IPSec termination server. • Typical management traffic includes – ICMP – PING from NOC to edge devices – Telnet from NOC to edge devices – Web Management – HTTP access from NOC to edge devices – SNMP GET from NOC to subscriber-side device (e. g. AP) – SNMP SET from NOC to subscriber-side device (e. g. AP) – SNMP Trap from subscriber-side device (e. g. AP) to NOC

IPSEC Tunnel IPSEC Tunnel

GRE tunneling In order to enable a centralized deployment scenario the NSE now has GRE tunneling In order to enable a centralized deployment scenario the NSE now has the ability to form a GRE tunnel to a termination server and route all subscriber traffic through it. This can be used effectively in a centralized solution with a centralized IP allocation scheme. The AG essentially acts as a bridge in this mode.

GRE tunneling GRE tunneling

GRE tunneling GRE tunneling

High Availability – Fail-over • Many large scale highly prominent networks (e. g. tradeshows, High Availability – Fail-over • Many large scale highly prominent networks (e. g. tradeshows, convention centers, etc. ) require Fail-over support for all devices in the Public-access network. • This release of the NSE allows two Nomadix Gateways to act as siblings, where one device will take up the users should the other device become disconnected from the network. • As part of this functionality, the settings (except IP settings) between the two devices will be synchronized automatically.

AG 2000 Multiple SSID • • Up to 16 SSID per Gateway Only 1 AG 2000 Multiple SSID • • Up to 16 SSID per Gateway Only 1 will be broadcasted. Optional VLAN tagging per SSID portal parameter for specific portal per SSID.

AG 2000 Multiple SSID AG 2000 Multiple SSID

Airport Application Ethernet Airport Implementation Airport Cologne, Bonn, Germany Oslo Airport, Norway (Data Equipment) Airport Application Ethernet Airport Implementation Airport Cologne, Bonn, Germany Oslo Airport, Norway (Data Equipment) Schiphol Airport, The Netherlands

Hotel Application Hotel Application