Nomadix Access Gateway, User Manual

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Introduction 15
External Web Server Mode
The External Web Server (EWS) interface is for customers who want to develop and use their
own content. It allows you to create a “richer” environment than is possible with your
product’s embedded Internal Web Server.
The advantages of using an External Web Server are:

Manage frequently changing content from one location.

Serve different pages depending on site, sub-location (for example, VLAN), and user.

Take advantage of the comprehensive Nomadix XML API to implement more
complex billing plans.

Recycle existing Web page content for the centrally hosted portal page.
If you choose to use the EWS interface, Nomadix Technical Support can provide you with
sample scripts. See also,
“Contact Information” on page 365 .
Home Page Redirect
The NSE supports a comprehensive HTTP redirect logic that allows network administrators to
define multiple instances to intercept the browser’s request and replace it with freely
configurable URLs.
Portal page redirect enables redirection to a portal page before the authentication process. This
means that anyone will get redirected to a Web page to establish an account, select a service
plan, and pay for access. Home Page redirect enables redirection to a page
after the
authentication process (for example, to welcome a specific user to the service—after the user
has been identified by the authentication process. See also,
“Portal Page Redirect” on page 19 .
iNAT™
Nomadix invented a new way of intelligently supporting multiple VPN connections to the
same termination at the same time (iNAT™), thus solving a key problem of many public
access networks.
Nomadix’ patented iNAT™ (intelligent Network Address Translation) feature contains an
advanced, real-time translation engine that analyzes all data packets being communicated
between the private address realm and the public address realm.
The NSE performs a defined mode of network address translation based on packet type and
protocol (for example, ISAKMP, etc.). UDP packet fragmentation is supported to provide more
seamless translation engine for certificate-based VPN connections.
If address translation is needed to ensure the success of a specific application (for example,
multiple users trying to access the same VPN termination server at the same time), the packet