ACCESS GATEWAY
Introduction 25
Session Rate Limiting (SRL)
Session Rate Limiting (SRL) significantly reduces the risk of “Denial of Service” attacks by
allowing administrators to limit the number sessions any one user can take over a given time
period and, if necessary, then block malicious users.
Session Termination Redirect
Once connected to the public access network, the NSE will automatically redirect the customer
to a Web site for local or personalized services if the customer logs out or the customer’s
account expires while online and the goodbye page is enabled. In addition, the NSE also
provides pre- and post-authentication redirects as well as one at session termination.
Smart Client Support
The NSE supports authentication mechanisms used by Smart Clients by companies such as
Adjungo Networks, Boingo Wireless, GRIC and iPass.
SNMP Nomadix Private MIB
Nomadix’ Access Gateways can be easily managed over the Internet with an SNMP client
manager (for example, HP OpenView or Castle Rock). See Using an SNMP Manager.
To take advantage of the functionality provided with Nomadix’ private MIB (Management
Information Base), to view and manage SNMP objects on your product, see Installing the
Nomadix Private MIB.
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
misconfigured) 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.
Tri-Mode Authentication
The NSE enables multiple authentication models providing the maximum amount of flexibility
to the end user and to the operator by supporting any type of client entering their network and
any type of business relationship on the back end. For example, in addition to supporting the
secure browser-based Universal Access Method (UAM) via SSL, Nomadix is the only
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