User Manual

3 Connecting Access Device to network

This chapter describes Access Device network interfaces and WiFi and modem configuration. For additional

documentation, see separate "Networking Guide" document.

3.1 Network interfaces

The network interfaces used in Access Devices are described in table below:

3.2 Using 2G and 3G modems for Internet connectivity

Access Server and Access Point can be connected to Internet over 2G/3G using USB modems from several

vendors. Access Server 229x can also connect to Internet using a GSM/GPRS Compact Flash card or an

external modem connected to its serial port. The supported devices are listed in Tested 3rd Party Peripherals

document.

Some Access Server AX4 models ship with integrated 2G or 3G modem.

Software packages required to use modem to connect to Internet are installed by default.

The operating system automatically identifies supported USB or Compact Flash modem devices and loads

correct drivers when they are inserted.

You can enable the modem and configure its settings, such as the modem device and connection script details,

by using the application or its WWW interface at setup Setup - Network settings - Enable modem interface

A reboot is needed for the new settings to take effect. From WWW Setup, you can do this at Setup - Advanced settings -

.Reboot system (confirm)

When modem connection to Internet is enabled, by default Access Device tries to establish Internet connection

with modem only once when the device boots up.

Table : Access Device network interfaces and their description2

Interface Description

nap Dynamic virtual ethernet ("cable") device. This is the device having an IP address. All the

programs should use this device instead of eth0.

nap:9 Alias interface of nap device for zero configuration networking.

eth0 The real ethernet device, which is dynamically linked to the nap device. Do not use this device,

use nap instead.

wlan0 Wi-Fi device. In the client mode (default), this device has its own IP address. In the access

point mode, it is dynamically linked to the nap device (the default interface).

wifi0 Virtual control device for wlan0. Do not use this device.

gn Virtual device for iWRAP PAN-GN connections.Bluetooth

bnep# These devices are used for incoming and outgoing iWRAP PAN connections. TheseBluetooth

devices are created, deleted and linked (to nap or gn) dynamically.

ppp# These devices are used for incoming and outgoing iWRAP LAP connections or for aBluetooth

modem Internet connection. In LAP use, these devices are created and deleted dynamically

and traffic coming from them is masqueraded to the nap device. When modem is enabled, all

traffic to ppp interfaces is also masqueraded.

lo Local loopback interface.