ADTRAN NetVanta 1224R User Manual

TECHNICAL SUPPORT NOTE
Using the GUI to Configure a NetVanta 1224R/STR for Internet Access

using an Ethernet Port (Cable or DSL modem)
Featuring ADTRAN OS and the Web GUI

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Introduction

This Technical Support Note shows how to configure the NetVanta 1224R/STR for an Internet
connection using an ethernet port. In this scenario, you will usually have a separate cable or
DSL modem that will handle the WAN protocol and then provide ethernet to a port on the
NetVanta.

Overview

Configuring the NetVanta 1224R/STR requires an understanding of the VLAN interface model.
VLAN interfaces are used to create directly connected networks on the unit. Ports can then be
defined as members of those VLANs. We will utilize VLAN interfaces to create a WAN and
LAN segment for the 1224R. Next, we will add a default route and use the Firewall Wizard to
setup basic Internet connection sharing (NAPT).

Step 1 – Logging into the unit.

The unit will come from the factory with an IP address of 10.10.10.1 on the default VLAN 1
interface. Set the IP address on your workstation to 10.10.10.2 with a subnet mask of

255.255.255.0 and a default gateway of 10.10.10.1. In this example, we will use the first port as
our Internet access port. Make sure you have an ethernet cable attached from your workstation
to any other free port on the unit. Open a web browser such as Microsoft Internet Explorer and
type in 10.10.10.1 for the URL. You will be prompted for a username and password for which
you should enter “admin” and “password” respectively since this is the factory default. After
successfully entering the username and password, the main GUI page will be displayed.

Step 2 – Setting up the Private VLAN Interface

Click the “VLANs” link to setup the IP addresses for the unit. In the following diagrams, we
will change the default IP address to 192.168.1.254. Note: When you submit the default IP
address change, you will need to change your workstation IP address to match up with the new
subnet and reconnect to the NetVanta using the new IP address. For example, after making the
IP address change, set your workstation IP address to 192.168.1.1.

You will see the default VLAN listed with the 10.10.10.1 IP address. You can click this VLAN
and change the private IP address to the private IP address you have chosen.

Change the IP address to 192.168.1.254. After changing the default VLAN interface IP address,
be sure to change your workstation IP address to match this network. For example, you could
use 192.168.1.1 as your workstation IP address with a default gateway of 192.168.1.254.

Step 3 – Add a New VLAN for the Public Subnet (Port)

The public VLAN will be configured in one of three different modes, (A) IP Routing with a
Static IP, (B) IP Routing using DHCP, or (C) PPPoE. DHCP is normally used when connected
to a cable modem and PPPoE is often used when connected to a DSL modem set in pass-through
or bridge mode. The following pages will show an example of each different scenario. We will
use VLAN 100 for the public VLAN and 100.100.100.2/30 as the public IP address when a
static IP address is used. When a static IP address is used, we need to make sure that a static
default route is entered on the “Route Table” page. Add a new VLAN by clicking the “VLAN”
link and then clicking the “Add a New VLAN” button.