ADTRAN NetVanta 1224R Installation instructions
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.
(Option A) – IP Routing with a Static IP Configuration. The IP address 100.100.100.2 is used
as an example. The IP address information should have been provided to you by your Internet
Service Provider (ISP).
(Option B) – IP Routing Using DHCP. This is a typical cable modem setup.
(Option C) – PPPoE (ADSL modem set to pass-through mode)
Set the Interface Mode to PPPoE and click “Apply”. Clicking “Apply” will open a new page to
set PPPoE specific settings.
(Option C) – PPPoE specific settings
A username and password are required for PPPoE. Service Name and AC Name are rarely used
but should be entered if provided by the ISP. Peer Authentication type should almost always be
set to “None”. Also, PPPoE should be set for “Negotiated” IP address unless the ISP has
specified a static IP address. Whenever a static IP address is used, you will need to complete the
optional step 4, which shows how to configure a static default route.
Step 4 – Adding a Default Route when using a Static IP Address
This step is not required when learning a default route dynamically as in step 3 (option B) when
we used DHCP. You need to add a static default route when using IP Routing with a static IP
address or PPPoE with a static IP address. Click the “Route Table” link and then add a static
default route by specifying the destination network and subnet mask as 0.0.0.0. In our example,
the static IP address assigned to us by our ISP is 100.100.100.2 and the default route gateway IP
address set below is 100.100.100.1.
Step 5 – Assign an Ethernet Port to be a member of the Public VLAN
In the example below, we are setting the first Ethernet port as a member of VLAN 100 and
setting it to “edgeport” mode to allow this port to come up immediately. This port should be
plugged into your Internet connection. Make sure your workstation is not plugged into this port
and remember to click the “Apply” button. Also, it is probably a good idea after making this
change to click the “Save” button to save the configuration in nonvolatile memory.
Step 6 – Using the Firewall Wizard to Setup Internet Connection
Sharing (NAPT)
We will use the Firewall Wizard to setup the “Security Zones” on the router. You can also
setup some basic port forwarding using this wizard. Note: You only want to use this wizard for
the initial configuration. All future firewall settings should be added using the “Security Zones”
link.
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