Netcomm NB6W Manuel D’Utilisation

Unnumbered IP over ATm (IPoA)+NAT

Description: 

If you apply for multiple IP addresses from your ISP, you can assign these public IP addresses to the ADSL 
Router and public server, e.g., Web or FTP server. Typically the first IP is network address, the second is used 
as router IP address and the last one is subnet broadcasting. Other remaining IP addresses can be assigned 
to PCs on the LAN.

The following example uses the IP address ranging from 10.11.80.81 to 10.11.80.86 and the subnet mask is 
255.255.255.248. In such circumstance, we enable NAT function but not assign any WAN IP. 

Configuration:

1. 

Start your browser and type 

192.168.1.1 in the URL box to access ADSL web-based manager.

2. 

Go to 

Quick Start – Quick Setup. Uncheck Auto Scan Internet Connection (PVC). Key in the VCI and VPI 

value, e.g.: 

• 

VPI – 8

• 

VCI – 35

Click the 

Next button.

3. 

On the 

Configure Internet Connection – Connection Type page, select IP over ATM (IPoA) then click Next.  

4. 

On the 

WAN IP Settings page, select None for WAN IP address settings. Then, select Use the following 

DNS Server Address and key in the information that your ISP offered, e.g.: 

Primary DNS server: 168.95.1.1
Secondary DNS server: 168.95.192.1 

5. 

Check the 

Enable NAT box. And click Next.

6. 

On the 

Configure LAN side Settings page, key in the information for your LAN, e.g.,

Primary IP Address: 192.168.1.1
Subnet mask: 255.255.255.0
Start IP Address: 192.168.1.2
End IP Address: 192.168.1.254

7. 

Check 

Configure the second IP Address and Subnet Mask for LAN Interface and enter the information 

needed, e.g.,

Secondary IP Address: 10.11.80.81
Subnet mask: 255.255.255.248 

Click 

Next.

8. 

Check the network information on the 

Summary page. Make sure the contents match the settings 

provided by your ISP. Click Finish.

9. 

Now the router is correctly configured. You can access the Internet.