Netcomm NB6W Manuel D’Utilisation

PPP over ATm (PPPoA) mode

Description: 

In this deployment environment, the PPPoA session is between the ADSL WAN interface and BRAS. The 
ADSL Router gets a public IP address from BRAS when connecting to DSLAM. The multiple client PCs will get 
private IP address from the DHCP server enabled on private LAN. The enabled NAT mechanism will translate 
the IP information for clients to access the Internet.

Configuration:

1. 

Start your browser and type 

192.168.1.1 as the address 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 PPP over ATM (PPPoA) then click 

the 

Next button. 

4. 

On the 

WAN IP Settings page, select Obtain an IP address automatically and check Enable NAT box. 

Click 

Next.

5. 

On the 

PPP Username and Password page, enter the PPP username and password that you got from 

your ISP. Select 

Always on or select Dial on Demand and key in the inactivity timeout value. (The default 

value is 20 minutes.) Then click 

Next.

6. 

On the 

Configure LAN side Settings page, key in the IP address and subnet mask for your LAN, e.g.: 

Primary IP address: 192.168.1.1
Subnet Mask: 255.255.255.0

Check 

DHCP Server on box. And key in the start and end IP address, e.g.: 

Start IP Address:192.168.1.2
End IP Address: 192.168.1.254

Then enter the leased time ( the default is 1 day), and click 

Next.

7. 

Check the network information on 

This Internet Connection -- Summary page. Make sure the settings 

match the information provided by your ISP. Click 

Finish.