Siemens CL-110 user manual Unnumbered IP over ATM IPoA+NAT, Primary IP Address Subnet mask

Chapter 3:Accessing Internet

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 LAN IP address ranging from 10.3.75.49 to 10.3.75.54 and the subnet mask for LAN is 255.255.255.248. The WAN address is 10.3.70.1, and the subnet mask for WAN is 255.255.255.252.

In such circumstance, we enable NAT function but not assign any WAN IP.

Configuration:

1.Start up your browser and type 192.168.1.1 as the address to enter this ADSL web-based manager.

2.Go to Quick Start -Quick Setup. Uncheck Auto Scan Internet Connection (PVC). Type in the VCI and VPI value. Then click the Next button.

VPI – 0 VCI – 32

3.On the Configure Internet Connection -Connection Type page, select the IP over ATM (IPoA) then click the Next button.

4.In the WAN IP Settings page, select None for WAN IP address settings. Then, select Use the following DNS Server Address. Type in the Primary DNS server and Secondary DNS server. Click Next for next page.

Primary DNS server: 168.95.1.1

Secondary DNS server: 168.95.192.1

5.Check the Enable NAT box. And click Next.

6.In the Configure LAN side Settings page, type in the IP address and subnet mask for your LAN.

Primary IP Address: 192.168.1.1

Subnet mask: 255.255.255.0