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Objective Domain 7. Installing, Configur... > Objective 7.2 Install NAT

Objective 7.2 Install NAT

Network Address Translation (NAT) is similar to Internet Connection Sharing (ICS), although it provides more flexibility and requires more steps to implement. One of the major differences between NAT and ICS is that NAT requires, at a minimum, Windows 2000 Server, while you can configure ICS from Windows 2000 Professional or Microsoft Windows 98 Second Edition. You load and configure NAT from the Windows 2000 Routing And Remote Access Manager. NAT provides the following:

  • Manual configuration. This gives the user a more versatile method of configuring translated remote access connections.

  • Multiple public Internet Protocol (IP) addresses. NAT can use more than one range of public addresses.

  • Configurable address range. NAT allows manual configuration of IP addresses and subnet masks, whereas ICS uses a fixed IP address range. You can configure any range of IP addresses using the NAT properties in Routing And Remote Access Manager. A DHCP allocator provides the mechanism for distributing IP addresses, the same way DHCP does this. NAT can also use IP addresses distributed from a DHCP server by selecting the Automatically Assign IP Addresses By Using DHCP check box in the NAT properties sheet.

  • DNS and WINS Proxy. You can establish name resolution by using either DNS or WINS. To configure this, select the appropriate check boxes in the NAT properties sheet under the Name Resolution tab.

  • Multiple network interfaces. You can distribute NAT functionality on more than one network interface by adding the interface to NAT in the Routing And Remote Access Manager.


  

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