Educational ICT Virtualisation Specialist

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Firewalling-NAT

Jump To: Support > KB > NetManager > Firewalling > NAT

NAT (Network Address Translation)

NAT allows you to hide a whole private network (which may contain thousands of machines) behind a single IP address. This has a number of benefits:

  • If your Internet connection (and thus external IP address) changes, you do not need to re-configure any machines except the NetManager.
  • All internal machines are protected from access from the outside
  • You can easily filter outbound traffic from internal machines using firewalling.
  • You can have many more internal machines than your ISP have allocated you IP addresses for. Some LEA-provided school connections may have only 256 addresses. Real Internet connections have even fewer (perhaps only 1 or 5).

NAT is easily enabled in webadmin by going to Network > NAT

To allow access to internal machines from outside, you will need to use Port Mapping.

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Page last modified on October 20, 2009, at 10:44 AM by sborrill