13. Managing Overlapping IP Addresses in a NAT Environment

NAT (network address translation) helps you save IP addresses by allowing many local networks to be connected to the global Internet using a single dynamic external (public) IP address. NAT can also enhance the security of private networks by hiding internal addresses from external networks. This chapter explains the configurations of NAT and overlapping IP addresses used by NNMi.

Organization of this chapter

• 13.1 About NAT

• 13.2 Benefits of NAT

• 13.3 Supported NAT types

• 13.4 How to implement NAT in NNMi

• 13.5 Considerations on static NAT

• 13.6 Dynamic NAT and dynamic PAT considerations

• 13.7 Mapping overlapping IP addresses

To Page Top