Network Address Translation traversal support
This chapter describes the support for an IP Security (IPSec) tunnel that traverses a Network Address Translation (NAT) or Network Address Port Translation (NAPT) device.
The chapter offers a high-level overview of NAT and NAPT, explains why NAT and NAPT pose problems for IPSec, and describes support for IPSec tunnels that traverse a NAT or NAPT device.
This chapter describes the solution to these problems ...

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