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Chapter 8 Network Address Translation (NAT)
and port numbers so incoming reply packets can have their original values
restored. The following figure illustrates this.
Figure 49 How NAT Works
192.168.1.12
192.168.1.11
130
LAN
192.168.1.13
SA
192.168.1.10
Inside Local
Address (ILA)
192.168.1.10
NAT Table
Inside Local
Inside Global
IP Address
IP Address
192.168.1.10
IGA 1
192.168.1.11
IGA 2
192.168.1.12
IGA 3
192.168.1.13
IGA 4
SA
IGA1
Inside Global
Address (IGA)
FSG2200HNU User's Guide
WAN
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