
Chapter 8 Network Address Translation (NAT)
Figure 77 How NAT Works
NAT Table
LAN |
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| Inside Local |
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| IP Address |
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192.168.1.13 | 192.168.1.10 |
| IGA 1 | ||||||||
192.168.1.11 |
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| 192.168.1.12 |
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| 192.168.1.13 |
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192.168.1.12 |
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| SA |
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| 192.168.1.10 |
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WAN
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Inside Local | Inside | Global | |
Address (ILA) | Address (IGA) |
192.168.1.11 192.168.1.10
8.6.4 NAT ApplicationThe following figure illustrates a possible NAT application, where three inside LANs (logical LANs using IP alias) behind the ZyXEL Device can communicate with three distinct WAN networks.
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