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Gemini G3 - User Manual
33
4.7.3.5.1.2
NAT on the Mobile Unit (GeminiG3)
When NAT is enabled on a GeminiG3 unit, the network covered by the Ethernet interface is consid-
ered private. In the following example, NAT is enabled on a single mobile.
Figure 26 - NAT Enabled on GeminiG3
An IP packet sent from the private network towards the External network would have its source IP
address replaced by the RF IP address of the GeminiG3 radiomodem.
Figure 27 - GeminiG3 - Private to Public Network (RF)
Packet (1)
Source Address 173.30.1.2
Destination Address 200.1.1.1
Packet (1)
Source Address 10.0.1.2
Destination Address 200.1.1.1
173.30.1.1/24
10.0.1.2/24
GeminiG3 (NAT Enabled)
Management Host 1
173.30.1.2/24
Mobile Host 1
200.1.1.1/24
Private network
(173.30.1.0/24)
Public network
(RF)
External Host 1
200.1.1.1/24
RF Network
Public Network
(
External N RF N
Mobile 2 N Management
Network
)
Private Network
173.30.1.0/24
Base
(Paragon3)
Ethernet 1
192.168.1.1/24
Mobile Host 1
173.30.1.2/24
Mobile (G3)
Mobile (G3)
Ethernet 2
172.30.1.1/24
RF 10.0.1.2/24
RF 10.0.1.3/24
173.30.1.1/24
174.30.1.1/24
Mobile Host 2
174.30.1.2/24
Mobile 2 Network
External
Network
Management Host 1
172.30.1.2/24
Management Host 2
172.30.1.3/24
Management Network
RF 10.0.1.1/24