Default Gateway
192.168.1.1 | 192.168.1.0 | 10.1.2.3 | |
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192.168.1.2 |
| Router/Gateway |
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| running NAT |
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192.168.1.3 |
| IP=10.1.2.3 |
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192.168.1.4
Default Gateway is where packets
192.168.1.5addressed outside the subnet are sent to.
Local
internet
Global
Node 192.168.1.5 needs to send a packet to 207.68.172.246 (msn.com)
Node 192.168.1.5 identifies that 207.68.172.246 is outside the subnet (255.255.255.0 )
The packet is sent to 192.168.1.0, the default gateway
NAT translates the source field to 10.1.2.3
The internet sees a packet from 10.1.2.3 to 207.68.172.246
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