About

The connection of subnet is done via the translation of the IP in:

• the source subnet
• to the target subnet.

Mostly, there is a translation between a private subnet and the public subnet (the internet) when you are browsing the internet.

Service

There is multiple service that permits IP translation:

• NAT
• Masquerade

Implementation

They are to be found in:

• firewall
• and network routers.