From the course: Cisco Network Security: VPN
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Translating the network address - Cisco Routers Tutorial
From the course: Cisco Network Security: VPN
Translating the network address
- [Instructor] Any visible company on the internet requires a public IP address. Internally, organizations use private IP addressing. As a result, many organizations use Network Address Translation. Network Address Translation operates on a router and converts private IP addresses to a public IP address and vice versa. The receiving host will only see the public IP address providing an additional layer of security by concealing the entire internal network behind that address. The network administrator configures NAT to allow internal users to access the internet. Prior to exiting the internet, the traffic must pass through the router and be converted to a public IP address. When configuring traditional NAT ethernet interfaces on a router are NAT inside, and serial interfaces are NAT outside. And the administrator must configure a set of rules for translating the IP addresses in the packet headers. Here you can see a NAT…
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