ENSA Mod 6 Flashcards

Front

A set of IP address ranges defined by RFC 1918 for private, non-routable IP addresses, commonly used in internal networks (e.g., 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16).

Back

RFC1918 (Private IP addresses)

Front

The private IP address assigned to a device inside a network, not routable on the internet.

Back

Inside Local Address

Front

The public IP address mapped to an inside local address, used when accessing the internet.

Back

Inside Global Address

Front

The IP address of a device outside the local network, but it’s a private address that might be used within the NAT environment (rarely seen in practice).

Back

Outside Local Address

Front

The public IP address of a device located outside the local network, typically routable on the internet.

Back

Outside Global Address

Front

A one-to-one mapping between a private IP address (inside local) and a public IP address (inside global), providing a permanent translation.

Back

Static NAT

Front

A method of NAT where private IP addresses (inside local) are dynamically mapped to a pool of public IP addresses (inside global), with translations happening on demand.

Back

Dynamic NAT

Front

A form of NAT that maps multiple private IP addresses to a single public IP address using different port numbers, allowing many devices to share one public IP.

Back

PAT (Port Address Translation)

Front

A Cisco command used to configure static NAT, mapping an inside local IP address to a specific inside global IP address permanently.

Back

ip nat inside source static

Front

A command used on Cisco devices to display the current NAT translation table, showing active mappings between private and public IP addresses.

Back

show ip nat translations