Previous Video: https://www.youtube.com/watch?v=wPIjSqZsQyM

NAT Playlist: https://www.youtube.com/playlist?list=PLDzveA55I0_gGGIxKOH3XUbV331J8uLU6

Translate interesting traffic.
Butter(config)#access-list 1 permit 10.0.0.0 0.0.0.255

Define the pool of address that will be used for translation.
Butter(config)#ip nat pool POOL_NAME 100.50.0.0 100.50.0.3 netmask 255.255.255.252


Map the access list to the interface.
Butter(config)#ip nat inside source list 1 pool POOL_NAME [overload]


Define the outside and inside interfaces
Butter(config)#interface s0/0/0
Butter(config-if)#ip nat outside

Butter(config)#interface g0/0
Butter(config-if)#ip nat inside

pinkie pie: hidden on the interwebs! Sorry!
luna: http://mylittlefacewhen.com/f/9286/
fluttershy: http://crusierpl.deviantart.com/art/Scared-Fluttershy-289567767