Nat/Pat implementation - when to?

Node Man

Hi Everyone,
General question - i understand nat/pat is to conserve public ips and ports. But how do you know when to implement them? At what point is a lan big enough? Are are these always implemented when deploying a router right out of the box?

What is your experience?

Thanks

networker050184

NAT is almost always used with IPv4 implementations. Most people prefer to not have internal devices publically addressed. It conserves your public addresses as those are not easy to come by these days.