What is carrier grade NAT?

Tags:
carrier grade NAT
carrier services
enterprise WAN
IPv6
NAT
Network Address Translation
WAN
What is carrier grade NAT and what is it used for?

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“Carrier-Grade NAT” is basically where the “Internet provider” issues their customers private IP addresses for them to use as their “Public IP”:

Carrier gets a Public IP 64.x.x.x, NATs it to their customers as, say, 10.1.x.x. The customers “home routers” NAT it again to another Private IP range – 192.168.x.x.

Its an attempt to styme the effects of IPv4 Public IP depletion and/or ease the transition to IPv6…

See also: Carrier Grade NAT

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