200-301 · Question #775
Which two types of NAT addresses are used in a Cisco NAT device? (Choose two.)
The correct answer is A. inside local B. inside global. Cisco NAT commonly uses inside local addresses for internal private IPs and inside global addresses for the public IPs that represent internal hosts to the outside world.
Question
Options
- Ainside local
- Binside global
- Cinside private
- Doutside private
- Eexternal global
- Fexternal local
How the community answered
(27 responses)- A96% (26)
- E4% (1)
Why each option
Cisco NAT commonly uses `inside local` addresses for internal private IPs and `inside global` addresses for the public IPs that represent internal hosts to the outside world.
An `inside local` address is the private IP address assigned to a host on the inside network.
An `inside global` address is the public IP address that an inside host uses when communicating with the outside network, acting as its translated public identity.
"Inside private" is not standard Cisco NAT terminology; it broadly describes `inside local` addresses.
"Outside private" is not standard Cisco NAT terminology; the concept of a private address on the outside network is typically called `outside local`.
"External global" is not standard Cisco NAT terminology; it is typically referred to as `outside global`.
"External local" is not standard Cisco NAT terminology; it is typically referred to as `outside local`.
Concept tested: Cisco NAT address types
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/xe-3s/nat-xe-3s-book/ipnat-cfg-nat-ovrld-fr.html
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