NAT Flashcards

1
Q

limpar tabela nat

A

clear ip nat translations [*]

Nao sera possivel apagar/alterar um pool NAT se algum endereco estiver na tabela NAT

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2
Q

Configuracao NAT dinamico e PAT

A

(config)
ip nat pool [NOME] X.X.X.X Y.Y.Y.Y [netmask/ prefix-length] [Z.Z.Z.Z/ X]

ip nat inside list X pool [nome] [overload]

access-list X permit A.A.A.A

(config-int)
ip nat [inside/outside]
———————————-

ip nat inside list X interface Y overload

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3
Q

Configuracao NAT estatico

A

(config)
ip nat inside source static X.X.X.X Y.Y.Y.Y
(config-int)
ip nat [inside/outside]

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4
Q

tempo padrao que uma entrada fica na tabela NAT e como alterar

A

24horas (86.400 segundos) a partir da ultima traducao

ip nat translation timeout

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5
Q

Verificacao NAT

A

sh ip nat translations

debug ip nat

sh ip nat statistics (resumo das configuracoes nat, numero de traducoes realizadas, revela traducoes expliradas)

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6
Q

porque e como limitar o numero de traducoes feitas pelo NAT?

A

nao sobrecarregar o roteador (performance) e politica de restricoes

ip nat translations max-entries

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