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12772449
NAT (NETWORK ADDRESS TRANSLATION)
Description
TRADUCCION DE DIRECCIONES DE RED
No tags specified
nat
cisco ccnp
route 300-101 ccnp
Mind Map by
joseph chiong
, updated more than 1 year ago
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Created by
joseph chiong
over 6 years ago
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Resource summary
NAT (NETWORK ADDRESS TRANSLATION)
DESCRIPCION
Direcciones Privadas RFC1918, traduce: Direcciones Publicas INTERNET
Seguridad y Proteccion de direcciones internas.
RFC 1631
NAT, cambia: Direcciones IP, checksum IP, checksum capa superior
Optimizacion de espacio e direcciones, agotamiento de IPv4
Tabla NAT, relaciona: direcciones y puertos
OPERACION
Direcciones NAT
DIRECCION LOCAL INTERNA
DTE
DIRECCION GLOBAL INTERNA
CPE OUT
DIRECCION LOCAL EXTERNA
ServerWeb
DIRECCION GLOBAL EXTERNA
ServerWeb
Tipos NAT
NAT ESTATICA: Traduce uno - uno
NAT DINAMICA: Traduce muchos - muchos
NAT SOBRECARGA: PAT Traduce muchos- uno
CONFIGURACION
Configuracion NAT ESTATICA
Router-A#show ip nat translation
Router#debug ip nat
Router#debug ip packet detail
R1(config)# interface Ethernet 0/1
R1(config-if)# ip address 209.165.201.1 255.255.255.240
R1(config-if)# ip nat outside
R1(config)# interface Ethernet 0/0
R1(config-if)# ip address 172.16.1.1 255.255.255.0
R1(config-if)# ip nat inside
R1(config)# ip nat inside source static 172.16.1.10 209.165.201.5
Configuracion NAT DINAMICA
R1(config)# interface Ethernet 0/1
R1(config-if)# ip address 209.165.201.1 255.255.255.240
R1(config-if)# ip nat outside
R1(config)# interface Ethernet 0/0
R1(config-if)# ip address 172.16.1.1 255.255.255.0
R1(config-if)# ip nat inside
R1(config)# access-list 1 permit 172.16.1.0 0.0.0.255
R1(config)# ip nat pool NAT-POOL 209.165.201.5 209.165.201.10 netmask 255.255.255.240
R1(config)# ip nat inside source list 1 pool NAT-POOL
Configuracion NAT SOBRECARGA - PAT
R1(config)# interface Ethernet 0/1
R1(config-if)# ip address 209.165.201.1 255.255.255.240
R1(config-if)# ip nat outside
R1(config)# interface Ethernet 0/0
R1(config-if)# ip address 172.16.1.1 255.255.255.0
R1(config-if)# ip nat inside
R1(config)# access-list 1 permit 172.16.1.0 0.0.0.255
R1(config)# ip nat inside source list 1 interface Ethernet 0/1 overload
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