NAT, IP ISP

NAT

NAT

NAT NAT NAT IP IP IP NAT IP , (overloading) , IP IP (Port Address Translation, PAT)

NAT

NAT

PAT

NATIP

NAT access-list 1 IP todd IP NAT pooladdress poolNAT

PATaddress

NAT IP

debug ip nat NAT

clear ip nat translation NAT

NATNAT ,

NAT()ip nat translation max-entries , show ip nat statistics NAT , active (hit) (miss) pool (refcount)

NAT ()clear ip nat translations NAT NAT NAT , Cisco IOS ip nat translation timeout NAT NAT , translation timeout, , NAT , Cisco 86, 400 (24 )

NAT1 NAT, NAT

NAT26 IP , 192.1.2.109 192.1.2.114 63 192.168.10.65 192.168.10.126 prefix-length 29 netmask ip nat pool Todd 192.1.2.109 192.1.2.114 netmask 255.255.255.248, 2 6 TCP ip nat inside ip nat outside

NATCorp R3 PAT

NAT

NAT()

NAT()

Corp NAT Corp NAT Corp 64.1.1.5 / 30, R3

NATsh ip nat trans HostC ping telnet HostD

NAT debug ip nat Corp debug ip nat, HostB telnet HostD

NAT show ip nat translation

NAT show ip nat statistics

SDM NAT (1) Configure-->NAT NAT , , NAT NAT DMZ, , NAT

SDM NAT (2)Basic NAT, Launch the Selected Task

SDM NAT (3) Next

SDM NAT (4), Next

, Finish

SDMNAT(1)

SDMNAT(2)

SDMNAT(3) ip nat inside source list

SDM