2014. 11. 20. NAT Dynamic

 

PC1, 2 // Sw1

! interface FastEthernet0/1  ip address 10.1.4.2 255.255.255.128  duplex auto  speed auto ! ip http server ip classless ip route 0.0.0.0 0.0.0.0 10.1.4.1 !

! interface FastEthernet0/1  ip address 10.1.4.130 255.255.255.128  duplex auto  speed auto ! ip http server ip classless ip route 0.0.0.0 0.0.0.0 10.1.4.129 !

! interface FastEthernet0/1  switchport mode access  switchport access vlan 10 ! interface FastEthernet0/2  switchport mode access  switchport access vlan 20 ! interface FastEthernet0/3  switchport mode trunk !

 

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R1

! interface FastEthernet0/0.10  encapsulation dot1Q 10  ip address 10.1.4.1 255.255.255.128  ip nat inside ! interface FastEthernet0/0.20  encapsulation dot1Q 20  ip address 10.1.4.129 255.255.255.128  ip nat inside ! interface Serial0/0/0  ip address 10.1.12.1 255.255.255.252  ip nat outside  clock rate 2000000 ! ip nat pool A 100.100.99.1 100.100.99.6 netmask 255.255.255.248 ip nat pool B 100.100.99.9 100.100.99.14 netmask 255.255.255.248 ip nat inside source list 1 pool A ip nat inside source list 2 pool B ip classless ip route 0.0.0.0 0.0.0.0 10.1.12.2 ! ! access-list 1 permit 10.1.4.0 0.0.0.127 access-list 2 permit 10.1.4.128 0.0.0.127 !

Router>sh ip nat translations Pro Inside global      Inside local       Outside local      Outside global --- 100.100.99.3          10.1.4.2                ---                      --- --- 100.100.99.11       10.1.4.130              ---                       ---   Router>sh ip route      100.0.0.0/30 is subnetted, 1 subnets S       100.100.99.0 [1/0] via 10.1.12.2      10.0.0.0/30 is subnetted, 3 subnets C       10.1.12.0 is directly connected, Serial0/1 C       10.1.4.0 is directly connected, Ethernet0/1.10 C       10.1.4.128 is directly connected, Ethernet0/1.20

 

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R2

! interface Serial0/0/0  ip address 10.1.12.2 255.255.255.252 ! ip classless ip route 100.100.99.0 255.255.255.128 10.1.12.1 ip route 100.100.99.8 255.255.255.248 10.1.12.1 !