NAT -- Dynamic NAT pool

Dynamic NAT Lab for CCNA exam

//-----------------------------------------------------//

R1#

R1#

interface FastEthernet0/0

no sh

 ip address 192.168.1.254 255.255.255.0

 ip nat inside

!

interface FastEthernet0/1

no sh

 ip address 100.1.1.1 255.255.255.0

 ip nat outside

!

ip nat pool dynat 100.1.1.5 100.1.1.6 netmask 255.255.255.0

ip nat inside source list 10 pool dynat

access-list 10 permit 192.168.1.0 0.0.0.255

//-----------------------------------------------------//

R2#

R2#

interface FastEthernet0/1

no sh

 ip address 100.1.1.2 255.255.255.0

//-----------------------------------------------------//

dynat#ping 100.1.1.2 source fa0/0

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 100.1.1.2, timeout is 2 seconds:

Packet sent with a source address of 192.168.1.254

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 20/24/32 ms

dynat#

dynat#sh ip nat translations

Pro Inside global      Inside local       Outside local      Outside global

icmp 100.1.1.5:0       192.168.1.254:0    100.1.1.2:0        100.1.1.2:0

icmp 100.1.1.5:1       192.168.1.254:1    100.1.1.2:1        100.1.1.2:1

icmp 100.1.1.5:2       192.168.1.254:2    100.1.1.2:2        100.1.1.2:2

--- 100.1.1.5          192.168.1.254      ---                ---

dynat#