NAT#show run
Building configuration...

Current configuration : 892 bytes
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname NAT
!
!
ip subnet-zero
no ip icmp rate-limit unreachable
!
!
ip tcp synwait-time 5
no ip domain-lookup
!
ip cef
!
call rsvp-sync
!
!
!
!
!
!
!
!
interface FastEthernet0/0
 ip address 192.168.123.3 255.255.255.0
 ip nat inside
 duplex auto
 speed auto
!
interface FastEthernet1/0
 ip address 192.168.23.2 255.255.255.0
 ip nat outside
 duplex auto
 speed auto
!
!
ip nat pool ccna 192.168.23.10 192.168.23.20 prefix-length 24
ip nat inside source list 1 pool ccna
ip classless
no ip http server
!
!
!
!
!
!
!
!
!
access-list 1 permit 192.168.123.0 0.0.0.255
!
!
dial-peer cor custom
!
!
!
!
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
line aux 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
line vty 0 4
 login
!
end


NAT#show ip nat translations
Pro Inside global      Inside local       Outside local      Outside global
--- 192.168.23.10      192.168.123.1      ---                ---
--- 192.168.23.11      192.168.123.2      ---                ---
--- 192.168.23.12      192.168.123.50     ---                ---
--- 192.168.23.13      192.168.123.90     ---                ---
--- 192.168.23.14      192.168.123.60     ---                ---