NAT Static NAT

REFERENCE

IP Addressing Services Command Reference
ip nat inside source

DIAGRAM

      192.168.234.0/24                  10.1.5.0/24
[R2]----------+--------(fa1/0)--[R1]--(fa0/0)--------[R5]
              |              in    out
[R3]----------+
              |
[R4]----------+

CONFIG

hostname R1
!
int fa0/0
 ip nat out
!
int fa1/0
 ip nat in
!
ip nat inside source static 192.168.234.2 10.1.5.1
!
end

VERIFY

R2#ping 10.1.5.5
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.5.5, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/27/44 ms
R2#telnet 10.1.5.5
Trying 10.1.5.5 ... Open


User Access Verification

Password:
R5>
R1(config)#do sh ip nat trans
Pro Inside global      Inside local       Outside local      Outside global
icmp 10.1.5.1:1        192.168.234.2:1    10.1.5.5:1         10.1.5.5:1
tcp 10.1.5.1:35937     192.168.234.2:35937 10.1.5.5:23       10.1.5.5:23
--- 10.1.5.1           192.168.234.2      ---                ---
R1(config)#

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