Displays the router’s NAT translation table for verifying how inside local addresses map to inside global addresses and how active sessions are tracked. The columns appear as Inside global, Inside local, Outside local, and Outside global. section 9.3.1 section 9.4
Interpret the output operationally:
- Static NAT creates a permanent mapping row with empty outside columns. section 9.3.1
- Active communication adds protocol and port information, linking the mapping to a specific outside session. section 9.3.1
- Dynamic NAT similarly shows a mapping row plus session rows for DNS, HTTPS, or HTTP traffic. section 9.3.2
- Dynamic session entries disappear after inactivity; clear ip nat translation * manually removes dynamic entries. section 9.3.1 section 9.4
Static mapping and active HTTPS session
R1# show ip nat translations Pro Inside global Inside local Outside local Outside global tcp 192.0.2.1:54568 10.0.0.11:54568 34.117.65.55:443 34.117.65.55:443 --- 192.0.2.1 10.0.0.11 --- --- The TCP row represents an active HTTPS session; the row with dashes preserves the static mapping. section 9.3.1
