Cisco ICND2 – Troubleshoot NAT implementation issues

Here are some NAT troubleshooting tips:

  • show ip nat translations
  • show running-config
  • show ip nat statistatics
  • debug ip nat
  • clear ip nat translations *
  • Check inside and outside are placed on the correct interfaces
  • Ensure the natpool covers the correct range of IPs
  • Check the name of the pools are matched – I made a typo during testing and as a result NAT didn’t work
  • Ensure the access-list is configured correctly to allow translation