A message about interface conflict or ARP IP address conflict is displayed when a NAT server is configured

When the IP address of an interface on the public network is used in the nat server command to configure an intranet server to provide services for users on the public network, the following error message is displayed:
[AR2200-GigabitEthernet0/0/1] ip address 22.1.1.1 24
[AR2200-GigabitEthernet0/0/1] nat server protocol 80 global 22.1.1.1 inside 10.1.1.1
Error: The address conflicts with interface or ARP IP.
To solve this problem, change the public IP address to the current-interface in the nat server command as follows:
[AR2200-GigabitEthernet0/0/1] nat server protocol 80 global current-interface inside 10.1.1.1

Scroll to top