Replacing a primary IPv4 address automatically

Beginning with FastIron 8.0.50, you no longer need to remove the primary IPv4 address before you configure a new primary address.
Use the replace keyword in the ip address command to remove a configured IP address.

A secondary address must be removed before the replace keyword can be configured. This option is supported on a router image only. Changing the subnet mask is not supported.

Attention: Traffic and protocols on the configured interface are affected during the IP address change.

Prior to FastIron 8.0.50, an IP address configured globally is the IP address of the management port. On a switch, even if the IP address is configured in interface configuration mode, the address is configured globally. Now, whenever the IP address is configured on the management interface (in management interface configuration mode), a message indicates that the global IP address is also being configured accordingly, as in the following example. 

device(config)# interface ethernet 1/1/1
device(config-if-e1000-1/1/1)# ip address 192.168.10.1/24 replace
Parent topic: Configuration Fundamentals