Configuration guidelines
Follow these guidelines when you assign an IP address to an interface:
Each interface has only one primary IP address. A newly configured primary IP address overwrites the previous one.
You cannot assign secondary IP addresses to an interface that obtains an IP address through BOOTP or DHCP.
The primary and secondary IP addresses you assign to the interface can be located on the same network segment, but different interfaces on your device must reside on different network segments.
You can manually assign an IP address to an interface, or configure the interface to obtain an IP address through BOOTP or DHCP. If you change the way an interface obtains an IP address, the new IP address overwrites the previous one.
The switch supports a 31-bit subnet mask (the mask 255.255.255.254) for saving IP addresses in the point-to-point communication.