Aiphone IX-MV Setting Manual page 207

Caution Caution
 IPv4 and IPv6 cannot be mixed in the same system.
 When selecting "DHCP" for IPv4, configure the system so that the DHCP server
assigns a Static IP Address to each station.
 When selecting "Stateless" for IPv6, do not change the prefix of the device so that it
can transmit RA.
 When selecting "DHCPv6" for IPv6, configure the system so that the DHCP server
assigns a Static IP Address to each station. DUID of the station is "00030001 + MAC
address."
 When setting up a product from another manufacturer, such as a DHCP server, refer
to its manual.
System Settings (Settings (Station View))
207