Oce CS2436 User Manual page 599

Network Setting (CS2436-9)
6.
When there is an IPv6-compatible router in the network environment, select On in
Stateless Address.
Additionally, when there is an DHCPv6-compatible server in the network environment,
select On in DHCPv6.
Note
7.
Click Set.
8.
Click OK after the Confirmation message is displayed.
9.
Exit Device Setup Utility.
When there is no IPv6-compatible router or DHCPv6-compatible
server, select On in Manual and enter the IPv6 Address and Prefix
Length.