For hosts with wired and wireless nics, utm does not allow multiple ip addresses to be set. For ipv4, where the unique mac addresses can be used to identify the wired and wireless nics, utm only allows one ipv4. If a laptop is connected to the network using the wired nic, then using the wireless nic, there will be an address collision. The only workaround is to allocate two hosts, one for wired and one for wireless. This is a duplication of effort and also wastes licences. It should be possible to assign as many addresses to a host as there are nics. This bug affects both ipv4 and ipv6, although with the DUID bug, there is no way to uniquely identify multiple nics.