Hi,
My Omnia is DHCP client both for IPv4 and IPv6 (Orange France ISP)
I have two interfaces ‘wan’ and ‘wan6’ on physical ‘eth1.832’ i.e. WAN connector on VLAN 832
config interface 'wan'
option ifname 'eth1.832'
option proto 'dhcp'
...
config interface 'wan6'
option ifname 'eth1.832'
option proto 'dhcpv6'
...