802.1q (VLAN tagging) with native VLAN

Our network admin set up the switch port for eth0 so that 802.1q is enabled.  However, he set up a "native" (in other words, default) VLAN which has no tag.  Any frames going to other VLANs over the same switch port will be explicitly tagged.  Is is possible to use "native" VLANs with RHEV 3.0?  When configuring a VLAN in RHEV-H, it requires a non-zero VLAN ID.