User`s guide

Signamax 065-7931 16-Port 10/100/1000BaseT/TX WebSmart Switch
63
Untag State:
If the user has checked this function for a Tag out port, the packets from
this port may be tag out. But the packet would be untag out if the VID of
its tag is the same as the value of ”Untag VID” while the Untag VID state
is Enable.
Untag VID:
Valid range is 0~4094.
Fig. 4-10