Draytek Vigor2860 series User Manual page 567

Port-based mode
Tag-based mode
By above settings, there are four private networks will be created and computers attached
with each of LAN ports or SSIDs which are able to obtain a private IP address from each
DHCP servers (LAN1/LAN2/LAN3/LAN4). However, the traffics of the LAN port or
SSID that are NOT being grouped in the same VLAN are unable to forward to each other.
The benefit of Port-based is able to extend the wired ports by installing a cheaper dumb
switch as many as you need, but Tag-based offers you a flexible and well-managed
network. The networks are isolated, secured and reduce the broadcasting storm
effectively in each of networks with VLAN.

Guest Network
Vigor2860 Series User's Guide
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