D-Link DSR-250N - Captive Portals on a VLAN; Figure 17: Blocking Specific Clients by Their MAC Address; Figure 18: VLAN Based Configuration of Captive Portals

Unified Services Router User Manual
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Figure 17: Blocking specific clients by their MAC address
2.5.2 Captive Portals on a VLAN
Setup > VLAN Settings > VLAN Configuration
Captive Portals can be enabled on a per-VLAN basis. Hosts of a particular VLAN can be directed to
authenticate via the Captive Portal, which may be a customized portal with unique instructions and
branding as compared to another VLAN. The most critical aspect of this configuration page is
choosing the authentication server. All users (VLAN hosts) that want to gain internet access via the
selected Captive Portal will be authenticated through the selected server.
Figure 18: VLAN based configuration of Captive Portals