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4.4.1 Management VLAN
Management VLAN settings allow administrator to access the device and perform the web manage-
ment over a dedicated VLAN only.
The following rules are applied with the Management VLAN:
1. If the 802.1Q Control function is disabled, Management VLAN settings are ignored and no
VLAN limitation is applied in accessing the web management interface. The http server only
accepts untagged management packets and replies untagged packets to the management host.
2. If [Management VLAN - VID] settings is zero, no VLAN limitation is applied in accessing the
web management interface. The http server only accepts untagged management packets and
replies untagged packets to the management host.
3. If [Management VLAN - VID] settings is not zero, The http server only accepts tagged manage-
ment packets matched [Management VLAN -VID] and replies tagged packets with tag com-
posed of [Management VLAN] VID, CFI and User Priority settings to the management host.
Summary of the rules:
802.1Q Control
Management VLAN VID
Embedded Http (Web) Server operation
Disabled
Ignore
Accept untagged web packets
Reply untagged packets
Enabled
VID=0
Accept untagged web packets
Reply untagged packets
Enabled
VID<>0
Accept matched tagged web packets only
( 1 ~ 4095)
Reply tagged packets with the configured tag
Notes:
1. No matter how management VLAN is configured, login password authentication is still
required.
2. Default [Management VLAN - VID] is equal to zero. It is allowed to access the device from
any untagged PC web browser.
3. Most of the PCs are tag-incapable for LAN access. Be sure the rules are followed before
setting [Management VLAN - VID] not equal to zero.