Proroute
GEM
2M
4G
Router
GEM-2M series User Manual
46
1. Type
: Select “NAT” or “Bridge” to identify if the packets are directly bridged to the
WAN port or processed by NAT mechanism.
2. LAN VID
: Specify a VLAN identifier for this port. The ports with the same VID are
in the same VLAN group.
3. Tx TAG
: If Intranet packets need a
“VLAN Tag”
with them, please check the
checkbox of “Tx TAG”.
4. DHCP Server
: When "NAT" type, you can specify a DHCP server for the
configuring VLAN. Since the device has only one Ethernet port, it provides only 1
DHCP server to serve the DHCP requests from the only one VLAN group.
5. WAN VID
: The VLAN Tag ID that come from the ISP service. For NAT type VLAN,
no WAN VLAN tag is allowed and the value is forced to “0”; For Bridge type VLAN,
You have to specify the VLAN Tag value that is provided by your ISP.
Afterwards, click on “Save” to store your settings or click “Undo” to give up the
changes.
3.1.2.2.3 Tag-Based
VLAN
The second type of VLAN is the tag-based VLAN. VLAN membership in a tagged
VLAN is determined by VLAN information within the packet frames that are received
on a port. This differs from a port-based VLAN, where the port ID with different VLAN
ID determine VLAN membership.
When the device receives a frame with a VLAN tag, referred to as a tagged frame, the
device forwards the frame only to those ports that share the same VID.
