Proroute GEM420 4G M2M Router
GEM420 User Manual
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There are some common VLAN scenarios as follows:
Port-Based VLAN Tagging for Differentiated Services
Port-based VLAN function can group Ethernet ports, Port-1 ~ Port-4, and WiFi Virtual
Access Points, VAP-1 ~ VAP-8, together for differentiated services like Internet
surfing, multimedia enjoyment, VoIP talking, and so on. Two operation modes, NAT
and Bridge, can be applied to each VLAN group. One DHCP server is allocated for an
NAT VLAN group to let group host member get its IP address. Thus, each host can
surf Internet via the NAT mechanism of business access gateway. At bridge mode,
Intranet packet flow was delivered out WAN trunk port with VLAN tag to upper link for
different services.
A port-based VLAN is a group of ports on an Ethernet or Virtual APs of Wired or
Wireless Gateway that form a logical Ethernet segment. Following is an example. In
SMB or a company, administrator schemes out 4 segments, Lobby, Lab & Servers,
Office and VoIP & IPTV. In a Wireless Gateway, administrator can configure Lobby
segment with VLAN ID 4. The VLAN group includes Port-4 and VAP-8 (SSID: Guest)
with NAT mode and DHCP-3 server equipped. He also configure Lab & Servers
segment with VLAN ID 3. The VLAN group includes Port-3 with NAT mode and
DHCP-2 server equipped. However, he configure Office segment with VLAN ID 2.
The VLAN group includes Port-2 and VAP-1 (SSID: Staff) with NAT mode and
DHCP-1 server equipped. At last, administrator also configure VoIP & IPTV segment
with VLAN ID 11. The VLAN group includes Port-1 with bridge mode to WAN interface
as shown at following diagram.