ICR-1601
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2. 255.255.255.0 (/24) is
set by default
Select the subnet mask for this gateway from the dropdown list.
Subnet mask defines how many clients are allowed in one network or
subnet. The default subnet mask is 255.255.255.0 (/24), and it means
maximum 254 IP addresses are allowed in this subnet. However, one of
them is occupied by LAN IP address of this gateway, so there are maximum
253 clients allowed in LAN network.
Value Range: 255.0.0.0 (/8) ~ 255.255.255.255 (/32).
Click the Save button to save the configuration
2.2.2 VLAN
VLAN (Virtual LAN) is a logical network under a certain switch or router device to group client hosts
with a specific VLAN ID. This gateway supports both Port-based VLAN and Tag-based VLAN. These functions
allow you to divide local network into different “virtual LANs”. It is common requirement for some
application scenario. For example, there are various departments within SMB. All client hosts in the same
department should own common access privilege and QoS property. You can assign departments either by
port-based VLAN or tag-based VLAN as a group, and then configure it by your plan. In some cases, ISP may
need router to support “VLAN tag” for certain kinds of services (e.g. IPTV). You can group all devices
required this service as one tag-based VLAN.
Port-based VLAN
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 can be allocated for a 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. In bridge mode, Intranet packet flow
is delivered out WAN trunk port with VLAN tag to upper link for different services.
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