User's Manual

4-/8-/16-/24-/32-Port SIP Internet Telephony Gateway
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Explanations of the parameters in VLAN interface:
VLAN1/VLAN2/VLAN3 The gateway supports three VLANs at most. Please enable VLAN according to actual needs.
Data/Voice/Management
，
If the checkboxes on the right of data, voice and management of VLAN1 are selected, it means
data messages, voice messages and management messages are subject to the network setting,
802.1Q VLAN1 ID and 802.1P Priority of VLAN1.
802.1Q VLAN ID(0-4095) Set an ID to identify a VLAN based on 802.1Q protocol.
802.1p Priority
（
0-7
）
Set the priority of a VLAN based on 802.1P protocol.
Network Setting
Set a DHCP IP address or static IP address for a VLAN, and set the IP address of the DNS server
used by the VLAN.
User needs to restart the gateway for the configurations to take effect.
3.5.3 DHCP Server (Route Mode for VGW-420FS/820FS)
When the gateway works in the route mode, it works as a small router and user can its DHCP service so
that the VGW-X20FS SERIES serves as a DHCP server in the network.
“Start address” and “end address” of the address pool determine the range of IP addresses which are
automatically assigned to other devices.
“IP Expire Time” means the service time of an assigned IP address. When the service time expires,
the IP address will no longer be valid.
The subnet mask, gateway, DNS and other information will be transferred to the network equipment
through the DHCP protocol.
Figure 3.7-4 DHCP Server Configuration Interface
When configuring the start IP address, end IP address, subnet mask and
gateway IP address, please set them in the same network segment with the
IP address of LAN port. Otherwise, other devices under the network will not
work normally after they get the IP address assigned by the DHCP server.
After the configurations are finished, please restart the VGW-X20FS SERIES
for the configurations to take effect.