Billion BiPAC 7820NZ User Manual page 77

all incoming packets by default will be dropped, and the user on the specified LAN group interface
can't access CPE anymore. But, you can still access the internet service. If user wants to manage
the CPE, please turn to
packets by default will be dropped if the LAN side firewall is enabled and user cannot manage this
CPE from the specified LAN group.
DHCP Server
You can disable or enable the DHCP (Dynamic Host Configuration Protocol) server or enable the
router's DHCP relay functions. The DHCP protocol allows your router to dynamically assign IP
addresses to PCs on your network if they are configured to obtain IP addresses automatically.
 Disable
Disable the DHCP Server function.
 Enable
Enable the DHCP function, enter the information wanted. Here as default.
Start IP Address: The start IP address of the range the DHCP Server used to assign to the Clients.
End IP Address: The end IP address f the range the DHCP Server used to assign to the Clients.
Leased Time (hour): The leased time for each DHCP Client.
Option 66: Click Enable to activate DHCP option 66 for some special devices, like IPTV Set Box.
The devices can get firmware or some special service from the TFTP server. User needs to set the
IP or hostname of the TFTP server.
User Router's setting as DNS server: Select whether to enable use router's setting as DNS server
to allow different LAN group with different DNS server settings.
If enabled, the PCs on the LAN side obtain the router's setting as DNS server. If disabled, please
specify exactly the primary/secondary DNS server.
Primary/Secondary DNS server: Specify your primary/secondary DNS server for your LAN devices.
 DHCP Server Relay
DHCP Server IP Address: Please enter the DHCP Server IP address.
IP Filtering Incoming to add the allowing rules.
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that all incoming
Note