Planet Technology ADSL 2/2+ Router ADE4400v2 - Manual (Page 38)

3.6.1 LAN Configuration
Go to Interface Setup -> LAN. The 'LAN Settings' option enables you to configure
the LAN port.
If the DHCP Relay is selected, the DHCP requests from local PCs are forward to the
DHCP server runs on WAN side. To have this function working properly,
disable the NAT to run on router mode only, disable the DHCP server on the LAN
port, and make sure the routing table has the correct routing entry.
3.7.1 IP Filtering
Go to Access Management -> IP Filtering to block some packets form WAN.
The router provides extensive firewall protection by restricting connection parameters
to limit the risk of intrusion and defending against a wide array of
common hacker attacks.
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