D-Link DI-804V - Manual (Page 23)

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For the SEND option choosing the proper protocol by which you transmit
the data on the network.
For the RECEIVE option choosing the proper protocol by which the VPN
Internet Gateway receive the data on the network.
Filter Settings – LAN Filter Settings
LAN Filter Settings allow administrator to define whether local user has the
permission to access Internet. To activate this feature, check LAN Side Filter
Enabled. Then, you can define the filtering policy by entering an IP address
range, network port number and select the protocol(s).
For example, to prevent the local user of IP address range (from 101 to 200)
to access port 80 (HTTP), the settings are as follows,
LAN Side Filter Enabled: Enabled
Default LAN Side Filter: Pass
Filter: Block
Protocol: TCP
IP Address Range: 101 ~ 200
Destination Port Range: 80 ~ 80 (HTTP)