Zonet Technology ZSR0104C Series - Manual (Page 39)

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3. URL Filter
If you want to restrict your LAN clients from accessing certain websites, enter the keywords of the
websites in the blank. ZSR0104C SERIES will examine the packet information when receiving the
packet with port 80 from the WAN. If it finds the listed keywords, it will drop the packet and LAN
clients cannot obtain the information from the website. Check the URL filter Enable and click the
Apply button to make settings effective.
4. Port Filter
ZSR0104C SERIES Service Filter Firewall controls the LAN clients’ access to the Internet services
by specifying the port number of the service in the list.
A. Disable
Checked this item, the LAN client can access to all Internet services.
B. Blocking the following port
Checked this item, the LAN client cannot access to the following services.
For example, blocks port 21. The LAN client cannot access ftp in the Internet.
C. Forwarding the following port only