User's Manual

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CIO Router: CR48NA User Manual
Revision: 1.3
4. Firewall
4.1. WAN Ping Respond
Select to Network -> Firewall -> General Settings to enable/disable WAN Ping Respond as shown in
Figure 10. Disable WAN Ping Respond is able to prevent the WAN port interfaces from responding to
ping/ICMP requests.
Figure 10: WAN ping response
4.2. Port Forwards
Select to Network -> Firewall -> Port Forwards as shown in Figure 11 to create inbound rules from the
WAN interfaces/Internet to your internal computers or devices for specific services/protocols such as a
WEB server, FTP server …. etc.
Figure 11: Port Forwards