For services that don't work with the router's UPnP, static and triggered port forwarding are available for up to 16 single ports and 16 port ranges (UDP, TCP, or both), respectively. Static forwarding includes the ability to separately set internal and external ports, though this is not configurable with triggered forwarding.
ZSR0104CP's firewall options are fairly basic, and the router does not have the option to block WAN pings. It allows for up to 16 rules allowing or denying Internet access for IP and port ranges (with an option to control access based on time), and can filter up to 16 MAC addresses. The router also supports keyword-based content filtering that applies to all clients, and is not schedulable.
The rear view
System events and traffic are logged by the router (without syslog or SNMP trap logging), and the URLs of each of the hosts in the traffic logs are clearly identified. These logs may be cleared, but they may not be saved or emailed, and generated alerts cannot be emailed to an administrator.
The ZSR0104CP also includes a dynamic DNS client feature (limited to only dyndns.org), and is one of the few devices in this roundup that is capable of sending WakeOnLAN commands to hosts on the local network.
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