UPnP is disabled by default and may be turned on through the administrative panel, and both static and triggered port forwarding is available. Static port forwarding is available for up to 20 single ports (with separate public and private port settings) and 20 port ranges, with either TCP or UDP (or both). Triggered port forwarding allows for up to 19 port ranges (TCP, UDP, or both) to be forwarded.
The device logs system events and security events separately, making it very easy to differentiate between the two. Logs may also be cleared or saved, though they may not be emailed, and generated alerts may not be emailed to an administrator. One bit of complication with the logging feature is the fact that logged events are added to the bottom of the window, making the user scroll down in order to view the most recent events.
Port and content filtering are also available on the router. Internet access can be allowed or denied for up to 20 MAC addresses, and port access can be specified for up to 20 IP addresses (both without any settable constraints for access times). Internet content can be filtered based on 20 keywords, which is similarly not time-enabled.
Finally, the BR-6104K includes a number of additional features such as the ability to act as a dynamic DNS client (for a number of different dynamic DNS providers), support for the 802.1d Spanning Tree network protocol, and a feature to view WAN/LAN packet transmission statistics.