Logging and other Features
Given the firewall features that D-Link packed into this thing, I was surprised at the logging capability that was included. D-Link stresses the parental control capabilities of the 604, but doesn't include logging of plain old network traffic, i.e. websites, FTP servers, etc. They log pretty much everything else, however, and you can view and clear the logs via the admin pages. The only way to save the logs is to manually email them (sorry, no scheduled emailing or "hack" email alerts), but since the log entries are limited (the oldest entries just roll off into oblivion), the entries you want may be gone by the time you remember to go get them.
Update 8/5/2002 - A helpful reader pointed out that the 604 automatically emails the log when it fills up, provided you fill in your SMTP server and email address info on the Status > Log > Log Settings page. The log holds a maximum of 200 entries (20 pages, 10 entries each).
Let's see, what else is there...?
- there's a real-time clock that automatically syncs up to an NTP server (you have to manually set your time zone and Daylight savings information)
- you can save and load the router's configuration to a file on your computer
- you can set the router to discard ping requests (disabled by default).
If you want your 604 to be invisible to port scanners, you'll want to click on the "Discard PING from WAN side" radio button on the Tools > Misc. screen.