The machine I redirected telnet too has changed IP addresses... And; I discovered after simply changing my natd_flags in /etc/rc.conf that natd isn't properly redirecting the port. I checked the messages log (/var/log/alias.log) and nothing appears to be amiss. (And, I've got -l on the natd_flags; but nothing is showing up in syslog) Here's the flags (this is 4.3-RELEASE): natd_flags="-l -m -u -redirect_port tcp 10.1.0.11:telnet NNNN -redirect_port udp 10.1.0.11:telnet NNNN -redirect_port tcp 10.1.0.26:telnet NNNN -redirect_port u dp 10.1.0.26:telnet NNNN" (The previous/working IP addreses were 10.0.0.11 & 10.0.0.26.) So - per the subject - just how does one start debugging a problem like this - what tools are around to try and figure things out? - Thanks! - - Dave Rivers - To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message