The FreeBSD Diary
Providing practical examples since 1998
NAT
Adding ipnat to FreeBSD 3.*
ADSL – changing the modem
Getting DCC to work with natd
NAT rules – for IP Filter
Adding a second network card (and compiling a kernel)
getting natd to run again
The DNS problem which was an natd problem
natd Network Address Translation (IP masquerading, IP aliasing)