Instructions for SNMP-enabling your FreeBSD box

Install Net-SNMP with

# cd /usr/ports/net-mgmnt/net-snmp
# make
# make install

edit /etc/rc.conf
add snmpd_enable="YES"

cd /usr/local/share/snmp
edit snmpd.conf (you may have to create it)
add the following
syslocation home (replace home with whatever you'd like)
syscontact me@here.com (put in your e-mail or whatever)
rocommunity private (replace with whatever read only name you'd like)
rwcommunity public (again, change this to whatever you'd like)
master yes
now save and exit

cd /usr/local/etc/rc.d
./snmpd.sh start

This will get you up and running with a very basic snmp configuration. There's a handy utility called 'snmpconf' that can be run to help you generate the snmp.conf (optional) and snmpd.conf files. This will give you more options and help tighten up security.

at this point you should be able to snmpwalk your host
snmpwalk -v1 -c public 127.0.0.1

See http://www.net-snmp.org/tutorial/tutorial-5/commands/index.html for more info on how to use snmp do nifty things...like adding MIBS!