# cd /usr/ports/net-mgmt/net-snmp4
# make
    :
System Contact Information (root@example.jp): [Administrator Mail Address]
    :
System Location (Unknown): Home Gateway Server
    :
Location to write logfile (/var/log/snmp.log): [RETURN]
    :
Location to write persistent information (/var/ucd-snmp): [RETURN]
    :
# make install
# cd work/ucd-snmp-4*
# cp EXAMPLE.conf /usr/local/etc/snmpd.conf
# cd ../..
# make clean