15 if [ -z "${_netoptions_initdone}" ]; then
16 echo -n 'Additional TCP/IP options:'
17 _netoptions_initdone=yes
23 case ${log_in_vain} in
34 echo " invalid log_in_vain setting: ${log_in_vain}"
39 if [ "${log_in_vain}" -ne 0 ]; then
41 echo -n " log_in_vain=${log_in_vain}"
42 sysctl net.inet.tcp.log_in_vain="${log_in_vain}" >/dev/null
43 sysctl net.inet.udp.log_in_vain="${log_in_vain}" >/dev/null
46 case ${tcp_extensions} in
51 echo -n ' tcp extensions=NO'
52 sysctl net.inet.tcp.rfc1323=0 >/dev/null
56 case ${tcp_keepalive} in
59 echo -n ' TCP keepalive=NO'
60 sysctl net.inet.tcp.always_keepalive=0 >/dev/null
64 case ${tcp_drop_synfin} in
67 echo -n ' drop SYN+FIN packets=YES'
68 sysctl net.inet.tcp.drop_synfin=1 >/dev/null
72 case ${ip_portrange_first} in
77 echo -n " ip_portrange_first=$ip_portrange_first"
78 sysctl net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
82 case ${ip_portrange_last} in
87 echo -n " ip_portrange_last=$ip_portrange_last"
88 sysctl net.inet.ip.portrange.last=$ip_portrange_last >/dev/null
92 [ -n "${_netoptions_initdone}" ] && echo '.'