14 echo -n 'Additional IP options:'
15 case ${log_in_vain} in
25 echo " invalid log_in_vain setting: ${log_in_vain}"
30 [ "${log_in_vain}" -ne 0 ] && (
31 echo -n " log_in_vain=${log_in_vain}"
32 sysctl net.inet.tcp.log_in_vain="${log_in_vain}" >/dev/null
33 sysctl net.inet.udp.log_in_vain="${log_in_vain}" >/dev/null
36 case ${tcp_extensions} in
40 echo -n ' tcp extensions=NO'
41 sysctl net.inet.tcp.rfc1323=0 >/dev/null
45 case ${tcp_keepalive} in
47 echo -n ' TCP keepalive=NO'
48 sysctl net.inet.tcp.always_keepalive=0 >/dev/null
52 case ${tcp_drop_synfin} in
54 echo -n ' drop SYN+FIN packets=YES'
55 sysctl net.inet.tcp.drop_synfin=1 >/dev/null
59 case ${ip_portrange_first} in
63 echo -n " ip_portrange_first=$ip_portrange_first"
64 sysctl net.inet.ip.portrange.first=$ip_portrange_first >/dev/null
68 case ${ip_portrange_last} in
72 echo -n " ip_portrange_last=$ip_portrange_last"
73 sysctl net.inet.ip.portrange.last=$ip_portrange_last >/dev/null