4 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
5 m
() { printf "%s\n" "$*"; "$@"; }
6 gw
=$
(/usr
/sbin
/ip route |
sed -rn 's/^default via .* dev (\S+).*/\1/p')
10 m
/sbin
/iptables
-t nat
$cmd PREROUTING
-i $gw -p tcp
-m tcp
--dport $port -j DNAT
--to-destination 10.8.0.4:$port
11 # we could leave these on all the time but its convenient to do it here
13 m
/sbin
/iptables
$cmd FORWARD
-i tun
+ -o $gw -j ACCEPT
14 m
/sbin
/iptables
$cmd FORWARD
-i $gw -o tun
+ -j ACCEPT
20 do-forward
-A ${ports[@]}
23 do-forward
-D ${ports[@]}
26 echo "$0: error: expected 1 argument of start or stop"