Открываем порты
OPEN_PORT=12312
OPEN_PORT_2=12313
LOCAL_CLIENT=192.168.1.100
LOCAL_CLIENT_2=192.168.1.101
#-----------------------------------------------
# Otkryvaem porty
################################################
iptables -t nat -I PREROUTING -p tcp --dport '${OPEN_PORT}' -i ppp0 -j DNAT --to-destination '${LOCAL_CLIENT}':'${OPEN_PORT}'
iptables -t nat -I PREROUTING -p udp --dport '${OPEN_PORT}' -i ppp0 -j DNAT --to-destination '${LOCAL_CLIENT}':'${OPEN_PORT}'
iptables -t nat -I PREROUTING -p tcp --dport '${OPEN_PORT_2}' -i ppp0 -j DNAT --to-destination '${LOCAL_CLIENT_2}':'${OPEN_PORT_2}'
iptables -t nat -I PREROUTING -p udp --dport '${OPEN_PORT_2}' -i ppp0 -j DNAT --to-destination '${LOCAL_CLIENT_2}':'${OPEN_PORT_2}'
#-----------------------------------------------