echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward        
iptables -t nat -A POSTROUTING -s 10.61.15.0/24 -j MASQUERADE
iptables -P FORWARD DROP 
iptables -A FORWARD -i br1 -o br0 -j ACCEPT
iptables -A FORWARD -i br0 -o br1 -j ACCEPT
#Redirections des ports pour accéder aux services de l'extérieur
#Ports WEB
iptables -t nat -A PREROUTING -p tcp -i br0 --dport 2505 -j DNAT --to-destination 10.61.15.26:22
#Ports SAMBA
iptables -t nat -A PREROUTING -p tcp -i br0 --dport 137 -j DNAT --to-destination 10.61.15.24:137
iptables -t nat -A PREROUTING -p tcp -i br0 --dport 138 -j DNAT --to-destination 10.61.15.24:138
iptables -t nat -A PREROUTING -p udp -i br0 --dport 137 -j DNAT --to-destination 10.61.15.24:137
iptables -t nat -A PREROUTING -p udp -i br0 --dport 138 -j DNAT --to-destination 10.61.15.24:138
iptables -t nat -A PREROUTING -p tcp -i br0 --dport 139 -j DNAT --to-destination 10.61.15.24:139
iptables -t nat -A PREROUTING -p tcp -i br0 --dport 445 -j DNAT --to-destination 10.61.15.24:445