sudo su
iptables -t nat -A POSTROUTING -s 172.16.16.0/24 -d 255.255.255.255 -j RETURN
iptables -t nat -A POSTROUTING -s 172.16.16.0/24 -d base-address.mcast.net/24 -j RETURN
iptables -t nat -A POSTROUTING -s 172.16.16.0/24 ! -d 172.16.16.0/24 -j MASQUERADE --to-ports 1024-65525 -p udp -m masq ports
iptables -t nat -A POSTROUTING -s 172.16.16.0/24 ! -d 172.16.16.0/24 -j MASQUERADE --to-ports 1024-65535 -p tcp
iptables -t nat -A POSTROUTING -s 172.16.16.0/24 ! -d 172.16.16.0/24 -j MASQUERADE
iptables -A FORWARD -d 172.16.16.0/24 -m conntrack --ctstate=RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -s 172.16.16.0/24 -j ACCEPT