Network related for MacOS X

network_related.sh

# Display all network's Destination, Gateway, Flags, and Netif Expire
netstat -nr

# Block the traffic
sudo route -n add -net 192.168.68.197 0.0.0.0

# Enable the traffic
sudo route -n delete -net 192.168.68.197 0.0.0.0

# Forward 80 to 8888
sudo ipfw add 100 fwd 127.0.0.1,8888 tcp from any to any 80 in

# Port Forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward

iptables -F
iptables -t nat -F
iptables -X
iptables -t nat -A PREROUTING -p tcp --dport 11216 -j DNAT --to-destination 10.8.8.14:11216
iptables -t nat -A POSTROUTING -p tcp -d 10.8.8.14 --dport 11216 -j SNAT --to-source 54.238.95.185

# Delete POSTROUTING in iptables
iptables -t nat -D POSTROUTING 1