How to enable Android Ip forwarding In linux we can,

# echo 1 &gt; /proc/sys/net/ipv4/ip_forward


or,

# sysctl -w net.ipv4.ip_forward=1



There is no sysctl command nor /proc/sys/net/ipv4/ip_forward file in Android. Is there an equivalent operation in Android?
This method worked for me, I just setup android as proxy server and need enable forwarding 

Use ROOT explorer and EDIT this file: /proc/sys/net/ipv4/ip_forward

add this syntax:

iptables -F -t filter

iptables -P FORWARD ACCEPT 


if that file not found, try install busybox first.. but I guess that file by default is available on android system.