Update iptables_fwd_2_intf.sh

Author: urao

VirtualNetwork/ExternalVN/iptables_fwd_2_intf.sh

@@ -11,9 +11,8 @@ iptables -F
 iptables -X
 
 echo 'Enabling forward and masquerading to all ens3f1 to ens3f0 interface for data traffic'
-iptables -A FORWARD -i $LANIF -o $WANIF -m state --state RELATED,ESTABLISHED -j ACCEPT
-iptables -A FORWARD -i $LANIF -o $WANIF -j ACCEPT
-iptables -t nat -A POSTROUTING -o $LANIF -j MASQUERADE
+iptables --tables nat --append POSTROUTING --out-interface $WANIF -j MASQUERADE
+iptables --append FORWARD --in-interface $LANIF -j ACCEPT
 
 echo 'Done.'
 echo '\n'