diff --git a/bin/firewall-sosdg b/bin/firewall-sosdg
index 79370e2..b8ac58a 100755
--- a/bin/firewall-sosdg
+++ b/bin/firewall-sosdg
@@ -687,7 +687,7 @@ if [ $NAT ]; then
 			SNAT)
 				$IPTABLES -A POSTROUTING -t nat -s ${NAT_RULE[2]} -j SNAT \
 					-o ${NAT_RULE[3]} --to-source ${NAT_RULE[4]} 
-				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -s ${NAT_RULE[2]} -j ACCEPT
+				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -i ${NAT_RULE[1]} -s ${NAT_RULE[2]} -j ACCEPT
 				display_c DEFAULT "\t${GREEN}SNAT:${PURPLE}${NAT_RULE[1]}:${NAT_RULE[2]}${AQUA}->${BLUE}${NAT_RULE[3]}:${NAT_RULE[4]}"
 				if [[ ! "$INIF_EXISTS" =~ "${NAT_RULE[1]}:${NAT_RULE[2]}" ]]; then
 					$IPTABLES -A INPUT -p icmp --icmp-type time-exceeded -i ${NAT_RULE[1]} \
@@ -706,7 +706,7 @@ if [ $NAT ]; then
 					;;
 			MASQ)
 				$IPTABLES -A POSTROUTING -t nat -s ${NAT_RULE[2]} -j MASQUERADE -o ${NAT_RULE[3]}
-				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -s ${NAT_RULE[2]} -j ACCEPT
+				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -i ${NAT_RULE[1]} -s ${NAT_RULE[2]} -j ACCEPT
 				display_c DEFAULT "\t${GREEN}MASQ:${PURPLE}${NAT_RULE[2]}${AQUA}->${BLUE}${NAT_RULE[3]}"
 				if [[ ! "$INIF_EXISTS" =~ "${NAT_RULE[1]}:${NAT_RULE[2]}" ]]; then
 					$IPTABLES -A INPUT -p icmp --icmp-type time-exceeded -i ${NAT_RULE[1]} \
@@ -725,7 +725,7 @@ if [ $NAT ]; then
 					;;
 			NETMAP)
 				$IPTABLES -A PREROUTING -t nat -s ${NAT_RULE[2]} -j NETMAP --to ${NAT_RULE[4]}
-				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -s ${NAT_RULE[2]} -j ACCEPT
+				$IPTABLES -A FORWARD ${M_STATE} ${C_STATE} RELATED,ESTABLISHED -i ${NAT_RULE[1]} -s ${NAT_RULE[2]} -j ACCEPT
 				display_c DEFAULT "\t${GREEN}NETMAP:${PURPLE}${NAT_RULE[2]}${AQUA}->${BLUE}${NAT_RULE[4]}"
 				if [[ ! "$INIF_EXISTS" =~ "${NAT_RULE[1]}:${NAT_RULE[2]}" ]]; then
 					$IPTABLES -A INPUT -p icmp --icmp-type time-exceeded -i ${NAT_RULE[1]} \