diff --git a/common/ipt.sh b/common/ipt.sh
index 5e6184b..3e4be7d 100644
--- a/common/ipt.sh
+++ b/common/ipt.sh
@@ -112,6 +112,10 @@ unprepare_tpws_fw()
 	unprepare_tpws_fw4
 }
 
+ipt_mark_filter()
+{
+	[ -n "$FILTER_MARK" ] && echo "-m mark --mark $FILTER_MARK/$FILTER_MARK"
+}
 
 ipt_print_op()
 {
@@ -136,7 +140,7 @@ _fw_tpws4()
 
 		ipt_print_op $1 "$2" "tpws (port $3)"
 
-		rule="$2 $IPSET_EXCLUDE dst $IPBAN_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3"
+		rule="$(ipt_mark_filter) $2 $IPSET_EXCLUDE dst $IPBAN_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3"
 		for i in $4 ; do
 			ipt_add_del $1 PREROUTING -t nat -i $i $rule
 	 	done
@@ -164,7 +168,7 @@ _fw_tpws6()
 
 		ipt_print_op $1 "$2" "tpws (port $3)" 6
 
-		rule="$2 $IPSET_EXCLUDE6 dst $IPBAN_EXCLUDE6 dst"
+		rule="$(ipt_mark_filter) $2 $IPSET_EXCLUDE6 dst $IPBAN_EXCLUDE6 dst"
 		for i in $4 ; do
 			_dnat6_target $i DNAT6
 			[ -n "$DNAT6" -a "$DNAT6" != "-" ] && ipt6_add_del $1 PREROUTING -t nat -i $i $rule -j DNAT --to [$DNAT6]:$3
@@ -202,7 +206,7 @@ _fw_nfqws_post4()
 
 		ipt_print_op $1 "$2" "nfqws postrouting (qnum $3)"
 
-		rule="-m mark ! --mark $DESYNC_MARK/$DESYNC_MARK $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass"
+		rule="$(ipt_mark_filter) -m mark ! --mark $DESYNC_MARK/$DESYNC_MARK $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass"
 		if [ -n "$4" ] ; then
 			for i in $4; do
 				ipt_add_del $1 POSTROUTING -t mangle -o $i $rule
@@ -223,7 +227,7 @@ _fw_nfqws_post6()
 
 		ipt_print_op $1 "$2" "nfqws postrouting (qnum $3)" 6
 
-		rule="-m mark ! --mark $DESYNC_MARK/$DESYNC_MARK $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass"
+		rule="$(ipt_mark_filter) -m mark ! --mark $DESYNC_MARK/$DESYNC_MARK $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass"
 		if [ -n "$4" ] ; then
 			for i in $4; do
 				ipt6_add_del $1 POSTROUTING -t mangle -o $i $rule
diff --git a/common/nft.sh b/common/nft.sh
index d5b6c9b..57697c7 100644
--- a/common/nft.sh
+++ b/common/nft.sh
@@ -312,6 +312,10 @@ nft_filter_apply_ipset_target()
 	nft_filter_apply_ipset_target6 $2
 }
 
+nft_mark_filter()
+{
+	[ -n "$FILTER_MARK" ] && echo "mark and $FILTER_MARK != 0"
+}
 
 nft_script_add_ifset_element()
 {
@@ -403,9 +407,10 @@ _nft_fw_tpws4()
 
 	[ "$DISABLE_IPV4" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2"
+		local mark_filter=$(nft_mark_filter)
 		nft_print_op "$filter" "tpws (port $2)" 4
-		nft_insert_rule dnat_output skuid != $WS_USER ${3:+oifname @wanif }$filter ip daddr != @nozapret ip daddr != @ipban $FW_EXTRA_POST dnat ip to $TPWS_LOCALHOST4:$port
-		nft_insert_rule dnat_pre iifname @lanif $filter ip daddr != @nozapret ip daddr != @ipban $FW_EXTRA_POST dnat ip to $TPWS_LOCALHOST4:$port
+		nft_insert_rule dnat_output skuid != $WS_USER ${3:+oifname @wanif} $mark_filter $filter ip daddr != @nozapret ip daddr != @ipban $FW_EXTRA_POST dnat ip to $TPWS_LOCALHOST4:$port
+		nft_insert_rule dnat_pre iifname @lanif $mark_filter $filter ip daddr != @nozapret ip daddr != @ipban $FW_EXTRA_POST dnat ip to $TPWS_LOCALHOST4:$port
 		prepare_route_localnet
 	}
 }
@@ -418,10 +423,11 @@ _nft_fw_tpws6()
 
 	[ "$DISABLE_IPV6" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2" DNAT6 i
+		local mark_filter=$(nft_mark_filter)
 		nft_print_op "$filter" "tpws (port $port)" 6
-		nft_insert_rule dnat_output skuid != $WS_USER ${4:+oifname @wanif6 }$filter ip6 daddr != @nozapret6 ip6 daddr != @ipban6 $FW_EXTRA_POST dnat ip6 to [::1]:$port
+		nft_insert_rule dnat_output skuid != $WS_USER ${4:+oifname @wanif6} $mark_filter $filter ip6 daddr != @nozapret6 ip6 daddr != @ipban6 $FW_EXTRA_POST dnat ip6 to [::1]:$port
 		[ -n "$3" ] && {
-			nft_insert_rule dnat_pre $filter ip6 daddr != @nozapret6 ip6 daddr != @ipban6 $FW_EXTRA_POST dnat ip6 to iifname map @link_local:$port
+			nft_insert_rule dnat_pre $mark_filter $filter ip6 daddr != @nozapret6 ip6 daddr != @ipban6 $FW_EXTRA_POST dnat ip6 to iifname map @link_local:$port
 			for i in $3; do
 				_dnat6_target $i DNAT6
 				# can be multiple tpws processes on different ports
@@ -468,7 +474,7 @@ _nft_fw_nfqws_post4()
 	[ "$DISABLE_IPV4" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2" rule chain=$(get_postchain) setmark
 		nft_print_op "$filter" "nfqws postrouting (qnum $port)" 4
-		rule="${3:+oifname @wanif }$filter ip daddr != @nozapret"
+		rule="${3:+oifname @wanif} $(nft_mark_filter) $filter ip daddr != @nozapret"
 		is_postnat && setmark="meta mark set meta mark or $DESYNC_MARK_POSTNAT"
 		nft_insert_rule $chain $rule $setmark $CONNMARKER $FW_EXTRA_POST queue num $port bypass
 		nft_add_nfqws_flow_exempt_rule "$rule"
@@ -483,7 +489,7 @@ _nft_fw_nfqws_post6()
 	[ "$DISABLE_IPV6" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2" rule chain=$(get_postchain) setmark
 		nft_print_op "$filter" "nfqws postrouting (qnum $port)" 6
-		rule="${3:+oifname @wanif6 }$filter ip6 daddr != @nozapret6"
+		rule="${3:+oifname @wanif6} $(nft_mark_filter) $filter ip6 daddr != @nozapret6"
 		is_postnat && setmark="meta mark set meta mark or $DESYNC_MARK_POSTNAT"
 		nft_insert_rule $chain $rule $setmark $CONNMARKER $FW_EXTRA_POST queue num $port bypass
 		nft_add_nfqws_flow_exempt_rule "$rule"
@@ -508,7 +514,7 @@ _nft_fw_nfqws_pre4()
 	[ "$DISABLE_IPV4" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2" rule
 		nft_print_op "$filter" "nfqws prerouting (qnum $port)" 4
-		rule="${3:+iifname @wanif }$filter ip saddr != @nozapret"
+		rule="${3:+iifname @wanif} $filter ip saddr != @nozapret"
 		nft_insert_rule $(get_prechain) $rule $CONNMARKER $FW_EXTRA_POST queue num $port bypass
 	}
 }
@@ -521,7 +527,7 @@ _nft_fw_nfqws_pre6()
 	[ "$DISABLE_IPV6" = "1" -o -z "$1" ] || {
 		local filter="$1" port="$2" rule
 		nft_print_op "$filter" "nfqws prerouting (qnum $port)" 6
-		rule="${3:+iifname @wanif6 }$filter ip6 saddr != @nozapret6"
+		rule="${3:+iifname @wanif6} $filter ip6 saddr != @nozapret6"
 		nft_insert_rule $(get_prechain) $rule $CONNMARKER $FW_EXTRA_POST queue num $port bypass
 	}
 }
diff --git a/config.default b/config.default
index ac04997..4c7bf60 100644
--- a/config.default
+++ b/config.default
@@ -47,6 +47,12 @@ GZIP_LISTS=1
 DESYNC_MARK=0x40000000
 DESYNC_MARK_POSTNAT=0x20000000
 
+# do not pass outgoing traffic to tpws/nfqws not marked with this bit
+# this setting allows to write your own rules to limit traffic that should be fooled
+# for example based on source IP or incoming interface name
+# no filter if not defined
+#FILTER_MARK=0x10000000
+
 TPWS_SOCKS_ENABLE=0
 # tpws socks listens on this port on localhost and LAN interfaces
 TPPORT_SOCKS=987