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OpenWrt map-e (JPNE v6plus) において、割当ポート240個をちゃんと使わせるための設定。
## /etc/firewall.user
# This file is interpreted as shell script.
# Put your custom iptables rules here, they will
# be executed with each firewall (re-)start.
# Internal uci firewall chains are flushed and recreated on reload, so
# put custom rules into the root chains e.g. INPUT or FORWARD or into the
# special user chains, e.g. input_wan_rule or postrouting_lan_rule.
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 0 -j MARK --set-mark 10
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 1 -j MARK --set-mark 11
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 2 -j MARK --set-mark 12
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 3 -j MARK --set-mark 13
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 4 -j MARK --set-mark 14
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 5 -j MARK --set-mark 15
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 6 -j MARK --set-mark 16
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 7 -j MARK --set-mark 17
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 8 -j MARK --set-mark 18
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 9 -j MARK --set-mark 19
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 10 -j MARK --set-mark 20
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 11 -j MARK --set-mark 21
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 12 -j MARK --set-mark 22
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 13 -j MARK --set-mark 23
iptables -t nat -A PREROUTING -m statistic --mode nth --every 15 --packet 14 -j MARK --set-mark 24
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 0 -j MARK --set-mark 10
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 1 -j MARK --set-mark 11
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 2 -j MARK --set-mark 12
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 3 -j MARK --set-mark 13
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 4 -j MARK --set-mark 14
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 5 -j MARK --set-mark 15
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 6 -j MARK --set-mark 16
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 7 -j MARK --set-mark 17
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 8 -j MARK --set-mark 18
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 9 -j MARK --set-mark 19
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 10 -j MARK --set-mark 20
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 11 -j MARK --set-mark 21
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 12 -j MARK --set-mark 22
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 13 -j MARK --set-mark 23
iptables -t nat -A OUTPUT -m statistic --mode nth --every 15 --packet 14 -j MARK --set-mark 24
#$ diff -c /lib/netifd/proto/map.sh.orig /lib/netifd/proto/map.sh
*** /lib/netifd/proto/map.sh.orig 2017-05-30 02:45:19.000000000 +0900
--- /lib/netifd/proto/map.sh 2017-05-30 02:45:18.000000000 +0900
***************
*** 135,140 ****
--- 135,141 ----
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
json_close_object
else
+ local mark=10
for portset in $(eval "echo \$RULE_${k}_PORTSETS"); do
for proto in icmp tcp udp; do
json_add_object ""
***************
*** 142,152 ****
--- 143,155 ----
json_add_string target SNAT
json_add_string family inet
json_add_string proto "$proto"
+ json_add_string mark "$mark"
json_add_boolean connlimit_ports 1
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
json_add_string snat_port "$portset"
json_close_object
done
+ mark=`expr $mark + 1`
done
fi
if [ "$type" = "map-t" ]; then
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