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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@211 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mbm
2005-02-06 00:52:16 +00:00
parent 4aba84e6f0
commit c31ac521e4
21 changed files with 1516 additions and 165 deletions
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23
target/default/target_skeleton/etc/init.d/S45firewall Executable file
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@@ -0,0 +1,23 @@
#!/bin/sh
. /etc/functions.sh
WAN=$(nvram get wan_ifname)
IPT=/usr/sbin/iptables
for T in filter nat mangle ; do
$IPT -t $T -F
$IPT -t $T -X
done
$IPT -t filter -A INPUT -m state --state INVALID -j DROP
$IPT -t filter -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPT -t filter -A INPUT -p icmp -j ACCEPT
$IPT -t filter -A INPUT -i $WAN -p tcp -j REJECT --reject-with tcp-reset
$IPT -t filter -A INPUT -i $WAN -j REJECT --reject-with icmp-port-unreachable
$IPT -t filter -A FORWARD -m state --state INVALID -j DROP
$IPT -t filter -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT
$IPT -t filter -A FORWARD -i $WAN -m state --state NEW,INVALID -j DROP
$IPT -t filter -A FORWARD -o $WAN -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
$IPT -t nat -A POSTROUTING -o $WAN -j MASQUERADE