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cleanup login script, change firewall example

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@881 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mbm
2005-05-13 13:49:48 +00:00
parent 9867fb3338
commit dd755e947f
2 changed files with 25 additions and 26 deletions
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16
target/default/target_skeleton/etc/init.d/S45firewall
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@@ -1,7 +1,7 @@
#!/bin/sh
. /etc/functions.sh
export WAN=$(nvram get wan_ifname)
export LAN=$(nvram get lan_ifname)
WAN=$(nvram get wan_ifname)
LAN=$(nvram get lan_ifname)
## CLEAR TABLES
for T in filter nat mangle; do
@@ -17,8 +17,8 @@ iptables -t nat -N prerouting_rule
iptables -t nat -N postrouting_rule
### Port forwarding
# iptables -t nat -A prerouting_rule -p tcp --dport 22 -j DNAT --to 192.168.1.2
# iptables -A forwarding_rule -p tcp --dport 22 -d 192.168.1.2 -j ACCEPT
# iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 22 -j DNAT --to 192.168.1.2
# iptables -A forwarding_rule -i $WAN -p tcp --dport 22 -d 192.168.1.2 -j ACCEPT
### INPUT
### (connections with the router as destination)
@@ -27,12 +27,12 @@ iptables -t nat -N postrouting_rule
iptables -P INPUT DROP
iptables -A INPUT -m state --state INVALID -j DROP
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A INPUT -p tcp --syn --tcp-option \! 2 -j DROP
# allow
iptables -A INPUT -i \! $WAN -j ACCEPT # allow from lan/wifi interfaces
iptables -A INPUT -p icmp -j ACCEPT # allow ICMP
iptables -A INPUT -p 47 -j ACCEPT # allow GRE
iptables -A INPUT -p tcp --syn --tcp-option \! 2 -j DROP
iptables -A INPUT -i \! $WAN -j ACCEPT # allow from lan/wifi interfaces
iptables -A INPUT -p icmp -j ACCEPT # allow ICMP
iptables -A INPUT -p gre -j ACCEPT # allow GRE
#
# insert accept rule or to jump to new accept-check table here
#