3622ea8cb5
- use -A (append) instead of -I (insert) This makes shure the rule order is correct. This fixes #421. - use uci to determine the correct wan interface This is the reason, why #421 was only on wr1043. Now the firewall rule applies to all router. - remove old and not used rules Signed-off-by: Tim Niemeyer <tim.niemeyer@mastersword.de>
11 lines
410 B
Bash
Executable file
11 lines
410 B
Bash
Executable file
#!/bin/sh
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#solves MTU problem with bad ISP´s
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iptables -A FORWARD -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
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# Wenn ein router direkt am Netz hängt, ist er auch ssh Angriffen ausgesetzt.
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# Das wirkt bei kleinen Geräten wir ein DOS
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WAN=$(uci get network.wan.ifname)
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iptables -A INPUT -i $WAN -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
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iptables -A INPUT -i $WAN -j REJECT
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