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- *filter
- # default policy is DROP
- -P INPUT DROP
- -P OUTPUT DROP
- -P FORWARD DROP
- # allow esp
- -A INPUT -i eth0 -p 50 -j ACCEPT
- -A OUTPUT -o eth0 -p 50 -j ACCEPT
- # allow IKE
- -A INPUT -i eth0 -p udp --sport 500 --dport 500 -j ACCEPT
- -A OUTPUT -o eth0 -p udp --dport 500 --sport 500 -j ACCEPT
- # allow MobIKE
- -A INPUT -i eth0 -p udp --sport 4500 --dport 4500 -j ACCEPT
- -A OUTPUT -o eth0 -p udp --dport 4500 --sport 4500 -j ACCEPT
- # allow last UDP fragment
- -A INPUT -i eth0 -p udp -m frag --fraglast -j ACCEPT
- # allow ICMPv6 neighbor-solicitations
- -A INPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
- -A OUTPUT -p icmpv6 --icmpv6-type neighbor-solicitation -j ACCEPT
- # allow ICMPv6 neighbor-advertisements
- -A INPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
- -A OUTPUT -p icmpv6 --icmpv6-type neighbor-advertisement -j ACCEPT
- # allow crl and certificate fetch from winnetou
- -A INPUT -i eth0 -p tcp --sport 80 -s fec0::15 -j ACCEPT
- -A OUTPUT -o eth0 -p tcp --dport 80 -d fec0::15 -j ACCEPT
- # log dropped packets
- -A INPUT -j LOG --log-prefix " IN: "
- -A OUTPUT -j LOG --log-prefix " OUT: "
- COMMIT
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