# Erlaube nur Router-Advertisment von BATMAN -> KNOTEN
ebtables -A INPUT -p IPv6 --ip6-proto ipv6-icmp --ip6-icmp-type router-advertisement -j IN_ONLY

# Verbiete Router-Solicitation von BATMAN -> KNOTEN
ebtables -A INPUT -p IPv6 -i bat0 --ip6-proto ipv6-icmp --ip6-icmp-type router-solicitation -j DROP

# Erlaube nur Router-Solicitation von KNOTEN -> BATMAN
ebtables -A OUTPUT -p IPv6 --ip6-proto ipv6-icmp --ip6-icmp-type router-solicitation -j OUT_ONLY

# Verbiete Router-Advertisment von KNOTEN -> BATMAN
ebtables -A OUTPUT -p IPv6 -o bat0 --ip6-proto ipv6-icmp --ip6-icmp-type router-advertisement -j DROP