gluon-packages/gluon/gluon-next-node/generate/lib/gluon/ebtables/250-next-node

rule FORWARD --logical-out br-freifunk -o bat0 -d @next_node.mac@ -j DROP
rule OUTPUT --logical-out br-freifunk -o bat0 -d @next_node.mac@ -j DROP
rule FORWARD --logical-out br-freifunk -o bat0 -s @next_node.mac@ -j DROP
rule OUTPUT --logical-out br-freifunk -o bat0 -s @next_node.mac@ -j DROP