net.ipv4.netfilter.ip_conntrack_tcp_timeout_established=3600
net.ipv4.netfilter.ip_conntrack_udp_timeout=60
net.ipv4.netfilter.ip_conntrack_udp_timeout_stream=180
-# net.ipv6.conf.all.forwarding=1
+net.ipv6.conf.all.forwarding=1
# disable bridge firewalling by default
net.bridge.bridge-nf-call-arptables=0