net.ipv4.tcp_keepalive_time=120
net.ipv4.tcp_syncookies=1
net.ipv4.tcp_timestamps=0
-net.core.netdev_max_backlog=30
-net.netfilter.nf_conntrack_checksum=0
+
net.ipv4.netfilter.ip_conntrack_checksum=0
net.ipv4.netfilter.ip_conntrack_max=16384
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
+
+net.netfilter.nf_conntrack_checksum=0
+net.netfilter.nf_conntrack_max=16384
+net.netfilter.nf_conntrack_tcp_timeout_established=3600
+net.netfilter.nf_conntrack_udp_timeout=60
+net.netfilter.nf_conntrack_udp_timeout_stream=180
# disable bridge firewalling by default
net.bridge.bridge-nf-call-arptables=0