net.ipv4.tcp_fin_timeout=30
net.ipv4.tcp_keepalive_time=120
net.ipv4.tcp_syncookies=1
-net.ipv4.tcp_timestamps=0
+net.ipv4.tcp_timestamps=1
+net.ipv4.tcp_sack=1
+net.ipv4.tcp_dsack=1
-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.default.forwarding=1
net.ipv6.conf.all.forwarding=1
net.netfilter.nf_conntrack_acct=1