net.ipv4.neigh.default.gc_thresh3 = 2048
net.ipv4.neigh.default.gc_thresh2 = 1024
net.ipv4.neigh.default.gc_thresh1 = 32
net.ipv4.neigh.default.gc_interval = 30
net.ipv4.neigh.default.proxy_qlen = 96
net.ipv4.neigh.default.unres_qlen = 6

net.ipv4.tcp_rmem = "8192 87380 16777216"
net.ipv4.tcp_wmem = "8192 65536 16777216"

net.ipv4.tcp_max_orphans = 16384
net.ipv4.tcp_orphan_retries = 0

net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_window_scaling = 1

net.ipv4.tcp_fastopen = 3
net.ipv4.tcp_slow_start_after_idle = 0

net.ipv4.tcp_syncookies = 1

net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_rfc1337=1
net.ipv4.tcp_max_tw_buckets=1440000
net.ipv4.conf.default.rp_filter=1
net.ipv4.conf.all.rp_filter=1
net.ipv4.tcp_ecn=1

net.ipv4.conf.all.accept_redirects=0
net.ipv4.conf.default.accept_redirects=0
net.ipv4.conf.all.secure_redirects=0
net.ipv4.conf.default.secure_redirects=0
net.ipv4.conf.all.send_redirects=0
net.ipv4.conf.default.send_redirects=0
net.ipv4.icmp_echo_ignore_all=1
net.ipv4.route.flush=1

net.ipv6.conf.all.accept_redirects=0
net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default.accept_redirects=0
net.ipv6.conf.default.disable_ipv6=1
net.ipv6.route.flush=1

net.unix.max_dgram_qlen=50