package/base-files/files/etc/sysctl.conf

   1 kernel.panic=3
   2 kernel.core_pattern=/tmp/%e.%t.%p.%s.core
   3
   4 net.ipv4.conf.default.arp_ignore=1
   5 net.ipv4.conf.all.arp_ignore=1
   6 net.ipv4.ip_forward=1
   7 net.ipv4.icmp_echo_ignore_broadcasts=1
   8 net.ipv4.icmp_ignore_bogus_error_responses=1
   9 net.ipv4.igmp_max_memberships=100
  10 net.ipv4.tcp_fin_timeout=30
  11 net.ipv4.tcp_keepalive_time=120
  12 net.ipv4.tcp_syncookies=1
  13 net.ipv4.tcp_timestamps=1
  14 net.ipv4.tcp_sack=1
  15 net.ipv4.tcp_dsack=1
  16
  17 net.ipv6.conf.default.forwarding=1
  18 net.ipv6.conf.all.forwarding=1
  19
  20 net.netfilter.nf_conntrack_acct=1
  21 net.netfilter.nf_conntrack_checksum=0
  22 net.netfilter.nf_conntrack_max=16384
  23 net.netfilter.nf_conntrack_tcp_timeout_established=7440
  24 net.netfilter.nf_conntrack_udp_timeout=60
  25 net.netfilter.nf_conntrack_udp_timeout_stream=180
  26
  27 # disable bridge firewalling by default
  28 net.bridge.bridge-nf-call-arptables=0
  29 net.bridge.bridge-nf-call-ip6tables=0
  30 net.bridge.bridge-nf-call-iptables=0