package/firewall/files/firewall.config

   1 config defaults
   2         option syn_flood        1
   3         option input            ACCEPT
   4         option output           ACCEPT
   5         option forward          REJECT
   6 # Uncomment this line to disable ipv6 rules
   7 #       option disable_ipv6     1
   8
   9 config zone
  10         option name             lan
  11         option network          'lan'
  12         option input            ACCEPT
  13         option output           ACCEPT
  14         option forward          REJECT
  15
  16 config zone
  17         option name             wan
  18         option network          'wan'
  19         option input            REJECT
  20         option output           ACCEPT
  21         option forward          REJECT
  22         option masq             1
  23         option mtu_fix          1
  24
  25 config forwarding
  26         option src              lan
  27         option dest             wan
  28
  29 # We need to accept udp packets on port 68,
  30 # see https://dev.openwrt.org/ticket/4108
  31 config rule
  32         option src              wan
  33         option proto            udp
  34         option dest_port        68
  35         option target           ACCEPT
  36         option family           ipv4
  37
  38 # Allow IPv4 ping
  39 config rule
  40         option src              wan
  41         option proto            icmp
  42         option icmp_type        echo-request
  43         option family           ipv4
  44         option target           ACCEPT
  45
  46 # Allow essential incoming IPv6 ICMP traffic
  47 config rule
  48         option src              wan
  49         option dest             *
  50         option proto            icmp
  51         list icmp_type          echo-request
  52         list icmp_type          destination-unreachable
  53         list icmp_type          packet-too-big
  54         list icmp_type          time-exceeded
  55         list icmp_type          bad-header
  56         list icmp_type          unknown-header-type
  57         option limit            1000/sec
  58         option family           ipv6
  59         option target           ACCEPT
  60
  61 # include a file with users custom iptables rules
  62 config include
  63         option path /etc/firewall.user
  64
  65
  66 ### EXAMPLE CONFIG SECTIONS
  67 # do not allow a specific ip to access wan
  68 #config rule
  69 #       option src              lan
  70 #       option src_ip   192.168.45.2
  71 #       option dest             wan
  72 #       option proto    tcp
  73 #       option target   REJECT
  74
  75 # block a specific mac on wan
  76 #config rule
  77 #       option dest             wan
  78 #       option src_mac  00:11:22:33:44:66
  79 #       option target   REJECT
  80
  81 # block incoming ICMP traffic on a zone
  82 #config rule
  83 #       option src              lan
  84 #       option proto    ICMP
  85 #       option target   DROP
  86
  87 # port redirect port coming in on wan to lan
  88 #config redirect
  89 #       option src                      wan
  90 #       option src_dport        80
  91 #       option dest                     lan
  92 #       option dest_ip          192.168.16.235
  93 #       option dest_port        80
  94 #       option proto            tcp
  95
  96 # port redirect of remapped ssh port (22001) on wan
  97 #config redirect
  98 #       option src              wan
  99 #       option src_dport        22001
 100 #       option dest             lan
 101 #       option dest_port        22
 102 #       option proto            tcp
 103
 104 # allow IPsec/ESP and ISAKMP passthrough
 105 #config rule
 106 #       option src              wan
 107 #       option dest             lan
 108 #       option protocol         esp
 109 #       option target           ACCEPT
 110
 111 #config rule
 112 #       option src              wan
 113 #       option dest             lan
 114 #       option src_port         500
 115 #       option dest_port        500
 116 #       option proto            udp
 117 #       option target           ACCEPT
 118
 119 ### FULL CONFIG SECTIONS
 120 #config rule
 121 #       option src              lan
 122 #       option src_ip   192.168.45.2
 123 #       option src_mac  00:11:22:33:44:55
 124 #       option src_port 80
 125 #       option dest             wan
 126 #       option dest_ip  194.25.2.129
 127 #       option dest_port        120
 128 #       option proto    tcp
 129 #       option target   REJECT
 130
 131 #config redirect
 132 #       option src              lan
 133 #       option src_ip   192.168.45.2
 134 #       option src_mac  00:11:22:33:44:55
 135 #       option src_port         1024
 136 #       option src_dport        80
 137 #       option dest_ip  194.25.2.129
 138 #       option dest_port        120
 139 #       option proto    tcp