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 name             Allow-DHCP-Renew
  33         option src              wan
  34         option proto            udp
  35         option dest_port        68
  36         option target           ACCEPT
  37         option family           ipv4
  38
  39 # Allow IPv4 ping
  40 config rule
  41         option name             Allow-Ping
  42         option src              wan
  43         option proto            icmp
  44         option icmp_type        echo-request
  45         option family           ipv4
  46         option target           ACCEPT
  47
  48 # Allow DHCPv6 replies
  49 # see https://dev.openwrt.org/ticket/10381
  50 config rule
  51         option name             Allow-DHCPv6
  52         option src              wan
  53         option proto            udp
  54         option src_ip           fe80::/10
  55         option src_port         547
  56         option dest_ip          fe80::/10
  57         option dest_port        546
  58         option family           ipv6
  59         option target           ACCEPT
  60
  61 # Allow essential incoming IPv6 ICMP traffic
  62 config rule
  63         option name             Allow-ICMPv6-Input
  64         option src              wan
  65         option proto    icmp
  66         list icmp_type          echo-request
  67         list icmp_type          destination-unreachable
  68         list icmp_type          packet-too-big
  69         list icmp_type          time-exceeded
  70         list icmp_type          bad-header
  71         list icmp_type          unknown-header-type
  72         list icmp_type          router-solicitation
  73         list icmp_type          neighbour-solicitation
  74         option limit            1000/sec
  75         option family           ipv6
  76         option target           ACCEPT
  77
  78 # Allow essential forwarded IPv6 ICMP traffic
  79 config rule
  80         option name             Allow-ICMPv6-Forward
  81         option src              wan
  82         option dest             *
  83         option proto            icmp
  84         list icmp_type          echo-request
  85         list icmp_type          destination-unreachable
  86         list icmp_type          packet-too-big
  87         list icmp_type          time-exceeded
  88         list icmp_type          bad-header
  89         list icmp_type          unknown-header-type
  90         option limit            1000/sec
  91         option family           ipv6
  92         option target           ACCEPT
  93
  94 # include a file with users custom iptables rules
  95 config include
  96         option path /etc/firewall.user
  97
  98
  99 ### EXAMPLE CONFIG SECTIONS
 100 # do not allow a specific ip to access wan
 101 #config rule
 102 #       option src              lan
 103 #       option src_ip   192.168.45.2
 104 #       option dest             wan
 105 #       option proto    tcp
 106 #       option target   REJECT
 107
 108 # block a specific mac on wan
 109 #config rule
 110 #       option dest             wan
 111 #       option src_mac  00:11:22:33:44:66
 112 #       option target   REJECT
 113
 114 # block incoming ICMP traffic on a zone
 115 #config rule
 116 #       option src              lan
 117 #       option proto    ICMP
 118 #       option target   DROP
 119
 120 # port redirect port coming in on wan to lan
 121 #config redirect
 122 #       option src                      wan
 123 #       option src_dport        80
 124 #       option dest                     lan
 125 #       option dest_ip          192.168.16.235
 126 #       option dest_port        80
 127 #       option proto            tcp
 128
 129 # port redirect of remapped ssh port (22001) on wan
 130 #config redirect
 131 #       option src              wan
 132 #       option src_dport        22001
 133 #       option dest             lan
 134 #       option dest_port        22
 135 #       option proto            tcp
 136
 137 # allow IPsec/ESP and ISAKMP passthrough
 138 #config rule
 139 #       option src              wan
 140 #       option dest             lan
 141 #       option protocol         esp
 142 #       option target           ACCEPT
 143
 144 #config rule
 145 #       option src              wan
 146 #       option dest             lan
 147 #       option src_port         500
 148 #       option dest_port        500
 149 #       option proto            udp
 150 #       option target           ACCEPT
 151
 152 ### FULL CONFIG SECTIONS
 153 #config rule
 154 #       option src              lan
 155 #       option src_ip   192.168.45.2
 156 #       option src_mac  00:11:22:33:44:55
 157 #       option src_port 80
 158 #       option dest             wan
 159 #       option dest_ip  194.25.2.129
 160 #       option dest_port        120
 161 #       option proto    tcp
 162 #       option target   REJECT
 163
 164 #config redirect
 165 #       option src              lan
 166 #       option src_ip   192.168.45.2
 167 #       option src_mac  00:11:22:33:44:55
 168 #       option src_port         1024
 169 #       option src_dport        80
 170 #       option dest_ip  194.25.2.129
 171 #       option dest_port        120
 172 #       option proto    tcp