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