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