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openwrt/package/network/config/firewall/files/firewall.config

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firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
config defaults
option syn_flood 1
option input ACCEPT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1
config zone
option name lan
firewall3: use list notation for default zone network config to avoid "uci add_list" coercing the value wrongly SVN-Revision: 36806
2013-05-31 13:23:23 +00:00
list network 'lan'
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
option input ACCEPT
option output ACCEPT
firewall: allow routed lan<->lan traffic by default SVN-Revision: 37171
2013-07-04 18:10:36 +00:00
option forward ACCEPT
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
config zone
option name wan
firewall3: use list notation for default zone network config to avoid "uci add_list" coercing the value wrongly SVN-Revision: 36806
2013-05-31 13:23:23 +00:00
list network 'wan'
list network 'wan6'
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1
config forwarding
option src lan
option dest wan
# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4
# Allow IPv4 ping
config rule
option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT
firewall: Allow IGMP and MLD input on WAN The WAN port should at least respond to IGMP and MLD queries as otherwise a snooping bridge/switch might drop traffic. RFC4890 recommends to leave IGMP and MLD unfiltered as they are always link-scoped anyways. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> SVN-Revision: 45613
2015-05-05 13:22:41 +00:00
config rule
option name Allow-IGMP
option src wan
option proto igmp
option family ipv4
option target ACCEPT
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
# Allow DHCPv6 replies
firewall: config: remove restictions on DHCPv6 allow rule Remove restrictions on source and destination addresses, which aren't specified on RFC8415, and for some reason in openwrt are configured to allow both link-local and ULA addresses. As cleared out in issue #5066 there are some ISPs that use Gloabal Unicast addresses, so fix this rule to allow them. Fixes: #5066 Signed-off-by: Tiago Gaspar <tiagogaspar8@gmail.com> [rebase onto firewall3, clarify subject, bump PKG_RELEASE] Signed-off-by: Jo-Philipp Wich <jo@mein.io>
2022-05-04 09:36:07 +00:00
# see https://github.com/openwrt/openwrt/issues/5066
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
config rule
option name Allow-DHCPv6
option src wan
option proto udp
option dest_port 546
option family ipv6
option target ACCEPT
firewall: Allow IGMP and MLD input on WAN The WAN port should at least respond to IGMP and MLD queries as otherwise a snooping bridge/switch might drop traffic. RFC4890 recommends to leave IGMP and MLD unfiltered as they are always link-scoped anyways. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue> SVN-Revision: 45613
2015-05-05 13:22:41 +00:00
config rule
option name Allow-MLD
option src wan
option proto icmp
option src_ip fe80::/10
list icmp_type '130/0'
list icmp_type '131/0'
list icmp_type '132/0'
list icmp_type '143/0'
option family ipv6
option target ACCEPT
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
# Allow essential incoming IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
list icmp_type router-solicitation
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
option limit 1000/sec
option family ipv6
option target ACCEPT
# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
option limit 1000/sec
option family ipv6
option target ACCEPT
firewall: document rules for IPSec ESP/ISAKMP with 'name' option These are recommended practices by REC-22 and REC-24 of RFC6092: "Recommended Simple Security Capabilities in Customer Premises Equipment (CPE) for Providing Residential IPv6 Internet Service" Fixes FS#640 Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2017-03-28 09:41:14 +00:00
config rule
option name Allow-IPSec-ESP
option src wan
option dest lan
option proto esp
option target ACCEPT
config rule
option name Allow-ISAKMP
option src wan
option dest lan
option dest_port 500
option proto udp
option target ACCEPT
firewall: add rule for traceroute support Running your firewall's "wan" zone in REJECT zone (1) exposes the presence of the router, (2) depending on the sophistication of fingerprinting tools might identify the OS and release running on the firewall which then identifies known vulnerabilities with it and (3) perhaps most importantly of all, your firewall can be used in a DDoS reflection attack with spoofed traffic generating ICMP Unreachables or TCP RST's to overwhelm a victim or saturate his link. This rule, when enabled, allows traceroute to work even when the default input policy of the firewall for the wan zone has been set to DROP. Signed-off-by: Philip Prindeville <philipp@redfish-solutions.com>
2020-04-28 00:52:51 +00:00
# allow interoperability with traceroute classic
# note that traceroute uses a fixed port range, and depends on getting
# back ICMP Unreachables. if we're operating in DROP mode, it won't
# work so we explicitly REJECT packets on these ports.
config rule
option name Support-UDP-Traceroute
option src wan
option dest_port 33434:33689
option proto udp
option family ipv4
option target REJECT
option enabled false
firewall3: add default config and firewall.user SVN-Revision: 35889
2013-03-05 13:45:09 +00:00
# include a file with users custom iptables rules
config include
option path /etc/firewall.user
### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip 192.168.45.2
# option dest wan
# option proto tcp
# option target REJECT
# block a specific mac on wan
#config rule
# option dest wan
# option src_mac 00:11:22:33:44:66
# option target REJECT
# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP
# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip 192.168.16.235
# option dest_port 80
# option proto tcp
# port redirect of remapped ssh port (22001) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp
### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 80
# option dest wan
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
# option target REJECT
#config redirect
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 1024
# option src_dport 80
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
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