Openwrt firewall drop or reject. I don't understand why input traffic is rejected.

Openwrt firewall drop or reject. May 15, 2025 · understand that the default firewall settings do tha Nope, set wan input n forward to drop from reject You can tick "drop invalid" checkbox too. config rule option guest guest=> wan reject accept reject The change makes sense to my TCP/IP-knowledge lacking brain because part of the guide is to set up a firewall traffic rule to drop all traffic from guest to lan. In the spirit of sharing, I'll drop a little snippet here that others might May 1, 2016 · 2. These is the rule as it show in LUCI: Fowarded IPv4 and IPv6 From *lan*, MAC: XYZ To *wan* (Protocol any) Reject foward The device A has an update feature to fetch last release from github, so I try to get last update and it still was able to fetch it. 10. 1. Dec 27, 2013 · Hey there. I have this in /etc/config/firewall config rule opt Aug 25, 2023 · Hello I want to block internet on a network on time range. . Jul 16, 2020 · The original source for the firewall configuration file is in the firewall package source as firewall. If you don't have any such networks, you won't notice any difference between ACCEPT and REJECT. How to do this? I tried to disable the default accept rule config rule option name 'Allow-Ping' option src 'wan' option proto 'icmp' option icmp_type 'echo-request' option family 'ipv4' option target 'ACCEPT' option enabled '0' and changing to drop config rule option name 'Allow-Ping' option src 'wan' option proto 'icmp' option family 'ipv4' list icmp_type May 6, 2018 · I'm trying to setup a port forward, but I am really stuck. OpenWrt 처음 사용자나 linux 패킷 필터 도구 iptables에 대한 경험이 없이면 이게 뭔가 싶기도 하고 때에 따라서는 잘못된 설정으로 연결이 안되거나 굳이 Mar 7, 2023 · Hi there!, So I'm running a version of Openwrt 22. Here is my solution, A catch-all IPv6 traffic rule to block IPv6 inbound is done with: config rule option name 'DROP IPv6 >' option family 'ipv6' option dest 'lan' option target 'DROP' option src '*' For LuCI users, From ANY ZONE for option src '*' Of course, should you want to allow an IPv6 port to a Sep 10, 2022 · So, an update. Aug 24, 2023 · Switching the default wan forward rule from reject to drop solves all my issues! I also could stop the firewall under System > Startup and hat no more package loss when pinging. Would you enable it? Nov 18, 2024 · Hi. Which should you choose for optimal security? Feb 14, 2024 · Why don't I see the same drop/wan after all the other reject/wan/in? Do I need to modify the standard config or is all OK with this? Because all the other connections aren't active connections. Jun 17, 2016 · Hello, I'm trying to edit my firewall traffic rules to filter ip addresses. reject = let the remote station know that traffic is denied on target --> netcat is getting a value back. Jul 19, 2021 · I have an interface (192. In release 21. 3 on the Mochabin but im noticing something strange and I'm not sure if its a bug or a wrong configuration on my end. 02, there are 3 zones defined: lan, br-lan, and wan Nov 20, 2021 · It works good. 10 /etc/config/firewall config defaults option synflood_protect '1' option drop_invalid '1' option input 'ACCEPT' option output 'ACCEPT' option forward 'REJECT' . 0. 2 Likes meky1 Feb 4, 2025 · I'm having a bit of trouble with outgoing traffic from the router itself. gif), but the traffic still passes thru the router When I look at iptables rules (http://openwrt. How does the firewall zone settings work? I have searched the internet for a couple of weeks now. This is intra-zone forwarding. # 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. eu/iptables. root@OpenWrt:~# cat /etc/config/firewall config zone option name 'lan' option network 'lan' option input 'ACCEPT' option output 'ACCEPT' option forward 'REJECT' I had to change "option forward" to ACCEPT to be able to play Dec 27, 2020 · The networks I do monitor use protocol level monitoring. 1/24 inside server 0 static route on router 192. This is secure enough for essentially all normal purposes. If it is set to REJECT, then how can a web server on the Internet sends back the data when I make a request from lan zone? Aug 8, 2016 · Discover the key differences in packet filtering firewalls with our guide on reject versus drop. Masquering is not really a big know how so not sure how to go. By default, OpenWRT permits everything from LAN to WAN. When I check it the line is removed, but iptables rules don't change in either way. Suggestion: make DROP the default in next firmware update. You may want to use remote logging if you want extended logs kept. 1) and wireless (10. [/quote]Setting "input" policy as reject/drop sounds somehow possible, but setting "output" policy to drop/reject sounds rather eccentric. Create a new Forward rule and choose your source and destination zone (for my case, Source=lan and Destination=WAN) and click Add & Edit. I have an untrused IoT 1 config defaults 2 option syn_flood 1 3 option input REJECT 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 list network 'lan' 12 option input ACCEPT 13 option output ACCEPT 14 option forward ACCEPT 15 16 config zone 17 option name wan 18 list network 'wan' 19 list network 'wan6' 20 Sep 7, 2021 · For the IOT vlan/wifi I selected drop, accept, drop and the internet does still work. Remove the guest to lan rule, despite you setting it to reject, this will allow traffic from, to. (Last edited by zzz2002 on 22 Jan 2012, 21:35) The discussion might have continued from here. 88-2 and updated it as opkg. Dec 25, 2013 · Luci provides rather basic logging functionality for dropped/rejected packets under advanced settings for each firewall zone (eg WAN). Then there is the input Would you enable this firewall setting? In researching, I found some complaints that enabling does not properly update the iptables, but if the chain is correct, this was later fixed. edit: IPSet can help achieve things with DNS based lookups. Oct 15, 2021 · This Youtube description of the firewall settings in LuCI is very helpful; it helps to understand the zone logic of the GUI. I tested with config rule option target 'REJECT' option start_time '09:00:00' option stop_time '11:30:00' option name 'test' option src 'Tutu' option dest 'wan' list proto 'all The problem is that it does not block connections that are already open, for example Discord or Thunderbird continue to receive messages until they are closed Nov 21, 2013 · I have an Openwrt 10. But I have absolutely no clue which specific iptables strategy OpenWRT has. Yet it is disabled by default. OpenWrt's firewall management application firewall is mainly configured through /etc/config/firewall. The other thing you can do is group networks into a set of common zones. I do know how to do this by iptables in general, and I do know how to do this with the web gui. If a packet is marked as invalid, it means that not all packets of the handshake were tracked by the firewall. Go to the "General Settings" tab of the "Firewall" page. For intrazone traffic you can configure the FORWARD drop down menus. config. 130' option dest 'wan' option target 'REJECT' option start_time '22:15:00' option stop_time '07:00:00' and they seem to be basically working, but I've noticed that although new connections are blocked it seems that The only change I usually make with OpenWRT's firewall is to change the default firewall forwarding behavior from "reject" to "drop" so the packets are silently dropped. The WAN zone is set to Drop/Accept/Drop for Input/Output/Forward (see below) and all IPv4 port scans show a stealth response for all ports, meaning that the firewall dropped the inbound SYN request instead of responding by closing the Jan 29, 2016 · Topic: How to restrict access to web interface LUCI - Block port 80. e. Most consumers don't either. Hi! There is a router with OpenWRT installed There are such settings nftables (standard settings after install) table inet fw4 { chain input { type filter hook input priority filter; policy drop; iifname "lo" accept comment "!fw4: Accept traffic from loopback" ct state established,related accept comment "!fw4: Allow inbound established and related flows" ct state invalid drop comment "!fw4 Dec 14, 2024 · I setup a static route to allow connections to VM network on a server. It seems that the new firmware by default has IPTABLE FORWARD chain set to REJECT/BLOCK (whats a difference?). 0/24 --type ban --reason 'manual ban - email login' --duration 72h However exim reject log has this entry, showing the ban did Dec 5, 2008 · I have changed REJECT to DROP in /etc/config/firewall. 06. I used to think putting forward rule to REJECT/DROP on these zones would block traffic between them but in 2022 (before OpenWRT switched to nftables) someone suggested that I should add a rule like this: Oct 25, 2018 · Under Network->Firewall->General Setttings->Zones->wan the default was reject/accept/reject rather than drop/accept/drop. That said, it is also generally recommended to use REJECT instead of DROP, but this isn't critical. I kinda managed with this table: table bridge filter_wlan36 { # handle 2 chain filter_wlan36_to_input { # handle 1 type filter hook input priority 0; policy accept; udp dport { 53, 67, 68 } iifname "wlan36" accept comment "Allow DHCP and DNS from wlan36" # handle 3 iifname "wlan36" drop comment "Reject other traffic from wlan36" # handle 4 } chain filter_wlan36_to_forward Apr 3, 2024 · With the help of the OpenWrt community I got VLANs via DSA working but to fully isolate clients in my guest network I need some ebtables rules as with 19. config zone option name 'cams' option input 'ACCEPT' option output 'ACCEPT' option forward 'REJECT' list network 'cams' option log '1' config rule option name 'Allow-WAN-camshost' list proto 'all' option src 'cams I have 2 seperate interfaces and firewall zones for my wired (192. The LuCI and UCI interfaces are user abstractions, ultimately modifying the configuration files. The only thing different than the 'clean' default packages, was that I self compiled dnsmasq to v2. This is the default firewall rule of my router. Aug 26, 2020 · I'm trying to do some testing and would like to setup my network to only allow traffic on 80/443, expect for specific IP addresses where I will specify a TCP port and UDP port. Jan 16, 2018 · Access to web interface is also dangerous because of #640. Solution: in Advanced Settings (OpenWRT) change firewall settings for WAN from REJECT to DROP. The chain it follows to get to reject policy is FORWARD -> zone_guests_forward and as reject rule it has zone_guests_dest_REJECT where it logs and rejects based on that traffic being outputted to the zone interface. The sender will not know if their request was rejected or the host is not available. 30. The issue is, your config is not default - you enabled logging on the WAN zone. Jan 8, 2024 · Hi there! I am a little out of ideas as to the following usecase: I want to reject all traffic from any Machine (IP) within the lan to a specific port on a specific machine (IP). I configured table + chain + rule, in order to drop a stream of May 18, 2014 · Yeah. The default is to drop/reject, so what you don't explicitly add, is blocked. However, the author's explanation of the "forward" parameter did not convince me. You can check the logs what is dropped, but most likely you have asymmetric routing. Lo que nos indica que el servidor al que estamos haciendo dicha petición está encendido y un firewall se está ejecutando. Mar 11, 2023 · “drop”, on the other hand, means that the firewall simply dropped the network traffic without sending any response back to the sender. xx ("lan" interface) to 192. via UCI via IPtables Hi, In my firewall rules I set a test rule for device A with mac-addr XYZ to block internet access. eu/firewall. Dec 16, 2024 · The zone level forward rule controls forwarding between two or more networks that are in the same firewall zone. 05. Related projects, such as DD-WRT, Tomato and OpenSAN, are also on-topic. Aug 3, 2015 · LAN2 ⇒ WAN accept accept reject no no I have a port forwarding from WAN to Server and everything is working fine, but: How can I connect from LAN1 to Server? Dec 19, 2019 · Greetings, Is it possible to change the default policy to REJECT packets from "lan" to "wan", and instead specifically list what should have access to send out? Is there a firewall hardening guide for OpenWRT? Why? I… I am trying to understand the difference between setting my WAN incoming firewall rules to either reject or drop. Similarly, if you set reject for LAN forwarding you should lose internet connectivity, I think. I think my question is kind of stupid, but I was not able to find an answer. I suspected that. En cambio, DENY o DROP, como es llamado en iptables desde el Kernel 2. It covers the default configuration, zone-based architecture, traffic filtering rules, NAT (Network Address Translation), and spec Jan 14, 2016 · I have set up forwarding to REJECT for zone LAN to WAN in Luci (http://openwrt. 2 553 To make sure that the server is running and accepting connections, I did the following. 03. What am I doing wrong here? May 12, 2025 · Zone policies define the default action for traffic entering or leaving a zone. Arthur1 May 15, 2025, 11:23pm 3 Nope, set wan input n forward to drop from reject You can tick "drop invalid" checkbox too. Can you explain what it is that your current firewall doesn't do that you want it to do? Is it that you want the firewall to DROP instead of REJECT packets? Just select DROP in the LuCi menu for the forwarding and/or input policy on WAN My current firewall settings allow an acknowledgment for port scans on IPv6. kreteni. With my old WRT3200 and 19. What am I missing here? Система керування фаєрволом OpenWrt — firewall — переважно конфігурується через файл /etc/config/firewall. Apr 4, 2022 · This checkbox adds the -m conntrack --ctstate INVALID -m comment --comment "!fw3" -j DROP in INPUT, OUTPUT, and FORWARD. This causes the Shields Up! security check at grc. Once completed, I wa I see that, by default, only the firewall rule wan => Reject has the 'masquerade' tick set. 119). Setting 1 zone and forwarding the ports for DHCP and DNS works great, but doing it on 2 zones did not work so i need to configure some rules to access the internet. Stealth is actually more invisible to the scan. I'm sure that my lan traffic must be masqueraded to get out to wan (otherwise local ips would be leaving to the internet, which makes no sense). For more detailed stuff you need to know what to add via "extra arguments". What's the difference between Drop and Reject? Nov 14, 2018 · Hi all, I just installed OpenWRT, but I have difficulties understanding the relation and meaning of forwardings, firewall chains and rules. 111 auto auto when drop_invalid is enabled on the router, I can not make any connections to the vm Dec 30, 2006 · REJECT is used to send a specific response back, if you want to silently drop the request, use DROP. Most of the information in this wiki will focus on the configuration files and content. Feb 6, 2021 · Hi I'm using time-based rules like this: config rule option weekdays 'Sun Mon Tue Wed Thu' option src 'lan' option name 'Desktop offtime: week night' list src_ip '192. the setup is like this: server0 eth ip 192. option input is the traffic flows from the wan zone to the router. My question is about how openwrt has setup the firewall. 4, hace que el paquete de petición sea "tirado al suelo y olvidado", y ningún paquete de OpenWrt news, tools, tips and discussion. Apr 2, 2024 · Small guide how to harden your OpenWRT. I don't understand why input traffic is rejected. To keep the camera's from phoning home. 1 installed from: openwrt-ar71xx-wrt160nl-squashfs-factory. To be fair, it is more likely that if someone installed OpenWRT that they are edging away from the "typical consumer" group. So I stick to the web gui. 0/24 gateway 192. What is this about? looks like QoS, but which I don't know much about, but I don't have any QoS option enabled there (as far as GUI options go). bin (firewall only customized with this: sed 's/REJECT/DROP/g' /etc/config/firewall) - so besides this, IT'S A DEFAULT OPENWRT INSTALL I have 3 SSID's on it for 3 clients. > nc -v -v 192. 7 KB Changed firewall zone lan>wan , input,output,forward everything to reject and can't access router anymore xd ( I wanted to temp disable internet on lan while I'm testing something ) Anyways I eventually managed to get back into router - reboot into failsafe mode and then I issued these commands : Mar 19, 2022 · ruci에서 방화벽 설정 general setting 탭을 보면 input, output, forwading의 기본 정책 및 zones과 zone->forwarding 등의 방화벽 기본 정책에 대한 부분이 있습니다. My IPv6 is through a HE. 264 and 2. This file contains all the firewall settings including zones, rules, forwarding policies, and NAT settings. For him, in LuCI, it doesn't matter if "forward" is set to "accept" or "reject/drop", because it only opens or closes traffic between vlans gathered under the same zone, but does not Dec 11, 2015 · Hi, recently I have upgraded my home router to OpenWRT 15. 78. gif), I can see my rule enabling http traffic followed by automatically generated rule enabling all traffic. drop = the traffic is just blocked on target --> netcat isn't getting any feedback from target. user and Shields Up still sees my ports as closed and not stealthed. 07. What is the exact meaning of this (in the luci interface)? Zone1 => Zone2 a b c (a,b,c either accept, reject or drop) IPV6 i supposed to be disabled for the interface, so why to I keep getting these messages? Firewall is set to drop/reject/reject input/output/forward, and only allow incoming traffic to port 80 and 443. That way, they can only talk via WAN and not each other. You have to recall that timed-out TCP connections will also be rejected too. In practical terms it just means no forwarding between zones except under the control RW rules and using DROP rather than REJECT as both policy and targets in iptables. 02 install and a very minimalist setup. If you pull up Network>Firewall what are the recommended settings for "General" and "Zones?" Upon reading google hits, many are showing a "Lan -> wan" setting of "reject" for forward whereas the out-of-the-box settings have that set to "accept" including this OpenWRT wiki. 20. in LuCi, go to Network -> Firewall -> Traffic Rules Tab. 1/24) of device type eth0 named 'cams' with a separate firewall zone named 'cams' that has logging enabled. Output = accept/ drop/ reject packets that originate at the router going into a network in the zone. Основна увага у цьому розділі приділяється саме конфігураційним файлам і їхньому вмісту. Usually you have a zone "from LAN to WAN" which has "Forward" activated. 111/24, ipv4 forward enabled. Oct 31, 2024 · The "General Settings" section is for networks that are not assigned to a firewall zones. Feb 6, 2019 · To add to what @eduperez has already said, by default the firewall in OpenWrt allows computers connected to the LAN zone to connect outbound, and does not allow inbound connections from WAN to LAN for either ipv4 or ipv6. I want to block web admin access (http, https, ssh - if setting dropbear to listen on wan) from the internet. 200. com to fail. Drop WAN packets in OpenWrt firewall instead of rejecting them? Hey there, I've just installed OpenWrt on my home router and had a look at the default configuration of firewall zones. I assume each of these has a reason but haven't found anything that goes through rule-by-rule and the 'why' of them. It only stops working, when I unlink the interface from the firewall zone. I installed nftables in my Comtrend AR-5387un router, with OpenWRT 22. I want WAN port 553 -> 192. May 12, 2025 · Configuration Overview Firewall4 uses UCI (Unified Configuration Interface), OpenWRT's configuration system, to define firewall settings. The goal: I want all traffic from the router itself, eg: dns, updates, packages, blocklists, ipsets. We could: do as OpenWrt does with the default firewall package, which is to simply reject all the incoming connections on the WAN ports (but we always deselect the firewall package), do you think is a good idea? @G10h4ck @spiccinini @gmarcos87 @nicopace Hello! Im looking for a solution to put 3 vlan zones in a firewall input = reject zone but both being abel to access router or any other vlans. However, I don't understand how lan => wan would not be masquerade. Small guide how to harden your OpenWRT. Mar 30, 2014 · If you have openwrt, unless configured otherwise, the default is this: reject everything, accept ping. Aug 17, 2017 · will create firewall rules that write an entry to either the kernel log or the system log for rejected and dropped traffic on a per-zone basis, and will limit the number of log entries to 10 entries per minute so the kernel log doesn't get flooded. So edit /etc/config/firewall and change the rules REJECT to DROP & drop pings, then you will be stealth, or your ISP messes with ports, as jow said. I hope that's what you want. In this point of the development of the project, I'm having issues with nftables. nft' option Mar 4, 2012 · 全域的 Default 設定 # V24. 2 553 Connection to 192. "Stealth" means that the grc test did not receive "reject" response, it waited for timeout and marked it then as stealth. I am using drop instead of reject to reduce CPU load. This is why you see a RST for this connection What you seek is egress filtering. If you set the default to reject/drop, you can then create rules to permit traffic as needed. With the following settings in /etc/config/firewall: 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 wan list network 'wan' list network 'wan6' option input DROP option output ACCEPT May 15, 2024 · Notice the added forward rule you can change that to drop or reject if you want, but it won't actually matter if there is only one network in the zone. Likewise, drop or reject will prevent the networks from communicating unless other rules Input = accept/ drop/ reject packets that originate from a network in the zone and are targeted at the router. Under Network->Firewall->Traffic Rules there are a bunch of (IMO) unnecessary rules enabled by default. 188. From what I have been able to find out there, this is an unresolved subject with two very divided camps, hence my question. 130 ports 137 138 139 445 (Samba ports of the samba service) Here is the setup: But I can still connect to my samba shares Mar 10, 2018 · On both 2. be careful to allow incoming icmp packets that are related to existing traffic (only block echo requests, and/or use the connection tracking features properly), as icmp is used for more important things then harmless pinging of routers I'd like to know what the strictest firewall rule would be, assuming a vanilla OpenWrt 21. x. Nov 4, 2023 · Installing and Using OpenWrt borhacker November 4, 2023, 2:06pm 1 Hi everyone, I have a project in mind, involving an OpenWRT router, an Ubuntu server, and a IPTV decoder. Why shouldn't that apply to ICMP as Jan 21, 2012 · It categorizes the result of a port scan in term that most non-techies will understand. to go over a vpn. This is installed to the root file system for the image. vm0 virtual network gateway ip 192. A brief overview presented below: I've read the default firewall rules, and I understand that the general default rule is to accept incoming and outgoing connection from zones, then reject forwarding. What you add, overrides default. For INPUT and OUTPUT from and to the WAN zone (destination or source is the router) you can configure the INPUT and OUTPUT drop down menus. I noticed that there are forwardings that define where traffic originating from a specific zone can be forwarded, but I also noticed that forwarded traffic must be accepted at the destination zone (only visible by editing a zone). rej… I will set the policys of the LAN Zone to drop/reject but with working DHCP. net tunnel, I've configured it as an interface (henet) and assigned it to the wan zone. I heard, that many cable companies block ports, even port 80. The primary configuration file is located at /etc/config/firewall. What are you trying to accomplish? Oct 26, 2024 · I have myzone with forward 'DROP' policy: config zone option name 'myzone' option network 'myzone' option input 'DROP' option output 'ACCEPT' option forward 'DROP' While manual insertion works as expected: # nft insert rule inet fw4 drop_to_myzone log prefix \\"MYzone_REJECT \\" permanent rule does nothing: config include option type 'nftables' option path '/etc/firewall_myzone_log. I would do this after setting up the necessary firewall rules to allow needed access and would strongly recommend having some other method to connect (i. 27, default firewall settings for WAN are set to REJECT. 10 I've used the following ebtables rules for the guest network: May 31, 2019 · Hello, I made this firewall script to DROP everything by default and allow few ports and few domains to communicate for my specific device : #Change Default policy to ACCEPT iptables -P INPUT ACCEPT iptables -P OUTPUT … Sep 14, 2022 · Using OpenWrt 22. via UCI via IPtables Feb 9, 2015 · I configured the firewall on my OpenWRT router to reject outgoing traffic (LAN to WAN) by default, and then explicitely allow protocols and ports as needed. Thanks for the quick response, brada4! Do these settings look good? Jul 8, 2022 · I can't find out how to create a fw3 rule which does what I want (block all traffic from 192. My firewall have these lines spammed, coming from my ISP modem. However, everything works fine without masquerading this 'lan=>wan', can someone explain Nov 10, 2023 · But, to answer your question, you can change the input rule for the lan zone to drop or reject which would block access to the device. It replaces the previous firewall3 (fw3) system, which was based on iptables. EDIT: All sorted. 169. Jan 24, 2023 · z1176×107 11. Mar 14, 2017 · When I uncheck the option in the web interface the line option drop_invalid '0' is added to /etc/config/firewall. 103. There are three possible policies: ACCEPT: Allow traffic to pass through DROP: Silently discard traffic without notification REJECT: Deny traffic and send appropriate rejection notification Each zone can have separate policies for different traffic directions: Mar 13, 2025 · Installing and Using OpenWrt fda March 13, 2025, 2:30am 1 I have some VPN Servr on my lan, and if I enable "“Drop invalid packets” on the router, the router does not send anymore ICMP-redirects. That should Aug 3, 2018 · I think this bug has been here for a while but it's still 18. By configuring the firewall to log rejected packages I could identify what legitimate traffic was blocked, and open up the firewall. I do not want it to do this. So this is again a thread about a non-issue. 40) LAN clients. Sep 4, 2024 · Greetings forum I am having no luck blocking inbound IPv6 to my lan. Mar 22, 2024 · Seems like the firewall is allowing everyting no matter what I try. If that is set to accept, it will allow those networks to communicate with each other unless there are any other rules filtering/prohibiting those connections. 16. Dec 4, 2021 · Hopefully this topic can help those getting their feet wet with NFtables, and maybe even help some of the seasoned NFtables veterans out there. Firewall4 provides a unified configuration interface for managing network traffic control, including packet filtering, network address translation (NAT), and connection I thought that the default firewall/IPv6 rules would block these requests, but this doesn't appear to be happening, so I've potentially got a misconfiguration or need to adapt my existing firewall. 168. 1/24 target 192. now from what I understand is you have firewall zones these would be the global rules of said OpenWrt's firewall management application firewall is mainly configured through /etc/config/firewall. 0 and NFT-QOS I would like to restrict total access to only the IP's that have been controlled by NFT-QOS. In general, if you use it than allow it, If you don't then its best to reject or drop the packets. 2 running on a Raspberry Pi 4. So the scanner knows that there is a device on that port. May 15, 2025 · This page documents the firewall configuration system in OpenWrt 6. I'm using the GL-MT6000 as my main router (Lan + Wifi clients) and a DIR860L as a Switch + AP (Lan + Wifi cleints). 2 553 port [tcp/*] succeeded! Try to connect through WAN > nc -v -v {wan_ip} 553 nc: connect to {wan_ip} port 553 (tcp) failed: Connection timed out Also tried Jan 27, 2019 · What is the best way to avoid http traffic out of an openwrt router ? Firewall ? iptables ? How ? Apr 12, 2023 · OpenWrt 22. The main thing that this doesn't do is limit what the LAN devices can reach, which could be a useful thing for May 12, 2025 · Overview Relevant source files Firewall4 (fw4) is a firewall management system for OpenWRT that configures the Linux kernel's nftables subsystem. I've changed the default INPUT on the lan firewall to REJECT config zone option name 'lan' list network 'lan' option input 'REJECT' option output 'ACCEPT' option forward 'ACCEPT' I've added accepts for DHCP and just the IP's I want to allow access. 2 Is their a priority to firewall rules which accept and those which drop? I'm running Crowdsec + firewall-bouncer and have added manual bans on ip ranges such as: cscli decisions add --range 147. serial or another allowed interface) available to resolve any issues/misconfiguration. 02. Feb 27, 2017 · I suggest that default policy should be always set to DROP forward and can't think on a scenario where someone wants to accept forwarding from unknown ifaces, except for testing incomplete configurations. Uncheck this. Basically, this is for sharing and caring! If you have a neat NFtables tip or trick that you think might benefit others, share a snippet here for the good of the community. edit: Allow LAN to WAN, Guest to WAN. From your I have a Hurricane Electric 6in4 tunnel up and running and added this WAN6 interface into my WAN firewall zone on OpenWrt 21. "Closed" means that your router blocked the traffic and sent "reject" feedback to grc. Apr 16, 2012 · Lo que sucede es que REJECT hace que se envíe un paquete ICMP port unreachable al host que hace la petición. 235 # option dest_port 80 May 30, 2022 · The circled reject is for the forwardings (or interzone traffic), which is shown when a zone is not allowed to forward to any other zone. So I created the following firewall rules: allow vpn-connections to wan mark 0x10 ipv4/6 from this device to wan block everything from this device to wan and added a routing rule: mark '0x10' lookup '21 Nov 7, 2023 · I'd like to disable ping on WAN. In short: Reject all traffic in the subnet 192. Same is true for guests, but as the only difference is reject vs drop I assume it is caused by the same mistake. cb cmnw nydz 9u1 jw3dnqj4 2r7 gsakeu wtput hb8e0tig btk