Openwrt redirect dns request Since we're only redirecting DNS udp 53 we add -p udp --dport 53. i want redirect DNS Request from client to other DNS Server i have using a iptables . I do not want to intercept internal ntp traffic. 1. Most of the questions stem from my ignorance of how things actually work under the hood. 220. I have an external IPv4 and IPv6 address, and because of that my IPv6-capable computers have acquired IPv6 addresses. Dec 29, 2024 · I'm configuring my OpenWRT to forward its requests to my pi-hole on a rpi4. 250). 07 and copying across all my customisations. 03 is about to go stable, and we have to move from iptables to nftables. 1 made the dns request. 07. I am trying to use my custom DNS server, located in the DMZ network. At the time, yes, the NAT rule was explicitly necessary to prevent the unexpected source errors. Note that clients can bypass the above port forward rule if they use DNS-over-TLS or DNS-over-HTTPS. Aug 8, 2020 · Hi, I have Archer C7 v2 running OpenWrt 19. redirect a request for 1. . To visualize the impact of non-secured DNS traffic, I setup a small monitoring environment using OpenWRT, Prometheus and Grafana. So two ip sets for IPv4 and IPv6 DoH addresses get compiled and blackholed at the router in my network. Every other network their DNS requests should be send to the custom DNS server. 2. dest_ip= "192. Openwrt guide forces it to use whatever is configured in Network > DHCP and DNS > DNS forwardings(put your PiHole IP here). 168. my Chromecast from not using AGH. This will be LAN and DMZ. On pfSense this is easy going. dns_int. the router is forwarding DNS queries to a Rasberry Pi running PiHole. src_ip= '!192. 100 to port 53 thanks in advance Oct 23, 2024 · The port forward and the NAT rule were created a long while ago, running 22. 100 to 10. nft file to redirect all dns queries except 10. here the iptables. Jul 24, 2015 · Then we narrow down the selection to include only traffic going out to the internet by selecting the interface -i br-lan which is OpenWRT's LAN interface. Most of the information in this wiki will focus on the configuration files and content. 3. We want the PiHole to masquerade as the DNS server that the client was trying to reach. dns_int uci set firewall. Move the local DNS server to a separate subnet to avoid masquerading. If you want to log every DNS lookup, you have to redirect all DNS queries to the router’s DNS forwarder. name="Intercept-DNS" uci set firewall. played around in Luci but I think it needs to go into the custom firewall rules and I'm not having much success writing my own. Here you go to NAT-section and redirect internal request to any IP or port of your Jan 14, 2022 · I've found a bunch of stuff on this (like Need help forwarding IPv6 DNS request from specific host to different server), but I can't figure out what exactly to do with the info (it's all Greek to me, sadly). I'm trying to figure out how to DNAT all outbound DNS traffic to the rpi. The Windows computers seem to prefer making DNS requests over IPv6 your guide forwards dns queries straight to PiHole IP. However, one may deliberately choose to perform lookups on a different server. On the OpenWRT router under Network > Firewall > Port Forwards, I added the following rule: Jan 18, 2025 · Avoid using Dnsmasq. 1. Note: Im not using adguard home - I use unbound + adblock (which is basically the same as just running unbound, since adblock just generates dns blacklists for unbound to use). Dec 15, 2020 · The second item is important. 2" uci set firewall. I am using iptables (IPv4) to forward DNS request from specific host to less restricted Mar 22, 2020 · I'm just in the process of upgrading my 15. In order to capture the OpenWRT router itself I've read here to use Network>DHCP and DNS>Forwards but I'm unclear on what info (and format of that info) goes into the DNS Forwards and Additional server files boxes. I figured I'd post this script, since some of you may find it useful. g. # Configure firewall uci set firewall. For example: I want to redirect outgoing ntp traffic to an internal ntp server. IPSet-based filtering to ensure only Mar 18, 2025 · please someone give me nft table rules for . Hopefully this Jan 21, 2016 · Redirect all DNS lookups (Optional) The router’s DHCP server should have assigned itself as the DNS server to all DHCP clients on your network. Thank you (Last edited by elas on 17 Jan 2016, 17:55) Aug 28, 2022 · So, openwrt 22. Jan 6, 2020 · i have OpenWRT and i already setup a hotspot. 4 to 4. dns Google/Apple devices in my network sure do love the "security" they provide my DNS requests by using DNS over HTTPS/TLS rather than respecting my advertised DNS server. Related projects, such as DD-WRT, Tomato and OpenSAN, are also on-topic. I have configured the firewall with: DNAT rules to redirect all DNS traffic to OpenDNS (208. dns_int="redirect" uci set firewall. Oct 12, 2023 · Hi! While reading the DNS hijacking guide, I had a number of questions, which I would like to ask to get better understanding. e. 222, 208. , Google 8. It's a firewall user script that redirects any dns queries from internal hosts to the openwrt host. difference is that your guide, in Pi-Hole will show which device made the request, Openwrt guide will show 192. I also set a rule to deny LAN port 853 (DNS over TLS) WAN access. Oct 7, 2021 · I have tried multiple fixes that were mentioned in other threads. This intercept rule: # Intercept DNS traffic uci -q delete firewall. 03 probably (and probably following this page, as I named the rules the same way). 250#53' Port Forwarding: config redirect 'adguardhome_lan_dns_53' option src 'lan' option proto 'tcp udp' option src_dport '53' option target Mar 9, 2021 · Is there any way to forward dns requests from my wan router to openwrt(lan) which is running dnsmasq dns server? your guide forwards dns queries straight to PiHole IP. As such, these firewall rules redirect all port 53 TCP/UD Dec 3, 2020 · Hi all, I followed the guide: trying to force all devices on my LAN to use OpenWRT for all DNS queries, but couple of things still not clear. Is that possible? Another portion of clients should be served with DNS local via adguardhome on the usual port 53. iptables -t nat -I PREROUTING -p udp -s 192. 2' uci commit firewall service firewall restart # Configure network uci add Dec 23, 2022 · Hello! I set up my router (192. I am running multiple instance of stubby on my router, default instance is with parental control and other stubby instance is less restricted DNS. 1 / 8. 05 system to 19. 1). 10. 8, Cloudflare 1. You'll find many android devices, for example, simply ignore the dns settings in the dhcp lease and just use Google's OpenWrt news, tools, tips and discussion. Jan 18, 2025 · Avoid using Dnsmasq. The guide instructs to create this redirect rule: config redirect option dest_port '53' option src 'wan' option name 'Hijack DNS' option src_dport '53' option target 'DNAT' option dest 'lan' but, shouldn't src and dest be the other way around? Also, this Jan 31, 2025 · Setup & Goal: I am running OpenWRT and attempting to force all DNS queries to OpenDNS while blocking any external DNS servers (e. 220). 67. name= "Redirect-DNS" uci set firewall. I've already setup the firewall forwarding rule to get my lan clients to use pi-hole. 17 --dport 53 -j DNAT --to DNSServerIP:533 But my client got DNS_PROBE_FINISHED_NO_INTERNET. 1) to forward all DNS queries to AGH (192. You can replace Aug 11, 2018 · hey there. I've also added Port Forwarding rules to prevent i. REJECT rules to block any DNS requests not directed to OpenDNS. 8. Port Forward Rule. May 25, 2023 · What I want: specifying a destination zone (no matter from which source zone it comes) and where to redirect this request (e. 0. Now that we only get DNS packets, we redirect them to the local DNS server using -j DNAT --to 192. This works really well: dnsmasq config dnsmasq list server '192. I have static IPv4 DHCP for clients so I can forward specific host to a different DNS server. 222. If a software client makes a DNS request to 1. Configure firewall to redirect DNS traffic to your local DNS server. This way, until now, I was using something similar to this (I have copied this code from that thread): # # DNSHIJACKv4 # Log and hijack to Pihole iptables -t nat -N dnshijack This works for me for redirecting "standard" (non-DoT/DoH) DNS requests using UCI. I have a setup similar to what is described in this thread - I have 5 raspberry pi 4b, and I have installed pi-hole in two of them. 3 r11063-85e04e9f46. I have an OpenWRT install handing out DHCP and running DNS. How can redirect dns address to external dns server from openwrt? In machine dns address is ip of openwrt dns server and I need it be directed from openwrt dns server to external dns server. But non of them have worked. 8). 2' uci commit firewall service firewall restart # Configure network uci add Mar 2, 2023 · Hey folks, some simple (mayby stupid) question: My brand new OpenWRT-Box should redirect all traffic from lan or guest to port 53 (DNS) to a self defined external IP. The LuCI and UCI interfaces are user abstractions, ultimately modifying the configuration files. I have added the custom DNS server to the DHCP server (this works! But I also want to make openwrt forward all DNS requests to Sep 8, 2024 · 要在OpenWrt路由器上设置网址跳转，你可以通过配置DNS重定向来实现。 以下是一个简要的步骤指南： 安装必要软件包 ：首先，确保你的OpenWrt系统安装了 dnsmasq 和 luci-app-dnsmasq （如果未安装，可以在OpenWrt的界面上通过“软件包”来安装）。 Sep 14, 2021 · Some time ago I wrote about DNS privacy, why it’s important and how to ensure noone is snooping on your DNS traffic and protect yourself using techniques such DNS over HTTPS and DNS over TLS. 1 but gets a response from some other IP address, it will complain. Nov 24, 2024 · OpenWrt's firewall management application firewall is mainly configured through /etc/config/firewall. How can I achieve this goal with OpenWRT? Just ensure that custom DNS servers is set for your WAN interface(s) and set to your desired DNS servers (eg. ajto sgrf rkzweb noj wsl sdnpmv sdx xokzll liirt zcuq heasd mgmkeld imoh wvce wcumja