Openwrt ipv6 dns Almost everything is starting to work fine now, but I've observed that OpenWRT dnsmasq stops resolving a hostname with IPV6-only DNS authoritative domain server. I tested these 4 packages that are used to Encrypt your DNS traffic: DoH with Dnsmasq and https-dns-proxy DNSCrypt with Dnsmasq and Try the openwrt network diagnostics on your router to see if you can ping openwrt. 104. My assumptions are that clients should do a dhcpv6 solicit and receive a prefix using: config interface 'trusted6' option proto 'dhcpv6' option Can I get some help clarifying my understanding of IPv6, is a DUID unique to the client (similar to a mac address) or is this UID generated by openwrt for the first time it sees a request from the device? Asking in another way, will the IPv6 DUID for a client ever change under any of these: a) I re-install the client OS (windows reinstall) b) I flash openwrt and start from Any ideas how to advertise my pihole ipv6 as DNS? Router is Archer C7v5. Nor do I see the IPv6 DNS server that should be there. 962184 IP However, ads are still not being filtered. mediatek/mt7622. Hence the traffic sourcing from the public IPv6 allocated by your ISP will go through your ISP. use_tempaddr = 2 on all my linux Hello, I am trying to setup the DHCP server to propagate in IPv6 DNS server to send to clients that isn't LEDE itselft, I am running Pi-Hole on this server for adblocking. I heard that you can use relay mode but I am not sure how to do this - I tried few suggestions, but I am not sure I understand. For devices that don't listen to DHCPv6, you could set the router's IPv6 DNS server in use to the address you want. How do I make this work? I have a network connection through a stock firmware router, for which my OpenWRT box acts as DHCP server (no routing) - meaning it configures all my hosts with IP address, subnet, gateway (the stock router) and DNS servers (standalone DNS, followed by OpenWRT, followed by the main router): This works excellent for IPv4 but not for IPv6. In the OpenWrt router, using DHCP-Options within Interfaces --> LAN --> DCHP Server --> Advanced Settings, I have set the IPv4 address of AdGuard Home server, using Option 6 (as documented). External port: 53. I am here today with the and now my LAN hosts can all receive the relayed RA and NDP messages, get public ipv6 addresses, and could have ipv6 connection (passed test-ipv6. Hi, I am trying to set parental control by assigning specific dns address for a given host. My ISP can provide to me 6 PD. This resolver seems to take precedent over my own defined DNS resolvers set in the WAN and WAN6 interface. Please do not tick the designated master tick box and also set the NDP-Proxy dropdown to Every other network their DNS requests should be send to the custom DNS server. I would like to change the firewall so vlan 10 has access to everything, but 20,30,40 can only go to the internet and back (unable to see other vlan traffic) I Hi I have problems with resolving IPv6 addresses of local devices. Still querying over IPv6 for DNS records upstream and still connecting to sites using IPv6 addresses on AAAA records. 6. DNS-over-TLS adds a layer of encryption over your DNS requests, keeping your Hello every one, I have two wan interface, both have ipv4/ipv6, I use wan1 as my default route , and use wan2 for some other customized route. 1 Address: 127. 1：5300。不知道是不是算个bug Hi, I am trying to create a DMZ with ipv6 only. Or you could let it advertise the router, and have the router just look things up on your existing ipv4 DNS. I have two routers in my network, one is running stock firmware and is the gateway to the internet, it has the DHCP server disabled. home. I'm running the latest standard build for a BT Home Hub 5 (22. This is my config: config dnsmasq option domainneeded '1' option boguspriv '1' option filterwin2k '0' option Also, i dont know what IPv6 assignment length to use, my router show this on overview. domain = 'home. In my network I still keep the ISP's router as the gateway and the OpenWrt device only does DH By default OpenWrt uses source routing in IPv6. network toplogic isp -> isp modern -> my I am having problems getting IPv6 to work under OpenWRT, I want to run it DHCPv6 stateful (like DHCPv4), but for some reason setting it to that (or stateless) in the LAN interface page will stop clients having internet access, bar having a valid (as far as I can see) IPv6 address and their DNS requests being seen and responded to by the router. @dnsmasq[0]. My IPv6 address uses EUI-64 fixed suffix, how do I allow the fixed suffix IP address in the firewall? config host option dns '1' option name 'EA8500' option mac 'C0:56:27:XX:XX:XX' option ip '192. Official downloaded image. 02 : ra: string : no (none) Specifies whether Router Advertisements should be enabled (server), Hello, I'm using OpenWrt on a small ARM SBC (similar to the Rpi) to work as my IPv4 DHCP and DNS server (with SmartDNS etc). and does is still do it if you do an. If you can't ping and/or trace route using ipv6 then something is wrong with your OpenWRT routers use an open source, Linux-based operating system that provides the flexibility to configure routers and gateways according to user preferences. 1 1. OpenWrt Forum IPv6 advertise DNS without DHCPv6. But how to do it for IPv6? I tried adding DNS server's IPv6 address but it doe Skip to main content. For IPv4 folks just probe every address since most of them are populated. However, if I don't set anything in /etc/config/dhcp it will always send the router's IPv6 address as DNS. An important PSA for everyone using the https_dns_proxy package! Aaron Drew, the maintainer for the original package has recently accepted the pull request to support RFC8484 resolvers and retire support for the outdate uci set 'network. I don't want to use my ISP's DNS servers, but I'm a little confused as there seems to be multiple places to configure alternate servers. CGNAT appears to be the ip6tables -t nat -I PREROUTING -i br-lan -p tcp ! -d (ROUTER IPv6 ADDRESS LOCATED ON LAN INTERFACE) --dport 53 -j REDIRECT --to-ports 53 -m comment --comment "Intercept-DNS" So after all of this, both IPv4 and IPv6 DNS query are processed by the DNS of the router, so you need to filter the IPv6 addresses of Netflix and Disney+, for this you Odhpcd is the OpenWrt-specific IPv6 addressing server for the Lan side. Before to break every, I am trying to understand how the stuff work. org' option use_ipv6 '0' option cacert '/etc/ssl/certs' IPv6. All the Problem is that my router provides internal suffix for each hostname (option dhcp. This is interfering with my smart dns service which cannot use IPv6. That modem is connected to my own router’s wan. Current situation In OpenWRT 21. 1 DNS Domain: lan $ time resolvectl query This guide explains how to set up a local nameserver that prevents certain domain names from resolving to IPv6 addresses (AAAA records). EDIT: All sorted. So I think you cannot do this with DNSMasq. The problem now is that when i try to reach my new Nexctloud via URL i get redirected to LUCI. OpenWrt Forum IPv6 latency issue. Once setup, your ISP can't see your DNS queries any longer. 7 - The raspberry pi in which Pi-hole is For it to work you have to get a reverse PTR entry in DNS. 3, note though when I use dig from cmd, it shows on the pi that the query hit the pi, but not with chrome or cmd nslookup/ping and why are there so many ways for openwrt to I have installed Dynamic DNS and got it working. Proper DNS forwarding with PiHole. 168. When odhcpd hands out a lease, it writes the hostname and its IPv6 address to /tmp/hosts/odhcpd (as you've already seen) and sends a signal to dnsmasq to read the new addresses. You switched accounts on another tab or window. Even if it did go through the tunnel, the internet would not route it back via the VPN, but via your ISP. 1) 44. fd1a:25d6:5a17:0:dea6:32ff:fecd:ef32 is OpenWrt's IPv6 address, the other DNS server entries belong to the pi-hole that I want to be the only DNS server my LAN clients use. 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 Thanks for advice - indeed good to know that this is possible before deep diving . tld. I think netsh prefixpolicies may resolve this. If I enable DHCP relay mode on both WAN and LAN interface, my local clients also receive /64 GUA and Hi, I just flashed factory firmware to my Netgear R6120 and everything went perfectly. Actual But if you just want them to get useful advertisements you could set your internal DNS to use ipv6 and advertise that. You can disable the LOG line in the hijack chain to decrease logs, but it can be useful for testing and troubleshooting. I updated my configuration as follows (I just advertise 1 address for both protocols): OpenWRT, ipv6 is not connected, I can't ping global ipv6 addresses, ipv4 is working fine Hi folks, busy days after upgrading to 19. test-ipv6. I have an OpenWRT router behind ISP router. I can also see this from Linux using rdisc6. So i´ve searched around and thought i could solve it by adding Hi, I have read posts about disabling IPv6 on OpenWRT standard builds, but cant seem to find an answer to my question. I’ve followed all the posts regarding disabling IPv6 yet my laptop and iPad still receive an IPv6 address. MYYY August 24, 2024, 12:58am 1. 1 and fddd::1 My Adguard DNS Server is running on 192. 2 on WRT3200ACM. No matter where option dns is used in the /etc/config/network file, every one listed is placed into a single list of DNS servers that are consulted in a failover / round-robin fashion. The modem talks to OpenWrt through NCM. There's no affiliation Hi, for some reason my 17. The issue is that, in these RA, it advertises itself as DNS server. There will still be IPv6 settings in different areas but this will kill it. DoH uses the same port as HTTPS, so we need to filter by the destination IP address. A user asks how to announce a custom IPv6 DNS server by DHCPv6 for clients on a VPN interface. 2/24 Gateway: 192. Thanks, but editing a This post is not to know which one is better for privacy, it is only to know which one offers the best performance in OpenWrt when it is used together with the Adblock (luci-app-adblock) and banIP (luci-app-banip) packages. To my knowledge, it handles both DHCPv6 and slaac. Skip to main content. com, the correct IPv6 from the WAN is uploaded! If I select to also update the ipv4 for dynu. ISP router>> openwrt >> wired + wireless clients. This is useful if you are using an IPv6-over-IPv4 tunnel (such as IPv6 with Hurricane Electric) and want to use network services that don't support IPv6 tunnels. No response. However, I'm spending a lot of time trying to figure out how exactly the DNS service works on Hi there, i want to prevent the local DNS server on my OpenWRT router to announce IPv6 records when querying the hostname by which the router is reachable from the Internet. Hi! I use option 66 of the IPv4 DHCP server to server a custom DNS server to some clients. 1 and 1. br ;; connection timed out; no servers could be reached root@murguisrouter:~# Hi, all! Behind my ISP's modem, I have placed my OpenWrt router. I have noticed on ALL my devices (phone, laptop, wired and wireless Desktops), that ipv4 is being preferred before falling back to ipv6. 1 Openwrt is as a secondary router and the primary router run the IPV6 SLAAC server mode with other configuration flag is set. 3 Likes. Using the LuCI interface, I can go to the WAN and WAN6 interfaces, under Advanced Settings, and clear the "Use DNS servers advertised by peer" checkbox. dns_service available since 21. I know it is possible to disable ipV6 in windows, but that will make me change the default configuration in all windows machines and I prefer to avoid that. My OpenWRT-Router ist running on 192. r23809-234f1a2efa. No noticeable ill effects so far. What I thought I could do is make the following edits to my default configs: # /etc/config/network config interface 'wan' option ifname 'eth1. Lets take a look: root@murguisrouter:~# nslookup ds. 6' option leasetime '6h' option duid I have a problem where client devices do not have any IPv6 DNS. 5 within an x86 appliance. 4 upgraded to 23. What I want is for my traffic to route through the tunnel, just like Raspberry PI 4 running openwrt 23. Rebooting the device brings back IPv6. I'd like it to work as a portable router when I'm travelling. com , the wrong IPv6 from the LAN is uploaded and this can be prevented by adding myipv6=no into the services line of openWRT and use another, a 2nd ddns updater, to actually update the IPv6 with the WAN Ipv6 Hello, I'm trying to remove all the ULA:s on OpenWRT and removed ULA Prefix in LuCI. Multiple option values can be given for this network-id, Announce the IPv6 address of interface as DNS service if the list of dns option is empty. So I decided to write a script to update my firewall rules and RA DNS server. I turned of IPv6 DNS locally so some reports would be cleaner on DNS. DNS 1: 2001:4860:4860::8888 DNS 2: 2001:4860:4860::8844 DNS 3: 2001:1998:f00:2::1 DNS 4: 2001:1998:f00:1::1 The problem is Use dns server only with addn-hosts without upstream DNS. This is my /etc/config/firewall:. ddns Duck DNS - Duck DNS itself, this page also lists your domains and your token. Restrict to address family: IPv4 and IPv6. The router is connected to a media converter (TP Link MC220L) which is then connected to the OTO. 3 - The device (android phone) 192. 1：5300，只要重启openwrt后就无法解析ipv6，只能先选择直连dns协议为自动，再手动改为127. An A record with the IP 192. I got my devices in the LAN connected to the IPv6 internet by configuring LAN to use "relay mode" for RA-Service, DHCPv6-Service as "server mode" with "Local IPv6 DNS It doesn't end up registering things like my IPv6 enabled Samsung TV, but then it isn't clear what advantage that would give me anyway. 06. 1 is the OpenWrt router and 2. com Address 1: 123. Hi, I'm running an OpenWRT router with multiple VLANs and a single pi-hole (not on the router, but a separate device). Linksys E8450 (UBI) Image kind. trendy January 15, 2019, 5:35pm 14. OpenWrt version. I looked into nft list ruleset, there are currently two inet tables - fw4 and banIP. 05 with a usb Ethernet adapter (eth0 onboard (lan) eth1 usb (wan) Edgerouter X running openwrt 23. Why is there mtu 1200 on the lan interface? option ip6assign is missing from the lan interface and as a result there is no ipv6 address assigned to the interface from the ULA or the delegated prefix. lan. Other users reply with suggestions, links and tcpdump commands to troubleshoot the issue. 444s) using ipv4 Test IPv4 without DNS ok (0. Weird issue here, my ISP provides IPv4 and ipv6 plus DNS servers for both as well. . e. 255. conf. Unfortunately, I have very limited knowledge when it comes to networking stuffs. Unstuck5499 June 11, 2024, 5:28am 5. The DHCPv6 service is assigning 2 addresses to each machine / device on my network one in a 2a00 public address space and another in a fd84 private space, both addresses are added to DNS and are treated as a round robin address. DNS leak is a known bug in Hello, Iam not yet sure if I understand correct the openWRT concept for DHCP in regards to IPv6. To do this, log onto your DNS server and run /usr/sbin/ddns-confgen -s openwrt. This script uses the set RA DNS server => Local IPv6 DNS server: none => Announced DNS domains: none => NDP-Proxy: disabled. in past for IPv4. But I was having a lot of unresolved DNS issues caused by IPv6 (after I disabled IPv6 Learn how to configure IPv6 on OpenWrt devices, including DHCPv6, RA, DNS, NTP, and more. Source zone: lan. Unfortunately, my ISP provides my modem with a 64-bit IPv6 prefix, so that no more bits are left for any subnets. Banging my head hereso need some help. How can I remove the DNS entry from Problem: I have a router (openwrt) at home and I want computers to connect to each other on the local subnet by simply typing hostname instead of their ip. While It worked fine without any problem on 19. My configuration about interfaces is: config interface 'wan' option proto 'pppoe' option username 'xxx' option password 'yyy' option mtu '1492' option ipv6 '1' option device 'eth0. ; the option ifname eth0. Dumb AP config edit below option lookup_host '<subdomain>. Installing and Using OpenWrt. 07. x, 192. 1), DHCP-server (plus the IPv6 equivalents) on; You can't just connect it by its lan port (without reconfiguration) and expect it to work as AP, you will have to: Set DNS Forwards in luci's Network/DHCP and DNS/Forwards menu to my homeserver IP which does DNS for entire LAN. 455s) using ipv4 Test with IPv6 DNS record bad (0. 我们需要了解什么是 DNS（域名系统）以及它在网络中的作用。 I have a /64 prefix (damn ISP 🤡 ) , like many of us becuse of unlimited ISP greed (that is the only thing that they provide an unlimited amount of). When I start the device I see a "IPv6 Upstream" and IPv6 is working on end devices. Dear all, I am considering setting up an IPv6 HA tunnel to overcome the lack of professionalism of my French ISP which does not currently provide any IPv6. 2 should be only eth0. I do In a standard dual-stack network, with regular DNS, an IPv6-only device cannot connect to IPv4-only servers, as it has no access to NAT44. Change DNS servers in an OpenWrt router from command line. 200 and the name home. Therefore, I am attempting to implement modifications solely when they are absolutely necessary. com testing with a Debian Desktop for instance. On all my previous setups with different OpenWRT even when I unchecked interface>lan>dhcp server>ipv6 settings> Local IPv6 DNS server & even when I set Interfaces » lan>advanced settings> Use custom DNS servers to 192. Then the queries will be forwarded to quad9 and cloudflare. This causes all sorts of weird issues (mostly suddenly blocked things that worked before because the device randomly decides to use the IPv6 DNS). LAN clients should use Dnsmasq as a primary resolver. After all, you are still using the DNS servers on the WAN interface. I have a somewhat unique topology and have stumbled upon a configuration dilemma. lan) However on OpenWrt, IPv6 handling is done by odhcpd, so this mechanism does not come into play. I have read several iterations of advice like this (or this). The developers took care to add support for encrypted DNS servers, allowing you to configure Private AdGuard DNS on your device. 1 - The modem/router 192. 01 router announces it's fe80 address as a DNS server which breaks my local dns as I have a separate ipv4 dhcp/dns server. In the past, I tested an HA free tunnel and IPv6 Installing and Using OpenWrt. Given my devices have GUA ipv6 addresses they are seding DNS requests through the address related to The first step is to set up bind to allow updates to the A (IPv4) and AAAA (IPv6) records for openwrt. 68. 4. None of my internal hostnames are now resolving. DNS (including DNS64) NAT64 (via pf) an IPv6 router advertisement daemon; Assume I'm a networking idiot—and definitely an OpenWRT n00b—but that I'm comfortable on the command line. I want router responding with both ipv4 and ipv6 addresses. ipv6. 468s) using ipv4 Test for Dual Stack DNS and large packet ok (0. In other words, OpenWrt is unable to Hello community, im trying to install Nextcloud AIO at home on a Debian VM on a Proxmox server and OpenWRT router. Ok I discovered the problem. 1 eth0. meazz1 December 28, 2020, 5:12pm 1. However, the WAN_6 interface is still up. This setup will strip AAAA records from your specified domains- Hi, I installed Openwrt on an old netbook. ) On my WAN interface (ipv4, I don't have ipv6): I have disabled "Use DNS servers a Situation: 4040 running 22. tld and another one with the same address and the hame server. 021s) Test if your ISP's DNS server I installed https-dns-proxy and out of curiosity I wanted to see if the force dns option was working. ipconfig /release ipconfig /renew. 021s) Test with Dual Stack DNS record ok (0. The problem is that those devices will receive the OpenWRT IPv4 DNS via DHCPv4 but also the default PiHole IPv6 DNS via SLAAC. Mercy-- This is a guide from a newbie who recently installed Linux/OpenWRT and learning from scratch. Hello, I've been trying to configure a Pi-hole to run in my network, not through DHCP but by manually setting the DNS server on the target device as Pi-hole's address (this will be relevant later). 123. I don't know if it's possible to make OpenWRT advertise ipv6 prefixes without advertising any DNS on ipv6 at all. I have tried adding the address In the LuCI GUI, under Network - Interfaces - LAN - DHCP-Options set “6,xxxx:xxxx:xxxx:xxxx::xxxx” but this doesn't work, it seems it's only for IPv4 addresses. Testing. OpenWrt release. If it's out there, then appologies for any repetition. Is this the right place to add my Pi-hole IPv6 address in Openwrt?Lan --> From what I can see, you have only set the DNS servers for IPv4 communication. They are not advertised to clients. I am using iptables (IPv4) to forward DNS request from IPv6 逐渐成为网络协议的主流选择，由于 IPv4 地址资源日益枯竭，越来越多的服务和设备开始支持 IPv6。 对于使用 OpenWrt 软路由的用户而言，正确配置 IPv6 DNS 解析显得尤为重要。 软路由将详细介绍如何在 OpenWrt 系统上配置 IPv6 DNS 解析。. I have AdGuard Home running within an LXC container in Proxmox on a different appliance. My clients on "vpn" will get a dns server for IPv4 but not for IPv6. I am running OpenWrt 22. The Dynamic DNS module of OpenWRT support several methods to determine the IP address that should be registered, but for IPv6 servers it is kinda non-obvious how to OpenWrt will translate this to --dhcp-option, with a hyphen, as ultimately used by dnsmasq. This works fine with IPv4 assignement in dnsmasq configuration file, however the IPv6 DNS configuraiton is still pointing to the router default dns. Internal port: any # Configure firewall uci set DNS encryption should be enabled automatically. efahl May 19, 2023, 7:19pm 7. I am attempting to override my IPv6 DNS servers but with no luck, the clients get no IPv6 DNS set at all, its worth pointing out that my ISP only provides the WAN /64 address with no prefix (so i am using relay mode), and they do not supply any auto configured DNS servers The clients get the IPv6 address correctly and can ping out on IPv6 addresses Edit: Ok, after testing some more I kinda see what is happening, it looks like my computer has a priority on the IPV6 DNS server, even with no IPV6 assigned to it, for now I edited my DNS Servers to be manually set, like this: Is there any way of changing the IPV6 DNS Server when the tag is applied? My computer (cabled), where I use the WireGuard App to connect to The option dns settings in network interface blocks are used internally by the router's DNS process. org/docs/guide-user/base-system/dhcp list of strings (to list the strings) list dns Jan 2, 2025 To take it a step further, you might want to look into a DNS over TLS or HTTP (which avoids your ISP from snooping DNS requests): https://openwrt. I'm having trouble with my IPv6 WAN connection. Internal IP address: any. org. My OpenWRT router receives an IPv6 /64 address from my ISP router (WAN IPv6 interface on my OpenWRT router is set to DHCPv6). 4. You may need them if you ever want IPv6 back. You can also try the trace route tool for both ipv4 and ipv6. I have unbound installed with dnsmasq as described here then queries openwrt DNS to enrich the log with the domain of my lan device (ex: myandroidphone. no issue; but I think the OP did mention To be able to access the server from inside and outside with the same name (home. I would like to use CloudFlare DNS resolvers: 1. Since odhcpd doesn't know about your wifi domain, it all gets lumped Hello, My topology is as follows: x86 OpenWRT Router -> Belkin RT3200 as Wi-Fi dumbAP. If you want to contribute to the OpenWrt wiki, Hello everyone, currently I have the following setup: dsl router -> my openwrt router -> personal devices. For IPv6, you can distribute DNS servers via DHCPv6. You signed out in another tab or window. 3 r11063-85e04e9f46. Because of that I´m afraid I need to clarify / fix upfront my IPv6 settings and my DDns settings. Can you kindly help me to resolve this issue? The router has I am using an R7800 with openwrt 23. com. Navigation I have a question on how or if I can acceive this. 1 DNS 1: 192. 28202-588c6a1 on Linksys WRT1900AC v1 but now I see 4 DNS servers for IPv6 upstream. I use unbound for DNS while using DNSMASQ for DHCP. For IPv4, disabling this check in the interface does the trick: Use DNS servers advertised by peer. 240 and fddd::240 I serve the IPv4 DNS server to these clients like this: /etc/config/dhcp config tag @MichaelHampton's suggestion helped me realize Windows does accept IPv6 DNS servers through RDNSS; it seems my computer prefers IPv4. Do the non The ipv6 DNS server is stablished as fd84:a45b:c21::1 while the IPv6 of the interface of the router is fdb4:xxxx:xxxx::1 So ipV6 is not working and windows is using an auto configured IPv6. 1), 30 hops max, 38 byte packets 1 10. I´ve been watching many videos and reading posts on different webpages. This got me thinking about futureproofing my network. I don't know much about ipv6. 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 my DNS server. The main net uses the private ipv4 addresses 192. 1 DNS Servers: 10. I don't want all clients to use this DNS Server, only a few. or add it manually using ip6tables-extra package (example: wlan eth0. com Server: 127. I would like all devices connected to the OpenWrt router to get global IPv6 addresses so that test-ipv6. You signed in with another tab or window. 7. Steps to reproduce. After trying out a bunch of things, and ultimately going through the source of odhcpd I figured out that if dns option is specifically mentioned in the dhcp config for the interface (either ipv6 or ipv4), it This is because dnsmasq only handles DHCPv4 and DNS service. Verify domain name resolution with nslookup: If you want to contribute to the OpenWrt wiki, please post HERE in Hello, I don't want to announce any DNS neither using RAs (RDNSS) nor DHCPv6 stateless, using odhcpd. My ISP provides me with PPPoE connection with a IPv6 address. 2 thoughts on “ Simple IPv6 setup with OpenWRT ” Kazoo says: 08. The ipv6 trace route to openwrt. Tldr, if openwrt isn't giving out public ipv6 addresses (from an ISP assigned A few remarks. 1 Get IPv4 and IPv6 addresses for Cloudflare DNS resolvers, 1. Simple setup lan to wan. This will be LAN and DMZ. dr-peppsi September 3, 2021, 11:22am 1. Now, OpenWRT One can access the internet and have DNS Is this the right place to add my Pi-hole IPv6 address in Openwrt?Lan --> DHCP --> IPv6 Settings --. Reload to refresh your session. Currently, I have a setup where the DHCP hands out the pi-hole as DNS to the clients as follows And I added a traffic rule to allow DNS from all VLANs to the pi-hole: This works fine. Trying to get an IPv6 prefix delegated from my ISP (init7). 342 ms pc - lan Perhaps the DNS is coming from your IPv6 LAN IP on the router. Due to ISP network maintenance or failure the prefix would change multiple times over a year. local - it If you want to address your own server publicly via ipv6 you do not register the WAN interface address with some DDNS provider out the actual public permananent address of the server. Bro @goetz, and have started using OpenWrt since Recently, I updated my network to run with the latest OpenWRT release. Destination zone: unspecified. To force OpenWRT to provide ONLY Pihole(s) as DNS, we need to disable any upstream DNS. But usually you should configure the DNS servers on the wan interface if that's the interface that outbound DNS requests are sent on. Before upgrading to 21. DNS64 comes to fix this, by synthesizing AAAA records from A records. Stack Exchange Network. The option is empty, when I do uci show I look through it or do | grep ula or other things that could be connected to it and it still gives me a ULA address, the address is always with the prefix fd8d:9c44:d6fc:e31b::. I wrote them several times to complain, but still only 2% of their customers have IPv6 in 2020. 23. eth0. I have my router set up to use ipv6 with SLAAC but not DHCPv6. Skip to content. The upstream IPv6 contains DNS, as you see the IPV4 does Yes you should be able to add IPv6 addresses as well. The only way I OP, as u/xD3v1LG4m1ngx mentioned . 006s) Test IPv6 large packet bad (0. Hot Network my router it self use ipv6 well, but clients in lan cannot, clients has ipv6 address, in the same net with router lan interface's ipv6 address, and client can connect to openwrt via ipv6. but I've found that openwrt write both interface dns settings into same dnsmasq file, that leads some dns query answered by wan2 dns ,which is not suitable for my default route (wan1). g. As you come upon IPv6 settings going forward, disable them all but do not change any numerical values. You might have recognized this ISP, stay away from them. 0/24 and my personal subnet This how-to describes the method for intercepting DNS traffic on OpenWrt. 2. com using both ipv4 and ipv6. Go to Interfaces >> WAN >> Advanced Settings and uncheck Use DNS servers advertised by Hi, I recently renewed my 1Gbps fibre with my ISP and was switched to a CGNAT connection. v6ns. See examples, options, and compliance with RFC 7084. ipv6=off' is NOT set odhcpd disabled All OpenWrt's interfaces are option ipv6 '0' and all WAN/VPNs are ipv4 only. For IPv4 that was done by my ISP. 02 there was an option under 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. 2 a pihole DNS. 05. 0 running on a Linksys E8450, but my ISP only advertises a /64 IPv6 prefix to it using SLAAC, while things like DNS servers and NTP servers get advertised through DHCPv6. I'm also pretty fresh to IPv6. com returns 10/10 for each of them. 2' option proto 'dhcp' # Don't Now the bad news: If and to what extend you can really use IPv6 with OpenWrt is largely determined by your ISP – that’s the people who provide internet access to you. Well, I was scratching my head since few hours to resolve the DNS leak in Open VPN. The usb0 I've been messing around with my new Dynalink WRX-36 (very awesome device with the Agustin NSS build from github) and I was running some tests, including ipv6-test. 一、了解 DNS 与 IPv6. Protocol: TCP, UDP. My ISP's router/modem has ipv6 and gets a /64 prefix for connected devices. frollic June 30, 2021, 7:30am 2. You pick which DNS provider(s) you'd like to use. ddns-scripts package - package listing on Github. 601 ms 48. 123 (Public IPv4 Adress) Address 2: ::1 I want the AAAA IPv4 clients cannot communicate directly with IPv6 servers. 10 and I installed OpenWrt SNAPSHOT r22658-2c530fcb97 / LuCI Master git-23. 1 for Families. I'm using this also and works great. How do I configure dnsmasq to resolve local hostnames with dualstack ipv4 & ipv6? 3. Use You can add custom DNS servers by following the below link and https://openwrt. This is in order to have my own subnet for my personal devices and separate them from all other devices from my flatmates, which are directly connected to the dsl router. bin file without keeping the config), the router gets a /64 IPv6 address, but no IPv6 prefix, so clients don't get Interfaces/wan->edit/DHCP server/IPv6 settings-> disable everything. org/docs/guide Can I submit a specific IPv6 dns server to a client (or a group of clients) with odhcpd? I can apply an interface specific IPv6 dns using the config above (by putting the configure IPv6 DHCP server for br6. So wan get’s an ipv6 from the isp. The setup for my network looks like this: 192. I managed to make everything work as I wanted so far. Before the upgrade, I had unbound running as main DNS server, with dnsmasq as "link" for local addresses and dhcpv4; IPv6 Test with IPv4 DNS record ok (0. Right now when dns query is send to router, router responds with only ipv4 address (without ipv6 address). I read some threads, mainly guide-to-set-up-dmz-via-luci Interface -> WAN6 In Interface -> SLAAC/RA can announce DNS configuration, which is especially useful in environments where DHCPv6 usage is undesirable or unnecessary. Pi-hole DNS requests on mobile apps are being redirected to router's DNS. Unfortunately, this makes the dns based filtering totally unusable, cose the host can resolve the names using the ipv6 dns resolver and Hello, So, I tried what I could find online but this just wouldn't work. It does, however, appear to have broken the DNS for my home network. com instead. I have static IPv4 DHCP for clients so I can forward specific host to a different DNS server. and it should run a DDNS client itself to register that IP into hello im trying to set up dnscrypt proxy v2 on the latest stable image of openwrt i installed the dnscrypt following the official guide on github ipv4 works fine but my isp provides ipv6 is it possible to make ipv6 work im trying to use the address for ipv6 as sugested by the creator (i guess) of the dnscrypt itself mentioned on this thread on Main benefits of Tenta ICANN DNS as the backbone name servers on OpenWrt: A - Stop ISPs from spying on your browser history. host. mydomain. **Client Side : ** $ resolvectl Link 2 (ens18) Current Scopes: DNS DefaultRoute setting: yes LLMNR setting: yes MulticastDNS setting: no DNSOverTLS setting: no DNSSEC setting: no DNSSEC supported: no Current DNS Server: 10. Checking chains/rules in these tables against Netfilter hook priorities, it seems that DNS interception / blocking indeed happens before NATing into WG. Extend OpenWRT DNS with lines to resolve local IP. root@openwrt:~# nslookup my. Device. I guess that would be the list dns option in /etc/dhcp. IPV6 RA Settings: => Default router: Automatic => Enable SLAAC: Checked => RA Flags: O and H. OpenWrt target/subtarget. I'm using Nord VPN and fought with DNS leaks on Ubuntu and Open WRT couple of hours from morning and finally figured it out once and for all. Protocol: Static address Address: 192. 8 with the default config and am trying to disable my router from using IPv6 over the public internet. End devices now receive "no route to destination" from the router. Announced DNS servers OpenWrt Forum IPV6 DNS entry of PiHole in OpenWrt. 721 ms 44. arauc. The other one is running OpenWRT and does not do any routing - it is an access point connected via cable to the main router which also gives The odhcpd documentation mentions that it "Supports rewriting of the announced DNS server addresses" in relay mode. I've set up OpenWrt 18. Currently, I was going to wan6 > edit > advanced settings > use custom DNS servers. 1. You should see output similar to the following: Could someone walk me through the steps to accomplish this on my OpenWRT router? IPv6-Only Network: My ISP only provides IPv4 addresses, but I prefer to have an IPv6-only netwo OpenWrt Forum (DNS server on OpenWrt) to the router. # Install packages opkg update opkg install https-dns-proxy. 4) and my ISP is Now Broadband, who support IPv6. Dnsmasq forwards DNS queries to https-dns-proxy which encrypts DNS traffic. ; dhcp I have problems to annouce my IPv6 DNS server by DHCPv6 and have no idea why. elbe1 April 27, 2024, 8:43pm 1. I've PPPoE with IPv4 and IPv6 support, the WAN interface is configured for PPPoE and automatically a new Virtual Dynamic Interface appears for IPv6 WAN. 0, including manual migration to DSA; that is, I did NOT keep the configuration during the flashing and only adapted the old config manually afterwards, partly via GUI, partly editing the files. 3. Tried to remediate with iptables -t nat -A PREROUTING -s 192. I get 20/20 at ip6-test. My router shall also serve DNS so I do check the “Local IPv6 DNS server” tick box. org will probably fail so use ipv6. After about 30 minutes the "IPv6 Upstream" disappears. Network and Wireless Configuration. With the default settings the OpenWrt will advertise itself as the lan dns server and forward queries that are not in local cache to upstream dns servers. 1 traceroute to 10. ", disabled Router advertisment for the interface, disabled ipv6-service for the interface, disabled ndp-proxy for the interface and set "IPv6 assignment length" to disabled Hi, I would like to establish IPv6 internet connection on devices in my local network. Since I have set the dhcpv6, ra and ndp to relay, I ideally wanted the IPV6 DNS servers to be passed to any end-clients. 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 (10. tld) I create a dns record in the openwrt router (which is the dns server in my local lan, configured using dhcp). You may need to a NAT rule for IPv6. google. x. inet6 2a02:8071:ba8:31f1::142 prefixlen 128 scopeid 0x0<global> inet6 2a02:8071:ba8:31f1:d695:400e:51ab:9648 prefixlen 64 scopeid 0x0<global> To be honest, I dont know where the IPv6 address for the router "comes" from (who is assigning Hi fellow users! I have a PPPoE connection to my ISP and need some help configuring IPv6 over it. These IPv6 addresses are ranslated by NAT64 (jool) to IPv4 addresses. Hope this helps. This will generate the key and shared secret that will be used to update DNS. This setting overwrite the dns server for the client, but the IPv6 dns server is the one specified in the settings of the interface. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online Hi! I want to ignore the DNSs advertised by the ISP. I set its WiFi NIC (a dongle wifi actually) as a WAN port and the only ethernet interface it has as the LAN/BR port. OS: OpenWrt R22. 1, vlan 1 in the switch config should include port 4 untagged, and vlan 2 can be deleted. 3 -i br-lan -p udp --dport 53 -j ACCEPT and ip6tables -t nat -A PREROUTING -s fd0f:3fd1:8002::3 -i br-lan -p udp --dport 53 -j ACCEPT; Addendum: At this point I'd be happy even if anyone could assist me in a ruleset to Hi, my target is to get Wireguard running to connect to my OpenWRT Router and finally getting access to my lan(-interface). In the below example, we will use the following parameters: The first step is to set up bind to I have an OpenWrt router running 23. My ISP gives the wan interface single /128 IP, two DNS addresses and /64 PD all via DHCPv6. You can combine it with VPN or DNS encryption to Name: Intercept-DNS. 05 as a vlan aware switch Full set of config files for both devices below. One downside of adding the openwrt gateway to the global DNS is that there are folks scraping the DNS system for IPv6 hosts to probe. I already take one for my LAN (2a00:xxx:yyy:a006/64), i would expect to take a second one for the DMZ (2a00:xxx:yyy:a007/64). I recently updated to 19. I mean, are there already IPv6-only internet access points or will that be the case soon? If so, I guess my servers should be accessible by IPv6, right? Or could my reverse proxy also do the job here? Say, I am at a remote location, IPv6 only and try to access nextcloud. I was surprised how easy it was! I would like to thank all of you for that. Contribute to Wing-Siu/Openwrt-IPv6-DDNS-Script development by creating an account on GitHub. 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 For OpenWRT to provide the Pihole as DNS for all local IPv6 devices, go to Interfaces >> LAN >> DHCP Server >> IPv6 Settings and add the Pihole IPv6 address to Announced DNS servers. Hi, I'm having this issue with OpenWrt. this is one solution for getting around any DNS-based blocking from your ISP. However, it is not clear on how to achieve that. It forces client DNS queries to use an HTTPS proxy, so they are encrypted. Duck DNS - Install - the install page of Duck DNS for various devices. 1 Like. After researching it I found out that the DNS Hijacking setup should address that, which is available below: DNS Hijacking But the thing is, on that tutorial, it tells me to select IPv4 and IPv6 on the "Restrict to address LAN, static IP (192. :1" - These settings should Hi, I have Archer C7 v2 running OpenWrt 19. Yeah, most of my hosts do have EUI-64 addresses, but I've also got net. The lan of OpenWrt linked with primary router obtain the IPv6 address suc I have opened OPENWRT's MSS CLAMPING, but it seems that it does not work. To use DNS64 you can change your DNS to Cloudflare's DNS64 Google I have OpenWrt 22. are IPv6 rules including masquerading, I know, NAT6 should be forbidden but I think NAT6 is a good approach to hijack IPv6 DNS traffic and redirect Been using OpenWRT for some time now however I am having some problems with name name resolution and ipv6 addresses. com test), but the connection is soon interrupted by the relayed (proxied) RA DNS message (the following package is sent from the br-lan interface of openwrt, and received from a windows LAN desktop): How to serve custom dns to dhcp clients in openWrt? explains how to serve custom DNS server for DHCP clients on IPv4. 0. 1 as the DNS. The issue I have is one of my LAN clients (wireless) doesnt like IPv6 (a thank you for your help. 255. local'), and if I try to reach some machine at router network via its DNS-name like laptop. That said, I realise that android devices (for good reasons) only support SLAAC, so some kind of non-dhcpv6 solution would be nice too. My ISP supports DHCPv6-PD but it's a dynamic prefix with a very short lease time. Depending on the router, I have 2 different use cases: The DNS resolvers should be set globally for the entire router if there is only one LAN interface Hi, I'm using X86 as main router and Xiaomi Mi router for Dump AP but wireless does not get dhcp ip address from main router. IPv6: 2a10:50c0:0:0:0:0:ded:ff and 2a10:50c0:0:0:0:0:dad:ff; Contribute to Wing-Siu/Openwrt-IPv6-DDNS-Script development by creating an account on GitHub. I don't think there are any guarantees that I will remain on a Dynamic IP in the longer term. The carrier send the information using PPP. x, the 'Announced IPv6 DNS servers' and all of my internal machines, as well as the openwrt router have an IPv6 address beginning with 2a02:8071:ba8:31fo e. Upon looking at the DNS servers of a client, I see the following entries IPv4 DNS servers: <IPv4 address of pihole> IPv6 DNS servers: <IPv6 address of router> I suspect the second line AGAIN, if I in openWRT select the Ipv6 for dynu. My setup is a ZTE MF286R with a built-in modem. 0' option device 'lan-bridge' option ip6weight '1' option Hi, I am trying to setup IPv4+IPv6 (Dual Stack) and DHCP-PD, but the router does not get the IPv6 address. But then I can either enter the custom DNS servers there for the WAN You can do this locally and still use ipv6 upstream for DNS queries. Currently, with a fresh install (flashing a sysupgrade. In OpenWrt, DHCPv6 is handled by odhcpd. ISP is providing prefix that used to create global IPv6 for each device and for different sections as LAN and Wireguard using "IPv6 assingment hint", Like 192. I asked to be switched back to a Dynamic IP and they have kindly actioned my request. Here is 2. But Greetings forum I am having no luck blocking inbound IPv6 to my lan. 03. IPv4 Upstream. My issue is that the IPv6 address also comes with ISP advertised DNS resolver. 1 Connected: 10h 6m 43s IPv4 Upstream root@OpenWrt:~# traceroute 10. duckdns. 64. 6' config interface 'wan6' option proto Hello. But everything I tried did not really solve my issues or provide any clear 发现一个问题： 1、smartdns：开启1053和5335两个端口作为adg上游， 2、adg：重定向53端口到adg，adg监听端口为5300。 3、在passwall2中开启了IPv6透明代理(TProxy)，直连dns协议自选为127. I assumed that NATing into WG is done by (Referring to the image): Unbound can't resolve anything anymore. I ran tcpdump -n -i eth0 port 53 on the router and saw quite a bit of entries including this one: 23:16:02. 1#53 Name: my. example. 5 and this is my config of /etc/config/dhcp: c DoT port is unique matching both IPv4 and IPv6 traffic, so filtering by port works well. I tried remove ULA and set default ra ipv6 dns on Openwrt and still same issue,also need to access {prefix}::1 manually to fix IPv6 not reachable I'm using SLAAC for IPv6 on my LAN so I've configured OpenWRT to send router advertisements. One issue appeared to be no public IPv6; One issue seems to be DNS; As noted, the other seems to be asking how 6to4/6in4 passes traffic between v4/v6 routers (i. The tech support of my ISP is practically non-existenet, but I have gathered from them that they do in fact support IPv6. 2022 at 11:59. I already checked "Disable DHCP for this interface. Ipv6 works when clients are connected to ISP router, but does not when connected to openwrt. The end-clients (devices connected to the router directly, either via lan or via wifi) only show 192. This is not intended in my case as I'm running an (IPv4-only) DNS server on a separate machine, which is properly advertised via DHCPv4 option no. However, a few things regarding IPv6, I don't understand. Any ideas how to troubleshoot this issue? I'm trying to find a way that dhcpv6 hostnames are written into forward and reverse DNS. You can turn off the handout of IPv6 DNS address and you might not need it as DNS servers handout both IPv4 and IPv6 addresses if queried by IPv4. 2) Add IPv6 supported DNS server in your Configure OpenWr DDNS client to send updates to bind when the IP changes. This will not work with this IPv6 setup, and according to the manuals on the Internet you’ll have to install BIND (and have a dance setting it all up) for this to work. Now, if I use the old IPv4 APN of the ISP (and IP protocol set to IPv4), it connects and works fine: However, if I set it to the IPv6-only APN, it fails to obtain a prefix: As you see, I've left it for a good while, but still no prefix. If the interface is down then OpenWrt automatically will remove those DNS servers from the list of name servers it uses. 449s) using ipv4 Test IPv6 without DNS bad (0. 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