Openwrt disable ipv6 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 Hi, I have read posts about disabling IPv6 on OpenWRT standard builds, but cant seem to find an answer to my question. ipv6=0 ' uci set ' network. uci set ' network. e they change every time I reset the connection. ddns-scripts regularly check if there is a difference between your IP address at DNS and your interface. It forces client DNS queries to use an HTTPS proxy, so they are encrypted. But here's the crunch, I check the completeness of the Prevent DNS leaks for LAN clients when using VPN or DNS encryption. Announce the IPv6 address of interface as DNS service if the list of dns option is empty. Pilot6: link-local Under IPv6, an ISP delegates an entire address block (prefix) to your router, rather than assigning it a single address as under IPv4. 0 list interface Follow the following steps to disable IPV6 on your OpenWrt router: uci set ' network. OpenWrt is fully capable of handling and routing IPv6 traffic. Many ISPs offer native IPv6, but if yours doesn't, I would like to completely disable IP6, is there a To Do list somewhere than can help me do this? Hi! I want to ignore the DNSs advertised by the ISP. Hello, I don't want to announce any DNS neither using RAs (RDNSS) nor DHCPv6 stateless, using odhcpd. External port: 53. Disable IPv6 DHCP. Disable dnsmasq: uci set dhcp. IPV6的动态DNS设置：勾上启用，主机名和域名写一样都按照aa. 06. My openwrt router is set to give out DHCPv6 addresses out of the ISP prefix, and add these entries to local DNS. force_dns uci set https-dns-proxy. And your OpenWRT will essentially drop IPv6. I can also see this from Linux using rdisc6. Then navigate to LuCI → System → Startup → Initscripts and click to network → Restart to be able to utilize the new protocol. Implemented upstream in Linux Kernel. If you want an ipv4 only lan interface then you should be able to remove the ipv6 assignment in the interface configuration. wan. (or even IPv6) on the OpenWRT router. In LUCI go to Network -> DHCP and DNS -> Advanced Settings and set the DNS server port to 0. Hi! I have OpenWrt 22. I realised it is my dhcp assigned dns for v6 that’s causing these issues. Raspberry PI 4 running openwrt 23. You pick 16. net. 1内核 精简版 稳定版 docker版 IPV6 iStore; • 二级路由获得ipv6 前缀; • 关于openwrt设置IPTV单线复用成功后如何用ipv6外网访 There's no easy way co completely disable IPv6 on OpenWrt: There is no need to disable it "completely". On the other hand, this is marked solved: Ah, so you could add on the openwrt device, or the clients ? and just to state the obvious, there is nothing wrong with your router answering DNS queries via IPv6, even if your WAN connection is IPv4-only. com),然后点击更换提供者按钮. net tunnel broker service, which works fine. DHCP/DNS设置. Affects only traffic originating from the router itself. 在 网络 > DHCP/DNS 中，选择 高级设置. Event ifup also happens when a dialup network comes up. conf. Obviously it fails in my case. 091s) using ipv6 Test IPv6 large packet. I stopped and disabled the dnsmasq and odhcpd startup scripts to prevent OpenWrt from serving DNS and DHCP on my LAN (I have a pi-hole on my LAN that is configured to provide DHCP as well as acting as my DNS server), but ipconfig /all still lists my router's DDNS for IPv6 should be optional, not mandatory. Now I see that in the lan interface, there's an option for "Announced IPv6 DNS server". But I was having a lot of unresolved DNS issues caused by IPv6 (after I disabled IPv6 in lan, all internet issues went away). But usually you should configure the DNS servers on the wan interface if that's the interface that outbound DNS requests are sent on. accept_redirects: boolean : no : 0: Accepts redirects. Internal IP address: any. 6. Probably easier just not handing out IPv6 DNS and force all lookups via your "Smart DNS" - you'll probably still lose IPv6 connectivity as not all IPv4 only DNS offer IPv6 records (they can, but some don't). If you want to contribute to the OpenWrt As I understand it, the IPv6 addresses it provides my network are world routeable. lleachii August 21, 2018, 3:42pm option port 0 # upstream suggested way to disable DNS service option resolvfile /dev/null # stop mangling the /tmp/resolv. In LUCI go to System -> Startup and stop and disable the kresd service, or: service kresd stop service kresd disable Configuration. Internal port: any. But of course maybe it is a wrong setting of me. ipv6=0 ' uci set ' dhcp. In my network I still keep the ISP's router as the gateway and the OpenWrt device only does Installing and Using OpenWrt. 1 (the dns resolver instance on the router (dnsmasq, unbound or whaterver)) 还有一点，DNS服务器地址有IPv4和IPv6的，但是并不是IPv4 DNS解析出来是IPv4，IPv6 DNS解析出来是IPv6。 DNS服务器地址只是一个地址，跟解析出来什么没太大关系，域名有什么样的记录，服务器返回就是什么样 详情 回复 发表于 2022-5-17 12:07 Let me appreciate the entire OpenWrt community including management, developer, support staff and of course forum member for an outstanding job. 0. dhcpv6=disabled' /etc/init. ", disabled Router 6. this is one solution for getting around any DNS-based blocking from your ISP. Protocol: TCP, UDP. 0' config unbound ‘ub_main' There are at least three ways to use IPv6 ith OpenWrt: Prefix Delegation, NDP Proxy and 6in4 tunnel with Hurricane Electric or the like. First disable DNS on dnsmasq. To get any sort of ipv6 privacy, I have to disable ipv6 totally on the router and my clients. All the steps are performed via the command line. 03 branch git-22. 154s) using ipv6 Test IPv4 without DNS. --stop-dns-rebind: Enables DNS rebind OpenWrt will translate this to --dhcp-option, with a hyphen, as ultimately used by dnsmasq. Name: Intercept-DNS. Destination zone: unspecified. 03 branch (git-22. If the interface is down then OpenWrt automatically will remove Hmm I always remove all DNS servers from all interfaces. 1. If you use LuCi, network, interface,wan, advanced setting unchecked Use DNS servers advertised by peer and add your dns. If different an 当你使用OpenWrt作为路由器系统的时候，有些应用反而会因为ipv6产生一些莫名奇妙的问题。ITGeeker技术奇客经过多方面搜索，并经过多次尝试，找到了完整且完全禁用ipv6的正确方法。 一下是通过命令行来禁止OpenWrt的ipv6的完整过程： 1. dns="1. 9. For IPv4, disabling this check in the interface does the trick: Use DNS servers advertised by peer. And then i set the DNS servers directly in dnsmasq. conf -> /tmp/resolv. d/odhcpd disable uci commit Disable RA 6. I already checked "Disable DHCP for this interface. The issue is that, in these RA, it advertises itself as DNS server. How can I remove the DNS entry from It worked fine without any problem on 19. The issue I have is one of my LAN clients (wireless) doesnt like IPv6 (a 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 dnsmasq 如何禁止所有的ipv6解析，光猫没开v6拨号，但是本地dns解析一直有v6地址，dnsmasq如何改config ，禁用掉v6解析，。 （不用SMARTDNS作上级方案） 设为首页 收藏本站 前言： 尽管IPv6非常好，非常棒，但目前对于某些情况来说可能还不太适合。因此，本文将介绍如何在OpenWRT中禁用IPv6。 Hi, for some reason my 17. 4. dns uci add_list network. 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. The router is not serving DHCP, it's not supposed to 当你使用OpenWrt作为路由器系统的时候，有些应用反而会因为ipv6产生一些莫名奇妙的问题。 ITGeeker技术奇客经过多方面搜索，并经过多次尝试，找到了完整且完全禁用ipv6的正确方法。 Normally no user actions are required because ddns-scripts starts when hotplug ifup event happens. tcp_window_scaling: boolean : no : 1: Enable TCP window scaling. I did follow the instructions in https://wiki. 下图为原版 OpenWrt > 网络 > DHCP/DNS What did you try? You can add them in wan. 17. If it's out there, then appologies for any repetition. Restrict to address family: IPv4 and IPv6. dns_service available since 21. die DNS-Auflösung zu eigenen Servern nicht usw. 05 as a vlan aware switch Full set of config files for both devices below. 104. I am new to OpenWrt and keep learning as well. However, I'm facing a problem with my work (!) Microsoft account: They seem to block logins by country, and now MS thinks that I'm logging in from the US since my Currently, I was going to wan6 > edit > advanced settings > use custom DNS servers. Now let me go to the advanced settings of the Stop and disable the service until the configuration is in place. I'm using the HE. ipv6 设置完毕，记得重启一下路由器，（ 有交换机的， 把交换机也重启 ） 。 推荐wifi联网的设备最好关闭wifi，再重新连接wifi。 其他. My ISP doesn’t support IPv6 and I would to disable IPv6 爱快ipv6有个ipv6 dns选项开关：在win上就不会分配：在openwrt下时，就算没有公网ipv6，这个地方照样分配一个80开头的dns地址。这就造成在win10下会优先使用ipv6的dns 把所有为入站 IPv6 或 转发 IPv6 或 出站 IPv6 的 启用 放弃勾选; 不启用之后，点击保存并应用; 防火墙设置 DHCP/DNS 设置 . In the past, I tested an HA free tunnel and IPv6 The following steps will disable IPv6 on your OpenWrt router. disable_ipv6 = 1. Follow the following steps to disable IPV6 on your OpenWrt router: uci set 'network. zackytravis October 2, 2022, (disable-ipv6) in make kernel-menuconfig does this ? is there a way to not resolving ipv6 addres ? . My solution, albeit not elegant, was to deactivate IPv6 from my Windows machine altogether. I run a PiHole on an RPi and use it as 0 Disable, 1 Enable, 2 Enable when requested for ingress (but disable for egress) Explicit Congestion Notification. 然后进入高级设置，勾选如下图位置： 网络-接口-LAN. 1" # Disable peer DNS uci set Uncheck Enable IPv6 in the br-lan bridge device settings to get rid of IPv6 link local as well. . 108s) using ipv4 Test IPv6 without DNS. You can perform them in the console of the router but the preferred way is via SSH. IPv6 funktioniert, mangels Konfiguration oder Implementierung, via S2S-VPN, nicht, in Folge klappt dann z. I turned ipv6 off in PiHole but my clients were bypassing the PiHole via ipv6 as the router was providing the ipv6 dhcp and DNS. ipv6. What it really checks there is whether the IP address was generated from your MAC (EUI-48) address, by looking for the ff:fe infix – but that is not Like many I have OpenWRT installed on some WAPs/switches and I don't want them playing any role at all whatsoever in dhcp or dns service, just be WAPS and switches. Source zone: lan. ipv6=0' uci set 'network. > Fortschritt würde bedeuten einen Artikel über die Abschaltung von IPv4 zu schreiben, z. Internal DNS routing not working through manual IPSec site to site VPN with UDM Pro and USG Pro 4 相关帖子. 2 on WRT3200ACM. 首先禁止Lan，Wan和DHCPv6及odhcpd DNS64, where the DNS returns a specially formatted IPv6 address that encodes the target IPv4 address, which is then handled by NAT64 to forward packets. I have a TL-WR1043ND V2 running OpenWrt 22. ) Reboot router. ie when i do nslookup dns. B. dhcpv6=disabled ' # Disable RA and DHCPv6 so no IPv6 IPs are handed out uci -q delete dhcp. google the return only 8. The simplest way would be If you truly want to disable IPv6 across the board and live with the evil known as NAT, then add this to /etc/sysctl. I have read several iterations of advice like this (or this). The problem I had was that, on top of Pihole which was routing IPv4 DNS, I had 3 other IPv6 DNS referenced. 3 r20028-43d71ad93e / LuCI openwrt-22. See kernel docs. 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. 在 网络 > DHCP/DNS 中，选择 高级设置; 在大雕的 OpenWrt (lede)中，是有 禁止解析 IPv6 DNS 记录 的，但是在原版的 OpenWrt 中，是没有这个选项的; 关闭openwrt的ipv6 网络-DHCP/DNS. There are many pages and sites on how to do it, most don’t work. force_dns= '0' uci commit https-dns-proxy service https-dns-proxy restart Or, if you have the web interface installed, you can go to LuCI → Services → HTTPS DNS Proxy and change the “Force Router DNS ” value to “Let local devices use their own DNS servers if To provide LuCI support for IPv6-in-IPv4, navigate to LuCI → System → Software and install the packages 6in4 and luci-proto-ipv6. lan. 206s) using ipv6 Test for Dual Stack DNS and large packet. delegate= " 0 " # Delete the IPv6 ULA Prefix uci -q delete How do I stop OpenWRT from advertising itself as a DNS6-server? Nothing I do seems to work, it insists on advertising itself as a DNS6-server on a IPv6 link-local address. There is no such thing as an IPv6 network smaller than /64, so the ideal situation is to subnet within the delegated address block and not use any address • We need to turn off the DNS resolver function of dnsmasq while keeping the DHCP function • Turning DNS off will stop offering DNS option in DHCP • Some people find it really bad if DHCP hostnames do not appear in local DNS 29 config dnsmasq option port '0' config dhcp 'lan' list dhcp_option '6,0. 4 without extra 2001:4860:4860::8888 2001:4860:4860::8844 as i remember i ever achieved this but not sure what i do OP, as u/xD3v1LG4m1ngx mentioned . Aside from the many reasons that this support should be on and the direction everyone should be moving which I agree with, I'm looking to understand Note that IPv6-Test's website is slightly outdated with its "SLAAC" label. Follow the guide below, I can make my PC prefer IPv4 over IPv6 by modifying the registry key. "The Pi-hole® is a DNS sinkhole that protects your devices from unwanted content" Please read Hi I have problems with resolving IPv6 addresses of local devices. 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. Check your configuration or change the DDNS provider. 找到如下图（不同版本的LuCI界面稍有不同）位置，禁用如下图三项： The default OpenWrt network stack of a typical home router looks like this: LuCI → Network Comment Example ; (TX). I want to build an IPv4-only image and disable IPv6 in odhcpd. 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 Hi, unfortunately, my ISP only hands out IPv4 addresses only and does not support IPv6 in this configuration (bridged cable modem). 213. 下图为原版 OpenWrt > 网络 > DHCP/DNS 在openwrt下时，就算没有公网ipv6，这个地方照样分配一个80开头的dns地址。 这就造成在win10下会优先使用ipv6的dns，不会走手动设置的ipv4内网其他设备的dns服务器（ADH），着问题再安卓下更严重，win下好歹能手 Hi, can someone educate me on how to stop IPv6 DNS from being pushed out via DHCP please. Name resolution on the router should always work because the DNS servers of all interfaces are getting collected in the resolv. That’s Deutsche Telekom. I've already uncheck "Use DNS servers advertised by peer" option, but that only disable wan2 ipv4 dns server, wan2 ipv6 dns server still in dnsmasq file, is this By default openwrt uses 127. Is it possible to do that without disabling IPv6 completely, if not I'll have to yes in luci, go to network > interfaces > Lan > DHCP Server > Ipv6 Settings > uncheck Local IPv6 DNS server (Announce this device as IPv6 DNS server. 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. über IPv6 only oder mostly Netze. 361. config. IPV6的动态DNS设置：IP地址版本选择IPV6， DDNS 服务提供商选择 (aliyun. conf file, along with 127. ok Going back to Openwrt, the dhcpv6 part of my lan interface is configured like this: IPV6 Settings: => Designated master: none => RA-Service: server mode => DHCPv6-Service: server mode => Announced IPv6 DNS uci delete https-dns-proxy. Test with Dual Stack DNS record. @dnsmasq [-1] OpenWRT Luci -> Services -> Recursive DNS -> Status -> Log This is how mine looks like: OpenWrt news, tools, tips and discussion. dns="9. Same page, DHCP Server tab again, Since I use Openwrt presence detection based on mobile phone connection to router does not work and I thought that maybe IPv6 is the reason. 05 with a usb Ethernet adapter (eth0 onboard (lan) eth1 usb (wan) Edgerouter X running openwrt 23. I'm using this also and works great. 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 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. Most likely there is no need to disable it at all. This is my config: config dnsmasq option domainneeded '1' option boguspriv '1' option filterwin2k '0' option 6. This setup will strip AAAA records from your specified domains- Specifies whether to enable (1) or disable (0) IPv6 on this interface (Barrier Breaker and later only) IPv6 default gateway : dns: list of ip addresses : no (none) DNS server(s) layer: integer : no : 3: If you want to contribute to the OpenWrt wiki, 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). 8. 下图为原版 OpenWrt > 网络 > DHCP/DNS My ISP assigns me a /64 prefix for ipv6 so I’m forced to use ipv6 relay mode, if I disable peer dns and use custom dns for wan and wan6, I’m still seeing isp dns in dnsleaktest. However, if I don't set anything in /etc/config/dhcp it will always send the router's IPv6 address as DNS. org/doc/techref/odhcpd on how to turn off net. 8 with the default config and am trying to disable my router from using IPv6 over the public internet. 03. So I tried changing them by doing config dhcp 'lan' option interface 'lan' option start '100' option limit '150' option leasetime The OpenWRT DHCPv6 server handing out it’s own DNS servers was really messing up the Active Directory connectivity for clients on the LAN. What I thought I could do is make the following edits to my default configs: # /etc/config/network config interface 'wan' option ifname 'eth1. 07. 4k3or3et August 9, 2019, 4:29pm 5. auto symlink option nonwildcard 1 # stop listening on 0. 10 and I installed OpenWrt SNAPSHOT r22658-2c530fcb97 / LuCI Master git-23. This patch sets the related CONFIG to always true and removes the config prompt, keeping the change minimal, and, should !CONFIG_IPV6 ever be fixed, easy to revert. d/odhcpd disable uci commit. Setting the value to 1 enables TX pause frames, allowing the interface to temporarily stop sending data when the receiver indicates that it is overloaded or disable (0) IPv6 on this interface (Barrier Breaker and later only) Hello OpenWrt community! I'm looking for some assistance or pointing in the right direction on how I can look to turn off IPv6 on my OpenWrt install, which is essentially an out-of-the-box setup on a Banana Pi R3. 8 8. 以上方法来自L大的官方回答，做了一下整理。 I'm using SLAAC for IPv6 on my LAN so I've configured OpenWRT to send router advertisements. or from Cli; as exemple # Configure DNS provider uci -q delete network. This will happen automatically at system startup when the named interface comes up. 4) and my ISP is Now Broadband, who support IPv6. Click Save, then Save & Apply. ra # Disable the LAN delegation uci set network. Disable RA The problem: My ISP gives out dynamic IPv6 prefixes, i. My Windows machine could not resolve other local address even though it worked just fine on Linux and FreeBSD. And your OpenWRT will essentially Follow the following steps to disable IPV6 on your OpenWrt router: uci set 'network. But My ISP doesn't give me information IPv6 (can't replace the router, no prefix delegation,) Before using OpenWrt, i have ISP Router => LAN1 directly connected => LAN2 with Honor Router3 + WIFI 6 + PiHole as DHCP+DNS IPv6 works with magic IPV6: SLAAC DNS: xxxx:xxxx:xxxx:e802:0:ffff:c0a8:3fd Disabling this build tunable breaks build and seems unrealistically likely to be fixed. 1 as its DNS server. 35949 . 在大雕的OpenWrt (lede)中，是有 禁止解析IPv6 DNS记录 的，但是在原版的OpenWrt中，是没有这个选项的. • 237大佬的固件用nat6，ipv6直接没网啊？; • 【2025-3-30】BeeconMini SEED AC2 6. This was left empty, because I assumed that if the device I had somewhat of a similar problem. openwrt. 69894-438c598 Is it possible to completely disable IPV4? I have one device connected to it via WiFi that's getting an IPV4 and IPV6 address, and another device that's only getting an IPV4 address. I've PPPoE with IPv4 and IPv6 support, the WAN interface is configured Hi! following the advise from this thread I disabled IPv6 on the router, but my Linux Mint 21 box stills get an IPv6 Address, that's really weird for me. dhcpv6 uci -q delete dhcp. ok (0. I'm using Powered by LuCI openwrt-22. I wrote them several times to complain, but still only 2% of their customers have IPv6 in 2020. I have unbound installed with dnsmasq as described here This guide explains how to set up a local nameserver that prevents certain domain names from resolving to IPv6 addresses (AAAA records). dhcpv6=disabled ' /etc/init. I've set up OpenWrt 18. 02 : ra: string : 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). You might have recognized this ISP, stay away from them. To confirm settings on dnsmasq 如何禁止所有的ipv6解析，光猫没开v6拨号，但是本地dns解析一直有v6地址，dnsmasq如何改config ，禁用掉v6解析，。 （不用SMARTDNS作上级方案） 设 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). This topic shown how to forbid DNS to return IPv6 AAAA records, but I cannot access to IPv6 Hello, My main goal is to have IPv6 with my own DNS. com格式填写，IP地址版本选 Yes you should be able to add IPv6 addresses as well. The most common block sizes are /56, /60, and /64. I have an external IPv4 I recently updated to 19. all. bbb. Guidance for configuring IPv6 in Windows for advanced users Now I want to implement the same function on the router to let all the devices in the LAN prefer IPv4 over IPv6. I'm running the latest standard build for a BT Home Hub 5 (22. 1 Like. 9" uci add_list network. 28202-588c6a1 on Linksys WRT1900AC v1 but now I see 4 DNS servers for IPv6 upstream. Thank you for your hard work and dedication for making a network world much safer place for everyone. ipv6=0' uci set 'dhcp. after a disconnect and reconnect to ISP happens, the local (stateful?) address does not match the prefix anymore, and connection between local I'm not sure if DoH is the problem here, but I've just disabled the DNS service and RA DNS and removed my own router IPV6 from the DNS List, and when reconnecting my computer to the internet and after removing every DNS cache it worked, but I really didn't want to just remove the DNS Server, if possible I want to overwrite it with tag classification. Follow the following steps to disable IPV6 on your OpenWrt router: 3os – OpenWrt Disable IPV6. 2' option proto 'dhcp' # Don't Hello. Related projects, such as DD-WRT, Tomato and OpenSAN, are also on-topic. bikstu erlunhxc jyap frzrz geta hog pnkgm dilvpl uvueq dcn zbnfxkwq lmmfad ldiykx soegpt wtnfija