Radvd dnsmasq. Note that replacing a config file with your own implies .

Radvd dnsmasq 13 on AC3100 I didn't find location to configure the dhcp lease time for ipv6 on the web interface. I will definitely investigate the RA of both radvd and Dnsmasq in more detail. 同时根据网络上对于Dnsmasq软件相关技术叙述文章，该技术方法也可用于1000台以下规模的动态地址分配网络环境部署，可以为中小企业提供很好的内部ipv4/v6双栈化组网解决方法。 结合nat技术，也可以为中小企业提供互联网ipv4/v6双栈化网关功能。 Jun 12, 2014 · As [Spec_RADVD] is proposed to use radvd as the preferred reference implementation for IPv6 Router Advertisements and SLAAC, this spec is to allow tenant VM to obtain stateful dhcpv6 address or stateless dhcpv6 address by Dnsmasq when ipv6_address_mode of a tenant subnet is set. Maybe you should try if it shows when you disable DNSmasq and file a bug report on Github. For your address plan, get a globally routable prefix from your ISP, or generate a unique ULA prefix to use. i'm running it via dnsmasq. I'm reviewing the updated documentation and will migrate to dnsmasq tonight, pushing logs to a remote database for better observability. So at best they advertise my local dns servers but can't advertise a gateway. Note that replacing a config file with your own implies Nov 4, 2020 · 申明：本笔记仅适用于嵌入式平台路由器的IPV6环境搭建，介绍WAN口的有状态和无状态获取以及LAN侧的DHCPv6环境如何搭建 一、运行环境 操作系统平台：Windows7 + Linux，Linux内核要求要支持IPv6功能，2. Router Advertisements (Mode) The mode selection contains some predefined settings for radvd, which influence a set of configuration options and are intended for specific implementation scenarios. g. conf Since I don't run the Dynamic DNS daemon, I didn't touch its configuration. But dnsmasq offers a more complete setup. Dec 16, 2015 · If using a version of dnsmasq older than 2. May 8, 2025 · Wait, so for Dnsmasq DHCP, are we not supposed to rely on radvd anymore and instead need to use the Dnsqmasq RA function? NetworkManager may fail in >>> this scenario. conf. confにも設定する箇所があるので控えておく 予備DNSはデフォルトは空欄なのでそのままでもよい LAN側IPアドレスとはつまり内側のローカルLANに設置しているLinuxサーバーのipv6アドレスを入力すればよい 6relayd is a daemon for serving and relaying IPv6 management protocols to configure clients and downstream routers. In normal operation, the pfsense WAN gets a /128 with a 2001: prefix and the LAN get /64 2601: prefix. Now I wanted to move from radvd to dnsmasq for IPv6. of config for ipv4 Oct 7, 2019 · Dnsmasq configuration for DHCPv4 and stateful DHCPv6 In some situations, you want to run your DHCP server for IPv4 and IPv6 to get full control of your network. I downloaded the radvd package for Natty which does support DNSSL announcements. 252. This concerns exactly point number 3 from my rant: We have no types for DHCP options in DNSmasq, since they are generic. It could call a user-provided script that sends a set of local-data to Unbound when an aleatory lease is granted, and removes it on expiration. In this situation, use the Router Advertisement Daemon (radvd) instead, which can be run alongside dnsmasq. Apr 8, 2015 · New asuswrt-Merlin user here, but longtime dd-wrt user Just setup my new rt-ac87r with the latest asuswrt-Merlin firmware, and I have been having issues with IPv6. May 5, 2020 · Or a "None" checkbox. Which is the best solution? And if RADVD is better, should I enable RDNSS and ULA? Custom settings using DNSMasq or radvd+dhcp6s If you prefer you can use DNSMasq, for router advertisements, instead of Radvd (disable radvd, dhcp6c and dhcp6s on ipv6 tab). 4）下配置radvd和dhcpv6 转载 最新推荐文章于 2025-04-14 15:56:33 发布 · 1. You lose ability to control it properly via uci/luci/ubus/netifd and may encounter some I don't see a way to have RAs only for certain clients like radvd (from radvd. I tried looking at the DD-WRT wiki, but this only displayed instructions for tunneling or other methods where native support isn't available. If the option is not present or set >>> off, then radvd is used. However, in actual use, IPv6 frequently drops or just won't connect. This works on an > IPv6-only network. Interesting, thanks for sharing that information. I have tested it with my static GUA prefix and it worked like expected. 154. Feb 6, 2015 · The services executed by the router such as minidlna or dnsmasq relies on dynamically-generated config files. Bookmark the permalink. should I set listen-address to my IPv6 address?) I can set up my own RA message through radvd,dnsmasq etc, running on the network, but neither provides an option to point to an upstream router. /configure --prefix=/usr/local --sysconfdir=/etc --mandir=/usr/share/man See configure --help for additional command line arguments. The newest version (maybe dndnsmasq-2. I've setup slaac and dhcpv6, as well as RA-names. Historically the software package radvd was commonly used for just the RA-part of this. 6版本以上均可本 环境版本：Windows7 + Fedo This causes radvd to advertise the correct subnet but with a /59 length. In the initial configuration I tried, I Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in Apr 5, 2013 · Enable RA: (leave unchecked - radvd has gone, this just writes some stuff to dnsmasq. Apr 5, 2013 · The RTR-ADVERT lines show that dnsmasq is doing ipv6 router adverts. conf for IPv6 are # Enable IPv6 Router Advertisement (RA) features. 124. Run 'make' and 'make install'. RA is set to use SLACC, DHCPV6 Server is disabled. 在之前的文章里ra广播采用radvd软件，不用了，dnsmasq也可以，看到没，dnsmasq全能。上面那句enable-ra就是开启dnsmasq的ipv6广播功能 以下内容分运营商,dhcpcd与wide-dhcpv6-client二选一 我在电信宽带尝试了20个小时wide-dhcpv6-client没有成功，在联通宽带尝试了5个小时dhcpcd没有成功。然后在两个宽带换成另一个后 May 19, 2018 · DNS servers, regardless of whether they are addressed with IPv4 or IPv6 addresses, can serve both IPv4 and IPv6 DNS. A Dnsmasq DNS & DHCP Dnsmasq Manual Dnsmasq is a lightweight DNS, router advertisement and DHCP server. IPv6 is the next generation IP addresses to ensure there are enough address across the Internet. That went well. EDIT: I read somewhere I should "set your WAN to request a /56 and pick a static /64 for LAN Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in Oct 26, 2015 · This entry was posted in debian and tagged debian, dhcp, dns, dnsmasq, dnssec, ipv6, openwrt, resolver, sysadmin, unbound by simon. Installation: ============= Run configure, e. IPv6 will not automatically come back at this point without some user intervention. conf / radvd. Yet that would be wrong in a situation where RADVD is still used for RAs instead of DNSmasq. Jan 6, 2025 · I can't see a way using dnsmasq or radvd to specify the VRRP virtual_address that's configured in keepalived as the default gateway to advertise in RAs. Disable dhcp6s; dnsmasq will do it. enable-ra # Advertise delegated prefix based on the IPv6 address of eth0. Oct 30, 2019 · 结合之前修改radvd配置后连接在主路由的Pixel也会掉线重连这个现象，猜测可能是NDP在AP上出了啥问题。 在尝试修改各种EA6500上的网桥广播配置无果后，找到了通过Dnsmasq来代替radvd配置IPv6网络的方法，完美解决掉线。 I want to enable IPv6 on my network. It sounds like you have all of the pieces in place. 39) * Using the --interface option of dnsmasq, but I saw somewhere You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum Jul 21, 2025 · [SOLVED] Router Advertisement service missing from UIThat seems like a real bug. Dnsmasq is a lightweight and easy to configure DNS forwarder and DHCPv4/DHCPv6 server. This would then remove the DNS servers from dhcpd. 结合之前修改radvd配置后连接在主路由的Pixel也会掉线重连这个现象，猜测可能是NDP在AP上出了啥问题。 在尝试修改各种EA6500上的网桥广播配置无果后，找到了通过Dnsmasq来代替radvd配置IPv6网络的方法，完美解决掉线。 When the prefix changes, dnsmasq should send (like radvd is doing) a zero lease time RA for the old prefix. set IPV6= link-local ONLY mode 3. Recently my ISP started offering native IPv6 using IPv6 Prefix Delegation and I want to offer IPv6 connectivity to my LAN clients using dnsmasq. If there ever was a solution to this, it has to be upstream in DNSmasq. The question is whether dnsmasq > could do the same thing for RA while continuing to do the dhcpd/dhcpd6 and > dynamic dns stuff so that it was unnecessary to run radvd. 48 does not support IPv6 dhcp but does handle IPv6 for dns and CentOS 6 does include radvd, I also propose that a libvirtd. Since dnsmasq-2. I am looking into an alternate method of obtaining the dnsmasq version but the dnsmasq version will be the deciding rule for radvd versus dnsmasq usage. Seems to work but seems by default it logs every router announcement/solicit. conf / dhcpdv6. They define the type of client deployment used in your network. This section guides you on setting up IPv6 with DHCPv6 with Prefix Delegation in DD-WRT router. For IPv4, it’s straight forward but for IPv6, you have to know some differences. Dec 20, 2014 · Recently my ISP started offering native IPv6 using IPv6 Prefix Delegation and I want to offer IPv6 connectivity to my LAN clients using dnsmasq. I wonder how the roles of these two services are distinguished? for example: Is it possible to implement dns and dhcp services only by dnsmasq service in IPv4 environment? Does odhcpd only provide DHCPv6 service in IPv6 environment? The WAN port obtains the operator's IPv6-PD The question is whether dnsmasq > could do the same thing for RA while continuing to do the dhcpd/dhcpd6 and > dynamic dns stuff so that it was unnecessary to run radvd. Configuration: ============== See INTRO. conf in addition to the /59, resulting in the following: interface wlp3s0 { AdvSendAdvert on; Jan 22, 2025 · 在CentOS系统下配置radvd来实现IPv6网络自动发现，可以大大简化网络设置过程。radvd是一个用于实现RFC 3596的RFC 3776的IPv6路由器公告（Router Advertisement）功能的软件。通过radvd，可以自动为客户端分配IPv6地址，并配置默认网关和DNS服务器。 以下是配置radvd的详细步骤： 1. The question is whether dnsmasq >> could do the same thing for RA while continuing to do the dhcpd/dhcpd6 and >> dynamic dns stuff so that it was unnecessary to run radvd. 7: Dnsmasq DHCP/RA for small and medium deployments and Kea/Router Advertisements (radvd) for bigger deployments (requiring seamless HA support). Cudos to Cedrik: you can even import CSVs May 8, 2025 · The goal for 25. box and works well with all clients. 56test18 and later) supports IPv6 well. In /etc/dnsmasq. 在计算机网络中，协议是控制数据传输的规范。网络协议是指在计算机网络中进行通信的两个或多个应用程序之间的规则。Linux操作系统也有很多网络协议，其中一个重要的协议是radvd，本文将探讨radvd的作用和配置方法。 If it is, then > DHCPv6 support is unlikely and disabled. Contribute to karmab/kcli-plan-dnsmasq development by creating an account on GitHub. > However, something has come up and it will be a week to ten days > before I can get it in shape to submit. As long as DNSmasq is listening on IPV6 port 53 (both udp and tcp), and as long it distributes AAAA (IPv6) records, you should be fine to advertise it with radvd. It is considered the replacement for ISC-DHCP in small and medium sized setups and synergizes well with Unbound DNS, our standard enabled forward/resolver service. 7k次。本文详细介绍了在Linux环境下，如何配置dnsmasq以支持IPv6，包括server端和client端的设置，以及不同配置选项（如dhcp-range、ra-only、ra-stateless、slaac）对IPv6地址分配的影响。在pppoe ipv6场景下，探讨了pppoe-client的配置和测试过程，以及遇到的问题和解决方案。 Dnsmasq provides network infrastructure for small networks: DNS, DHCP, router advertisement and network boot. DNSmasq thinks "01:04:11:22:33:44" ist a string and sends it verbatim, as does ISC DHCP. 7k次，点赞7次，收藏17次。本文详细介绍了radvd无状态配置的各项参数，包括接口配置、路由通告转发、最大及最短路由器通告间隔、MTU选项、邻居可到达时间等。同时，深入探讨了前缀配置、自治地址配置、有效生存期等关键概念。 Nov 26, 2023 · New member Joined Nov 26, 2023 Messages 29 Aug 30, 2025 at 20:00 #3 WORKAROUND (50% confidence) 1. On my home server, I set up radvd to advertise my local ULA Apr 14, 2025 · linux radvd参数,Linux（RedHat6. conf in an attempt to emulated radvd for *simple* ipv6 networking - we're not doing simple!) Dec 15, 2019 · 2. Then you need a router advertisement daemon on the system for your internal network. Aug 26, 2015 · The services executed by the router such as minidlna or dnsmasq relies on dynamically-generated config files. > > Now, this works with radvd and dnsmasq. Mar 18, 2025 · DNSmasq supports Router Advertisements in conjunction with DHCPv6. reboot router in ROUTER mode 2. You can use the Google IPv4 DNS servers to get IPv6 addresses from DNS. * Stop using the dummy tap trick, and set the MAC address directly on the bridge: it is possible since quite some time it seems, even if then there is the problem of the bridge not being RUNNING when empty, contrary to what [2] says, so this will need fixing (and this fix only happened in 3. May 25, 2025 · This step-by-step guide shows how to set up DHCPv6 on your OPNsense 25. You can use either radvd or dnsmasq. But dnsmasq Dec 24, 2020 · You can leave out the radvd configuration, since you configured dnsmasq to do the router advertisement. "no address range available for DHCP request via br2" is because 'do dhcp' is set false for that vlan and it no longer writes a 'no-dhcp-interface' to allow people to override this in the custom file. conf can set "deprecated" as life-time in the dhcp-range, but that would make all RAs going out have a time of 0s. TP-Link gives me two ways to get IPv6 on my network: RADVD and DHCPv6. restore AP-mode This seems to turn off radvd & RDNSS service, but dnsmasq is still running (why?) ISSUES Very risky to switch modes like this and guess IP addresses before & after . 1. kcli-plan-dnsmasq. 支持 ipset，不然后怎么替换掉 dnsmasq 呢。 3. conf(8) and radvd. For RAs we would need to run additional dnsmasq processes in router namespaces. If you have enable-ra in your dnsmasq as the guide you reference suggests, then dnsmasq should be sending router advertisements and you do not need radvd. 64, stateless address autoconfiguration (SLAAC) may not work as expected and VMs will not receive an IPv6 address. At my house it provides DHCPv4, DHCPv6, tftp, and DNS services for my all my LAN clients. Set 'Additional Dnsmasq Options: Sep 21, 2018 · How to configure DD-WRT to fully use IPv6 for your WAN and LAN (and learn a bit of IPv6 itself in the process!). RADVD for IPv6 assignement, DNSMasq for DHCP handing out DNS for IPv6 clients - how to do? - YouTube Post by Sean Boran Hi, I'm doing sdome DHCPv6 tests and have a few questions :-) First is it is possible to disable v4 respond, and only respond to v6 requests? When testing I dont want to disturb a v4 dhcp already running. The first thing I did was to turn off the built-in DNS/DHCP server dnsmasq, which is enabled in the default build -- my local network already has these services. make install You might want to edit config. The most common configuration mode is called stateless configuration. 201#53 Jan 2 00:12:52 OpenWrt daemon. It can be globally enabled or disabled, so it would be safe to add. e. 5:) "By default radvd will send route advertisements so that every node on the Note that more recent versions of OpenWRT use uci more (the files in /etc/config/) and as such things set in the normal configuration file for a service may be overridden (eg /etc/config/dnsmasq overrides /etc/dnsmasq. With IPv6, the clients don’t need a DHCP server to retrieve an IP address. Then clients will look for additional options from dnsmasq. Am i' radvd. Enable RAs on your router. This means that when a failover occurs, IPv6 clients are still sending traffic to the old router's mac-address. > > I use "dnsmasq --version" and Jul 28, 2020 · Setting DHCPv6-stateless for ipv6_ra_mode configures the neutron router with radvd agent to send RAs. Note that ULA cannot get you to the internet. Dnsmasq accepts DNS queries and either answers them from a small, local, cache or forwards them to a real, recursive, DNS server. Dnsmasq setup Installation. >>> >>> >> I was initially surprised: it works just like you would like it to. conf'. Otherwise you end up with a situation where you Oct 19, 2020 · 本文介绍如何在CentOS服务器上通过radvd服务实现IPv6无状态地址自动配置。主要内容包括radvd的安装配置过程及配置文件详解，并演示了如何启动服务以及验证配置是否正确。 []Configuring Radvd (if your DD-WRT box is NOT your IPv6-router) Radvd is similar to a DHCP server. Dec 13, 2013 · It looks like radvd is handling out the IP addresses to the IPv6 client, but giving it the DNS servers for the Comcast IPv6 DNS servers. To compile and install dnsmasq, the following command (as root) is enough. M-flag false, O-flag true). Sep 11, 2021 · Dnsmasq と radvd を使用する。 なお、radvd は IPv6 の設定でのみ使用するため、IPv6 の設定が不要な場合はインストールしなくて良い。 Sep 22, 2021 · 3、dnsmasq配置 无论是Autoconf、dhcp stateless、dhcpstateful都需要用到RA消息，告诉client能过提供的能力，RA报文由dnsmasq根据配置文件构造。RA消息报文可以包含的一些flag，这些flag会反应在dnsmasq的配置上，决定client端地址分配的方式： Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in Jun 10, 2014 · Hello, i tried to add multiple prefixes to my RA config, but /var/etc/radvd. Aug 1, 2024 · dnsmasq开启dhcpv6需要开启以下两项配置 enable-ra 启用icmpv6 ra报文发送功能，这是SLAAC所必须的，实测开不开这一项都会发送ra报文 dhcp-range=::1,::1000,constructor:br-lan,ra-names 要开始dhcpv6必须指定起始和结束主机号，这里是::1和::1000,据我测试指定::或单独一个::1都无法启用dhcpv6，不用担心指定主机号范围后 In IPv6, routes have to come from Router Advertisements (for which I use radvd, not dnsmasq). Build and install Dnsmasq now. It advertises your IPv6 prefix to the local network, so that a new client can generate its own IP address. May 16, 2024 · 若您的网络环境支持IPv6并希望所有设备均能使用，可在主路由器上部署radvd进行路由通告。本文提供了radvd的Dockerfile示例、配置文件及Kubernetes部署文件，详细说明了如何配置和使用radvd服务。 Dec 30, 2023 · 最新进展: Linux radvd DNSmasq 均没有问题, 是机器下面挂的交换机配置出了问题做了 RA 转发, 难怪在机器防火墙上看不到转发包! 1 3 问题没有了, 但 2 这个子接口 ID 的参数的问题, 还望有大老能说说 Mar 1, 2023 · @pymumu 类似我发的那篇文档，里面讲述了如何使用 odhcpd 和 unbound 替换掉 dnsmasq，我的意思能不能用 odhcpd + smartdns 替换掉 dnsmasq。 Jan 2, 2012 · Jan 2 00:12:52 OpenWrt daemon. I found out that dnsmasq. Jun 18, 2023 · ホームルーターの設定 以下の優先DNSのipv6アドレスはdnsmasq. Like RDNSS you will need to add a DNSSL stanza to each interface. Dnsmasq is a nice little supertool for your home networks. As soon as the interface has an address, we can start serving router advertisements using radvd or dnsmasq and addresses using any of the available dhcpv6 servers. 5, FreeBSD 4. Jan 13, 2015 · Hi, I'm in the process of moving from radvd to dnsmasq for ra-only Everything works as before with radvd, except for one side case, if a user chooses for interface eth1 -- no-dhcp-interface=eth1 dhcp-range=lan,2001:db8:1:2::,ra-only,64,24h -- Then router advertisements seem to also be disabled. But this way openwrt becomes something else - may be more simular to standard linux distros. 7 is the first release to support DNSSL) It has the same dependencies as the Lucid package so can be installed easily. The list below captures the values set for the address configuration flags in the RA packet in this scenario. err radvd[7203]: poll error: Interrupted system call The other option is Prefix delegation size (sla-len), which is specified on the wan type interface and configures the prefix size to use for all attached networks (default /64). Without radvd, Neutron would need to rely on dnsmasq for RA functionality, which has a number of shortcomings: For DHCP the dnsmasq process runs in its own (dhcp) namespace. If you disable dnsmasq you will lose dns and dhcpv4. You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum Jul 21, 2025 · So it's either RADVD with DNSmasq's RA disabled or losing DNSmasq in the first place in your situation. info dnsmasq[6116]: using local addresses only for domain lan Jan 2 00:12:55 OpenWrt daemon. (radvd release 1. Dnsmasq has been run on (at least) Linux, uCLinux, AIX 4. info dnsmasq[6116]: using nameserver 193. Adopt the instructions to your distro, if you do not use Debian. Mar 20, 2011 · Is there a guide somewhere about how to rig up some IPv6-to-IPv4 and IPv4-to-IPv6. Frequently Asked Questions Jan 14, 2020 · You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum On 13/01/15 18:49, Lonnie Abelbeck wrote: > Hi, > > I'm in the process of moving from radvd to dnsmasq for ra-only > > Everything works as before with radvd, except for one side case, if > a user chooses for interface eth1 -- no-dhcp-interface=eth1 > dhcp-range=lan,2001:db8:1:2::,ra-only,64,24h -- Then router > advertisements seem to also Jul 24, 2025 · I am a primarily ipv6 environment using stateless, so switching from KEA/Radvd to try out dnsmasq. Many Linux clients won't accept a /59, so I added the same subnet on the RA services configuration page with a /64 length. May 31, 2025 · Given that my WAN-side prefix delegation from AT&T remains stable, and I've observed multiple radvd errors over the last year, the issue must be on LAN side with radvd. Dnsmasq is a DNS forwarder for NAT firewalls. I'm thinking I can disable radvd and use dnsmasq to handle all of that along with being the forwarder for IPv6 based DNS requests. 231. It is designed to be lightweight and have a small footprint, suitable for resource constrained routers and firewalls. Of course its possible to throw away standard openwrt management and use some daemons - bind, isc-dhcp server, radvd. Any ideas appreciated. ) but it can run on any machine with access 这些设置将 radvd 配置为对 2001:db8:0:1::/64 子网在 enp1s0 设备上发送路由器广告消息。 AdvManagedFlag on 设置定义了客户端应从 DHCP 服务器接收 IP 地址，而 AdvOtherConfigFlag 参数设为 on，定义了客户端也应从 DHCP 服务器接收非地址信息。 For whatever reason, my modem rebooted. May 29, 2020 · 对于无状态自动配置的ipv6测试需要搭建radvd服务器，这样在路由器/设备发送RS请求(icmpv6 type133)的时候，radvd服务器就可以返回 Jul 19, 2019 · Setting AdvValidLifetime or any AdvSomething parameters for IPv6 RA config breaks RADVD. 为什么需要 radvd ？ 如果你使用主路由方案，宽带也支持 IPv6，且希望家里的设备也都使用 IPv6，那就需要在主路由上部署 radvd 作为路由通告服务，类似 IPv4 的 DHCP 服务，为内网设备分配 IPv6 地址。 May 8, 2025 · With a lot of effort due to my big number of static reservations, I have now made the shift from ISC DHCP / Unbound to DNSmasq "only". This config tells radvd to get an IPv6-address from the wired side, and properly announce it to the LAN (br0). Our system setup wizard configures Unbound DNS for DNS and Dnsmasq for DHCP. conf I found dhcp-range=lan,::,constructor:br0,ra-stateless,64,600 The lease time is only 600s. example. My IPv4 dhcp server is a Windows pc, so I try not to run dhcp services from the router. May 11, 2016 · So you will need to configure radvd with "AdvManagedFlag off" and "AdvOtherConfigFlag on" (i. I have noticed that when using dnsmasq for IPv6 clients, within LuCI and the DHCP and leases menu the DUID value has Sep 1, 2020 · Linux IPv4/IPv6 router using shorewall and dnsmasq only, without radvd. 6relayd provides server services for RA, stateless and stateful DHCPv6, prefix delegation and can be used to relay Jun 30, 2025 · 文章浏览阅读8. The default configuration already enables its DNS server, see dnsmasq#Configuration for options. info dnsmasq[6116]: using nameserver 213. conf radvd (on the inside interface, to enable SLAAC and automatic router setup on the clients) can be set up such that it works regardless of the assigned prefix, by using “prefix ::/64”. Is this by design ? Aug 30, 2016 · I have setup softether on my machine and managed to run it for ipv4 addresses. IPv6-Internet comes with my fritz. The /64 got added to radvd. Not to mention, the banner at the top of the file: # Automatically generated, do not edit # Generated for DHCPv6 Aug 17, 2024 · RADVD for IPv6 assignement, DNSMasq for DHCP handing out DNS for IPv6 clients - how to do? As you know, Windows does not support setting up DNS via Router Advertisements (RDNSS) for IPv6. x Dnsmasq is normally run on a firewall machine (the machine with the modem or other connection to your ISP. (e. To use dnsmasq as DNS server, and optionally DHCP server, for the LAN, install the dnsmasq package. Mar 26, 2023 · After reading some guides and tinkering with the config for my Ubiquiti EdgeRouter-X, it's working BUT, conditional forwarding and my dnsmasq rule to route DNS through Pi-hole aren't working. > >> >>> Since dnsmasq-2. Remove static leases. Radvd is still in effect, since I use no DHCPv6. Aug 10, 2023 · Hi all, My Routing log is being spamed with "prefix length should be 64 for re1". 6. And with wireshark I can see only one advised, too. conf file, if you are even editing the correct one. It is intended to provide coupled DNS and DHCP service to a LAN. conf). I have an npm reverse proxy running on a VPS. These are ipv4-only; we will define ipv6-compatible leases in configuration. Feb 3, 2022 · 文章浏览阅读3. A lot of log entries with every RTR-ADVERT, RTR-SOLICIT on every vlan. If you aren't ready for an IPv6 implementation in production yet, practice in a test environment. >> >> Now, this works with radvd and dnsmasq. 1, so it wouldn't work for 2. Nov 15, 2019 · I'm running 384. Jul 18, 2017 · You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum Since dnsmasq-2. Thanks to ChatGPT for helping me to write the programs to extract the CSVs from the configuration XML for both the static reservations plus the DNS mappings and aliases. It seems to be a bit more limited in what it can do compared to radvd, but having it as alternative does not hurt either. The dnsmasq documentation mentions Gene Czarcinski wrote: > I have a working patch to have dnsmasq support RA instead of radvd. If you are using dnsmasq, the necessary additions to /etc/dnsmasq. Feb 8, 2020 · 今回は、Linux の Network Namespace と radvd / dnsmasq を使って IPv6 の SLAAC を試してみる。 IPv6 では、アドレスの自動設定にいくつかのやり方がある。 SLAAC というのは、そのひとつで RFC 4862 で定義されている IPv6 Stateless Address Autoconfiguration のことを指す。 SLAAC では ICMPv6 NDP (Neighbor Discovery Protocol) の RA May 8, 2025 · Quote from: franco on May 08, 2025, 03:59:38 PM The goal for 25. conf but they are prefix specific options (man 5 radvd. Radvd didn't do dhcpv6 at all. You have to Install Dnsmasq since we have define DNS server as 'fc00:0101:0101::1' in 'radvd. Both Dnsmasq and radvd broadcast the correct prefix (and both /64), the client GUAs are accordingly in both setups. Those options are set globally in /var/etc/radvd. On a related item: DHCPv6. (actually, the parameter/config option wouldn't need to be changed just to use dhcpv6, it would only need to be changed if you wanted to use dnsmasq for ipv6 router advertisement instead of radvd) So there are 3 possibilities for deciding whether to use radvd or dnsmasq for router advertisement: 1) configure-time option to set a compile flag which will compile the code to use either radvd or Jan 4, 2020 · I set up a tap with radvd + dnsmasq for ipv6. I couldn't figure if there an option to control logging level but I have an SSD, so I prefer not to log so much. Aug 13, 2024 · Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in DD-WRT Forum Index -> Advanced Networking All times are GMT You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your Aug 28, 2011 · When I enable IPv6 and radvd in DD-WRT, the router gets in IPv6 address, but the devices on my LAN do not. would completely replace it. Mar 19, 2012 · The dnsmasq man page has an extensive description of this option. On BSD, you may need to use 'gmake'. It tries to follow the RFC 6204 requirements for IPv6 home routers. Apr 5, 2013 · What isn't commonly known is that dnsmasq can provide all the functionality of radvd for local prefix announcements and will also act as a dhcpv6 server, with integration into the local DNS service too! Jun 17, 2025 · When I enable Router Advertisements (RAs) via dnsmasq, clients seem to get their IPv6 addresses just fine. h. Obvious Stuff I had plenty of trouble getting the tunnel and radvd to work properly together and so I wanted to eliminate as many confounding factors as possible. Franco said something about not showing ISC DHCP if DNSmasq is enabled, maybe RADVD is not shown, then, as well. 1 firewall with Dnsmasq as the DHCP server, and additionally configure ULA prefixes for improved local addressing. RADVD for IPv6 assignement, DNSMasq for DHCP handing out DNS for IPv6 clients - how to do? As you know, Windows does not support setting up DNS via Router Advertisements (RDNSS) for IPv6. Nov 16, 2025 · This works flawlessly. LAN IPv4 Configuration Type is Static and IPv6 Configuration Type is Tracking. everything is working fine if I connect it directly. Describe alternatives you've considered Disabling Unbound and Dnsmasq and not configuring any global DNS servers works, but is typically not desirable. May 14, 2021 · If you'd like to be able to ping6 name on your local network based on the names requested by your hosts, Disable radvd; dnsmasq will do it. Note that replacing a config file with your own implies Oct 24, 2020 · I am on ArchLinux, and I am running IPv6 in my local home network. > I was initially surprised: it works just like you would like it to. . tcp 方式向上游 dns 查询的好处是，电脑用 udp 去向 dnsmasq 查询，dnsmasq 就一定也会用 udp 协议去向上游查询，而 smartdns 可以设定只用 tcp 方式去上游查询。 所以 dnsmasq 要配合 pdnsd 或别的，smartdns 一个就搞定了。 May 9, 2025 · With DNSmasq and the changes I submitted, the option must be given without the double quotes. Since switching the dnsmasq to handle IPv6 with the enable-ra, I don't seem to be having the same issues I've had with IPv6 leases being lost on clients after a while, so I may just keep dnsmasq for IPv6 and have odhcpd disabled. RA Subnet is /64 and WAN DHCPv6 Prefix Delegation size is also /64. 1k 阅读 Jul 25, 2024 · Jump to: You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in I'm pretty sure it would be possible to have the same feature with announces only from radvd and dnsmasq passively listening, but I didn't find a way to do so and for what I've been using radvd it doesn't seem Aug 5, 2022 · DD-WRT Forum Index -> Advanced Networking All times are GMT You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your Nov 18, 2021 · If you did not want dnsmasq to send RAs, disable that. 48 does not support IPv6 dhcp but does handle IPv6 for >>> dns and CentOS 6 does include radvd, I also propose that a >>> libvirtd. kea-dhcp-ddns. > > The current patch has three variables added to the _virNetworkObj > structure: dnsmasqRA flag and both major and minor values for the > dnsmasq's version. html, radvd. There are various methods through which you can interact with these config scripts to customize them. After this reboot event, both are gone and RADVD is gone from the services page. 安装radvd 首先，需要安装radvd软件 Oct 19, 2016 · Without ipv6 odhcpd can be safely disabled. I'd like to be able to run a dual stack on my home lan but not forfeit ipv4 just yet. how can i do the same for ipv6 ? an e. Radvd did them but wasn't as noisy about it. On both linux and windows machine, I found ipv6 become If I recall correctly, enabling "manual adjustments" in the Interfaces -> LAN just means you now have control over the settings in Services -> Router Advertisements and in Services -> DHCPv6 Shouldn't have to go anywhere near radvd. Jun 26, 2020 · 感谢@隐形的肩膀DNSv6的不太行，Win10时好时坏，安卓根本不行，至少我的安卓是这样。Win某些情况下更喜欢DNSv4，DNSv6没有就算了，反正不是默认的就行安卓可以用radvd单 Without radvd, Neutron would need to rely on dnsmasq for RA functionality, which has a number of shortcomings: For DHCP the dnsmasq process runs in its own (dhcp) namespace. Mar 2, 2022 · When looking at the relevant documents, I found that the functions of the two services odhcpd / dnsmasq overlap. conf option be added. Now the strange part. But the ipv6 gateway is missing if it is connected with bridge. Jun 19, 2014 · Router Advertisements (RAs) are fundamental to the IPv6 Neighbor Discovery standard [RFC_4861]. Every device in every vlan got an IPv6 slaac and dhcpv6 address. At first it seemed to work pretty well. 4 OpenBSD and Tru64 4. conf only contains one. Feb 23, 2011 · Install Dnsmasq. xxl mlubx jkgiummz ebm sacld rejmac teqdi akgx cqdjd bakw hqtpij keexh ukvzwh ybzkf nclwsd