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My router hardware has a AR8327 switch which is supposed to support hardware IGMP snooping, but it seems it doesn't work on my OpenWrt of trunk.

02.08.2016 · 按照老套路弄完，然后激活 Chromecast 2 进行设置，可每次投屏后一直 stuck，电视画面停留在 Youtube 血红的 Intro 页面迟迟不进入节目。换回旧的路由则一切正常。问题的出处：从 2.6.34 内核开始， OpenWRT 默认关闭了 IGMP Snooping 。

However, Openwrt is not doing any IGMP snoofing. LAN is flooded with UDP packets. Tested with a packet sniffer on the same LAN. My conclusion is that IGMP snooping is broken in Openwrt. I have tried binary release of 12.09-rc1 and latest gargoyle …

04.01.2013 · I thought I could use IGMP Snooping for this, since I found a comment "starting from 2.6.34, the kernel has IGMP snooping feature for the software bridges (disabled by default in OpenWrt)" and my kernel is 3.6.11 running r34761, but I can't find anywhere that explains how to turn this feature on.

07.06.2018 · Luckily, starting from 2.6.34, the kernel has IGMP snooping feature for the software bridges (disabled by default in OpenWrt) which should prevent unnecessary traffic on ports that were not actually subscribing.

Multicast problem: UAP-AC 3.2.5: Works fine in OpenWRT Barrier Breaker ... Disabling IGMP Snooping and Multicast filtering via config.properties does not ...

IGMP snooping is set in kernel_menuconfig and kmod-brigde is set in menuconfig. But network is flooded with multicast packages. I had to connect a switch between the router and the LAN and set igmp snooping on the switch and everything came back to normal working condition. Device is a Comtrend 5813n with a 6369 CPU.

... LAN -> Edit -> Physical Settings -> Check "Enable IGMP snooping"; System -> Software -> Update lists -> Install the "igmpproxy" package.

01.09.2021 · I am using a Dir-860l in my home setup. If I add the option igmp_snooping '1' to my bridge interface in /etc/config/network I can see that the multicast traffic (my IPTV) is no longer hitting my WiFi network, which is good. However, IGMP snooping does not seem to be working on my individual ports on the switch. I am still seeing a large amount of multicast traffic on all …

This add support for IGMP Snooping on atheros switches (enabled by default), which avoids flooding the network with multicast data.

The (old) wiki page on UDP multicast (https://oldwiki.archive.openwrt.org/doc/howto/udp_multicast) says at the end: With IGMP snooping, ...

【坑1】IGMP snooping和IGMP proxy IGMP snooping和IGMP proxy区别网上一大堆介绍，引用度娘文档一段： IGMP snooping 的实现机理是：交换机通过侦听主机向路由器的IGMP成员报告消息的方式，形成组成员和交换机接口的对应关系；交换机根据该对应关系将收到组播数据包只转给具有组成员的接口。

IGMP Snooping is a feature for switches to learn what multicast groups are needed on which ports.Routers not handling multicast routing don't care.. That said, without an mrouter in the network, you need to configure one (or more) igmp queriers.This ensures group membership reports are flood through the network periodically to keep the forwarding information up-to …

Finally got a response here: echo "1" > /sys/devices/virtual/net/br-lan/bridge/multicast_snooping. or set it in file sysctl.conf.

只需把OpenWRT 写入1900AC v2 的第二片ROM 就行，也可以刷回原厂固件，永不变砖。 鉴于手上两个Chromecast 一代根本无法识别5G Wifi 信号，又搞来个 ...

18.01.2019 · In the usual scenario, LAN clients such as smart TVs wish to receive multicast streams from an ISP IPTV service operating on IPv4.Since the LAN clients are behind the OpenWrt router they can not simply send an IGMP request and start receiving the relevant TV data as only other machines on the LAN will hear the IGMP request. Instead the OpenWrt router must act as …

How can I enable IGMP snooping in OpenWrt on my router Thanks. Jonas Gorski 2013-02-24 11:42:39 UTC. Permalink. Hi, My router hardware has a AR8327 switch which is supposed to support hardware IGMP snooping, but it seems it doesn't work on my OpenWrt of trunk.