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M4300 IGMP snooping
Hello,
i have problems with configuring IGMP Snooping on my Netgear M4300 switch.
Heres a link with pictures of my current configuration: https://imgur.com/a/N3UaYIK
All devices ar...
- Hi All,
We have worked out the issue with Netgear Support. Turns out the Bonjour service is disrupting MDNS between the TX and RX.
Disabling the bonjour service fixed it.
Could you provide the following:
1) network topology including the router, IPTV
2) go to the maintanence->export->HTTP file export, select 'techsupport file' and click the apply button.
3) capture the packets on the port connected to the IPTV Streaming server.
I have opened case #40496719 with support regarding this issue. For those interested I have done a basic test of both firmware versions (12.0.4.9 & 12.0.7.7)
1) boot switch using firmware to test
2) erase startup-config
3) reboot switch
4) increase MTU on interfaces 1/0/1 & 1/0/2 where my multicast devices are attached
5) check MFDB
On the 12.0.7.7 firmware my multicast receiver does not join the group. On 12.0.4.9 it does.
Here is a diff showing the tech-support for 12.0.4.9 (left) and 12.0.7.7 (right)
what's the multicast IP address? could you provide a captured packets?
Here's some PCAPs using different firmware 12.0.4.9 and 12.0.7.7: https://ufile.io/vwnha (can't upload them here)
This was done on a stack of M4300-52G-POE switches and includes a TechSupport dump
The switches are always in factory configuration
I have also tested firmware 12.0.7.8 today and the problem still exists.
You'll notice in the 12.0.7.7 the receiver is sending MDNS queries to 224.0.0.251 but never sees a response. In 12.0.4.9 the response is seen followed by a peer-to-peer TCP negotiation of metadata/keys and then video traffic starts flowing.
169.254.3.3 is the transmitter
169.254.6.7 is the receiver
225.0.100.3 is the multicast group the transmitter is sending traffic to and the receiver is trying to join
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