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Forum Discussion
Solved
M4300-28G-PoE+ & Tivo
Greetings - We just upgraded from a M4100 to the M4300 (GSM4328PB), flashed the latest firmware on the 4300 to 12.0.2.20. We have a Tivo Bolt and a number of Tivo Mini Vox 4K's at our facilit...
Thanks to Laurent's help we solved the problem. Great support and incredibly responsive.
For future reference and for anyone coming across this thread - for Tivo to work across an M4300 you need to disable IGMP snooping and MLD snooping. Tivo, like a lot of consumer IOT devices, assumes a flat, "stupid" network for discovery.
Hi Jon
Thank you for your message and congratulations, M4300 series is NETGEAR top of the line and a great upgrade from M4100 series.
Yes, all M4300 switches come with Layer 2 Multicast pre-configured (IGMP Snooping, Querier and Fast Leave enabled across entire VLAN 1) for convenient Video-over-IP deployments. As a founding member of the SDVoE Alliance, NETGEAR provides the backbone network that makes it all possible.
If your Tivo installation was working fine on a previous M4100 switch, we need to check two things:
- Is the IGMP configuration the problem?
- Was there any other required configuration on the M4100?
The Community can help you figure out. We should start with 1/ and "un-do" the L2 Multicast configuration in this order:
- Using the Web GUI for instance, Switching \ IGMP Snooping \ Querier VLAN Configuration: delete the line "VLAN ID 1 - Querier Mode Enable - Querier VLAN Address 0.0.0.0"
- Switching \ IGMP Snooping \ Querier Configuration: set "Disable" for "Querier Admin Mode"
- Switching \ IGMP Snooping \ IGMP VLAN Configuration: delete the line "VLAN ID 1 - Admin Mode Enable - Fast Leave Admin Mode Enable"
- Switching \ IGMP Snooping \ Configuration: set "Disable" for "Admin Mode" and for "Validate IGMP IP header"
- Maintenance \ Save Config: check the box "Saving all applied changes" and click APPLY on the bottom right
Please let us know how it goes after this, as a first step. Thank you!
Regards,
First, thanks for the help!
On my M4300, I did everything you suggested, a few small differences:
IGMP VLAN Configurator: cannot delete the VLAN so set all options to Disable.
IGMP Snooping Configuration: all 3 options (Admin/Validate/Proxy) to Disable.
Unfortunately, still doesn't work. And again to test, I plugged everything together with a small, dumb switch, works fine. I also looked at the M4100 options, nothing jumped out as being different.
Thanks again - Jon
Hi Jon, thank you and sorry about the inconvenience. We need to root cause this behavior.
I am suspecting the problem comes from default unregistered Multicast filtering (the switch filters / discards any unregistered Multicast flooding by default).
I see several options / workaround here, but let me check internally before asking you anything. We'll be back in this thread asap.
Regards,
Hi Jon
There must be IGMP snooping still going on that is preventing TIVO required "flooding". I am sorry about that, but we will need your tech-support file for further troubleshooting on our side. Can you export this file from the switch and send it to me using Private Message?
Please refer to this KB for exporting the tech-support file:
- Log in to the command line interface of the switch and from enable mode run the command show tech-support.
- Using GUI/Web interface, go to Maintenance - Upload / Export - HTTP File Upload / HTTP File Export.
- In the File Type drop-down menu, choose Tech Support and click Apply.
Regards,
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