@Clive_A Everything turned out to be much easier. To use the filtering of the multicast traffic, the MLD Snooping for IPV6 should also be turned on, although I do not use IPV6.

@waadd As far as I know, the IP address for Proxmox is installed statically, and not by DHCP. Try to connect to the Proxmox console and see the server address with the ip a command.

Hi I had a problem when setting up IGMP Snooping in OMADA controller. Earlier I already tuned according to the instructions How to configure IGMP Snooping on Omada switches for hotel IPTV scenario...