13.06.2025, 12:01
It all depends on switches used and the whole network setup.
Most simple "dumb" switch will forward multicast packets with default TTL of 1 without any extra configuration.
TTL value is decreased after each hop (router). If it reaches 0 then the packet is discarded. Default value of 1 means that the multicast packet cannot leave the local network.
If your setup uses VLANs then multicast routing must be setup between VLANs. TTL should be set to 2 in this case.
Most simple "dumb" switch will forward multicast packets with default TTL of 1 without any extra configuration.
TTL value is decreased after each hop (router). If it reaches 0 then the packet is discarded. Default value of 1 means that the multicast packet cannot leave the local network.
If your setup uses VLANs then multicast routing must be setup between VLANs. TTL should be set to 2 in this case.