Am Mittwoch, 6. Dezember 2017, 13:12:41 CET schrieb James Knott:
On 12/06/2017 12:51 PM, Jan Ritzerfeld wrote:
Strange. Maybe the WiFi router or access point blocks IPv6 multicast groups? WiFi access points are effectively an Ethernet bridge and like a bridge/switch are supposed to pass all valid Ethernet frames, regardless of content.
Yes, they are supposed to. Unfortunately, not all APs offer correct multicast bridging even not using IPv4. It's sad. One of my repeaters got a faulty firmware update once that stopped multicast bridging. I had to wait for another update.
Routers don't pass multicasts, unless specifically enabled. There are methods for a device to request a router pass a specific multicast address. The router in turn will do the same to the next upstream router, etc.. However, some multicasts such as mDNS are for the local link only and not passed through any router.
You're right: mDNS is local like broadcast and, thus, there is no real routing involved. Gruß Jan -- Ambition is a poor excuse for not having enough sense to be lazy. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org