Differences
This shows you the differences between two versions of the page.
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network:multicast [2010/11/17 16:22] tibor |
network:multicast [2010/11/17 16:43] (current) tibor |
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| Multicast packets requested by multiple clients on the LAN are still sent using link layer multicast, to ensure they reach all clients. | Multicast packets requested by multiple clients on the LAN are still sent using link layer multicast, to ensure they reach all clients. | ||
| + | ==== Configuration ==== | ||
| + | The [[web GUI:Security profile]] page has two fields controlling IGMP/multicast: | ||
| + | |||
| + | ^ Applications from inside\\ IGMP/Multicast ^ General settings\\ IGMP/Multicast proxy ^ Resulting behaviour ^ | ||
| + | | | | No IGMP nor multicast packets allowed through the firewall | | ||
| + | | | x | No IGMP nor multicast packets allowed through the firewall | | ||
| + | | x | | All IGMP and multicast packets allowed through the firewall without any changes | | ||
| + | | x | x | Only valid IGMP and multicast packets (actually requested by clients on the LAN) are allowed through the firewall, link layer unicast to single LAN client, multiple IGMP clients support. | | ||
| + | |||
| + | If you have multiple WAN interfaces you select which WAN interface to receive multicast data streams from on the [[web GUI:Extra WAN interfaces]] page. Read more about [[network:extrawan#IGMP proxy|how IGMP proxy uses extra WAN interfaces]]. | ||
| + | |||
| + | ==== Logging ==== | ||
| + | Multicast packets are by default //not// included into the [[web GUI:firewall log page|firewall log]], as the amount of data multicasted usually is so much it would clog the firewall log down. You can however turn on logging of multicast packets by enabling **Log UDP multicast packets** under **Firewall Log** on the [[web GUI:Log Configuration page]]. (You must of course also set Firewall Log to other than off on that same page too, to start logging packets.) | ||
