Question: Should I Disable Multicast?

Does multicast work over the Internet?

2 Answers.

You cannot multicast on the public Internet, but you can multicast across the public Internet to another site by using a tunnel that supports multicast.

Multicast routing is very different from unicast routing, and all the routers in the path of the multicast packets need to have multicast routing configured ….

Should I filter multicast?

Multicast traffic is frequently filtered when it is either unnecessary (for example, because no applications that utilize multicast are running on the network) or to prevent multicast-based attacks from being initiated (for example, to prevent an attack that uses multicast traffic to saturate a network with bogus …

Should I enable wireless multicast forwarding WMF?

Wireless Multicast Forwarding (WMF) is an efficient way to forward traffic on the wireless network. … It is commonly enabled in situations when there only interested hosts need to receive a multicast. Enabling this feature is useful to improve wireless connectivity in your network.

Should I disable IGMP proxying?

IGMP proxying should be left enabled unless it causes problems. This allows the router to convert Multicast traffic into Unicast traffic, allowing for the network especially wireless devices, to work more efficiently.

Does Netflix use multicast?

Since multicast is so much more efficient than unicast, large companies like Netflix and Youtube must be using this to stream videos right? Unfortunately multicast on the Internet has never really been implemented. These large video companies use LOTS of unicast traffic to deliver videos to their customers.

What is WiFi multicast?

Multicast transmission is a one-to-many broadcast methodology in which a WLAN AP forwards all broadcast packets from a multicast server source to a client subnet where multiple client devices are listening. The multicast server sends out a single stream during the transmission, allowing multiple clients to listen in.

What is IGMP snooping and why would I need it?

IGMP snooping is designed to prevent hosts on a local network from receiving traffic for a multicast group they have not explicitly joined. It provides switches with a mechanism to prune multicast traffic from links that do not contain a multicast listener (an IGMP client).

Where is multicast used?

It is the IP-specific form of multicast and is used for streaming media and other network applications. It uses specially reserved multicast address blocks in IPv4 and IPv6. Protocols associated with IP multicast include Internet Group Management Protocol, Protocol Independent Multicast and Multicast VLAN Registration.

Should I disable IGMP?

You should generally leave the IGMP Snooping option as disabled if you do not use mirroring functions or other type of multicast traffic.

What does multicast enabled mean?

Multicast IP Routing protocols are used to distribute data (for example, audio/video streaming broadcasts) to multiple recipients. Using multicast, a source can send a single copy of data to a single multicast address, which is then distributed to an entire group of recipients.

What is the best multicast rate?

A typical value for this option would be 30% to 40% with the minimum basic rate being 6Mbps or higher. Extreme Access Points calculates the multicast air time (not bandwidth) and drops multicast if the configured limit is exceeded.

What devices use multicast?

Many devices use multicast/broadcast traffic to advertise and discover services on the network. Protocols such as Bonjour and MDNS make streaming to an Apple TV or connecting to a printer simple – but that simplicity comes at a cost.