Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

If a client connects to one vpn server, can it join a video meeting which is based on IGMP?

share|improve this question

RFC4045 describes extensions to support multicast over L2TP protocol. So, it seems possible, but it depends on the implementation you use.

share|improve this answer

In addition to what Khaled had written, there are other encapsulation protocols which would support Multicast encapsulation - GRE for example. Most "multicast tunneling" techniques allow multicast transmissions to cross unicast-only networks using GRE. The more advanced and flexible version of tunneling is AMT which is in the standardization process for about a decade now, but has working implementations and sees some use.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.