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

We have a switch (Cisco WS-C3750G-48TS) with only a C3750-IPBASE-M image (not a 'C3750-IPSERVICES-M' license). Is there any kind of multicast support here?

All I need it to do is route multicast packets to an RP (ip pim sparse-mode). Do we really need the service (C3750-IPSERVICES-M) license/image?. The uplink switch is running C3750-IPSERVICES-M, but this switch doesn't seem to carry any ability to configure multicast on an interface.

share|improve this question
up vote 3 down vote accepted

According to the Cisco Feature Navigator the 3750 supports PIM version 1 on the following releases:

  • 12.1 EMI Image
  • 12.2(50)SE or lower EMI Image or IP Services
  • 12.2(52)SE or higher IP Base
  • 15.0 IP Base
share|improve this answer
Oh, there it is (Cisco Feature navigator). Thanks! – mrtechalot Jul 10 '12 at 21:39
cisco Feature Navigator has its shortcut : – petrus Sep 17 '12 at 20:37

I wish I were 100% sure but I'm pretty sure you can do regular IGMP snooping based multicast with the base code on 3750's - we do it one larger boxes but these instructions suggest you can do it on those boxes too.

share|improve this answer

What is the output of ip multicast-routing? That will tell you if you have the capability or not. If not, you will probably need to upgrade your IOS.

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.