Multicasting over GRE

Answered Question
Jun 17th, 2010

Hi,

If we configure GRE tunnel between over the network which is not Multicasting enabled. But we need to send multicasting packets over GRE tunnel.

If we run routing protocol on the GRE tunnel it will form the neighbor relationship. Will it encapsulate the multicasting packets?

Please share the experience.

Thanks in advance


Subodh

I have this problem too.
0 votes
Correct Answer by Hitesh Vinzoda about 6 years 5 months ago

Hi,

Make sure that RPF is done over the GRE tunnel, otherwise multicast will not work...

HTH

Hitesh Vinzoda

Pls rate useful posts.

Correct Answer by Tod Larson about 6 years 5 months ago

Multicast over GRE works great.  We use the ip pim sparse-dense-mode command on each end of the tunnel and performs great.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (2 ratings)
Loading.
Correct Answer
Tod Larson Thu, 06/17/2010 - 19:24

Multicast over GRE works great.  We use the ip pim sparse-dense-mode command on each end of the tunnel and performs great.

Correct Answer
Hitesh Vinzoda Thu, 06/17/2010 - 22:31

Hi,

Make sure that RPF is done over the GRE tunnel, otherwise multicast will not work...

HTH

Hitesh Vinzoda

Pls rate useful posts.

bapatsubodh Fri, 06/18/2010 - 03:47

Thanks guys !!

By RPF you mean reverse path  forwarding ..am I correct ..

Actions

This Discussion