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Multicast over site to site vpn using ASA's 5580

markcole
Level 1
Level 1

Hello

Would any one know if it is possible to run multicast over a site to site vpn

I have the following setup

multicast source ---6500----asa-------site to site vpn----------asa-------6500------multicast clients

if so..... is there any fun and games i should look out for ?

Cheers for any info

Mark

6 Replies 6

Lei Tian
Cisco Employee
Cisco Employee

Hi Mark,

Ipsec doesnt support multicast, you can configure GRE on 6500 to encapsulate multicast traffic before the encryption.

HTH,

Lei Tian

Hi,

Like Letian said, the ASA's only support unicast traffic over IPsec.

You can run OSPF over the IPsec tunnel, but its because OSPF is passed as unicast.

If you need to pass multicast, terminating the VPN on the ASA is not an option, or using GRE on the router/switch to pases the mulsticast traffic

If you want to encrypt the traffic, the best choice is to configure GRE on the 6500 and IPsec on the ASAs.

In this way the ASA can encrypt the GRE packets using IPsec (Multicast will be carried in GRE).

Federico.

andre.ortega
Spotlight
Spotlight

Hi,

is possible. You could configure L2TP + IPSec.

L2TP permit use of multicast.

Regards.

Can you configure a Site-to-Site between two ASAs using L2TP over IPsec?

I've never seen it.

Federico.

Sorry,

Is possible only in remote access VPN ("client to site").

Thanks.

Hi All,

I have similar requirment , I need to access multicast stream over RAS VPN client machine . please can you help me how to do it

I am having CIsco ASA 5540 VPN device ,

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