Off hand I see no reason why made peering  will not work as long as the 
firewall Does not age out the taco sessions. In other words the timeout on the 
firewall must be equal to or greater than the keep alive in MSDP I  assuming 
the firewall have rules allowing MSDP. Multicast is something els since PIM 
needs to be allowed   I reccomend using an IPSec tunnel and send multicast 
across it. 




On Oct 13, 2011, at 3:10 PM, Aaron Moreck <[email protected]> wrote:

> Can anyone give any comments regarding a setup where two multicast domains
> where separated by a firewall performing PAT?
> 
> Setup in question
> 
> Public Network                                               Private Network
> 
>                             |---------------MSDP------------|
> 
> MCast Source--------RP------------Firewall----------RP--------Client
>                                    (Outside)        (inside)
> 
> 
> Firewall is translating using PAT from the inside to outside.
> 
> Any comments concerns with this?
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