OSPF type broadcast over GRE for NRHP

[oskar at cetex.se]

I've had this issue myself when i was investigating DMVPN using 
OpenNHRP.

It's a simple patch to remove the check / enforcement needed in bird, 
can't remember where now though since it was a while ago.
When the check was removed i could set the interface to any type i 
wanted and i got ospf routing to work.
No drawbacks detected during the testing.


2015-03-02 21:49 skrev Clint Armstrong:
> I am trying to use BIRD to run OSPF inside a Phase 3 DMVPN
> using OpenNHRP. The problem I'm seeing is that it appears to be
> impossible to force type broadcast on a GRE interface. When I try, 
> the
> message "Cannot use interface gre1 as broadcast, forcing nbma" is
> logged. 
>
> This may normally make sense, but the OpenNHRP daemon captures
> multicast traffic on it's interface and forwards it appropriately.
>
> A configuration parameter to bypass this protection and allow
> broadcast on a GRE interface would be very helpful.