I have a L3 network topology where the core network segment doesn't support IP Multicast protocols.
As such, I have configured a couple of X460 switches/routers in order to provide an end-to-end GRE tunnel able to encapsulate Multicast traffic without the need for IGMP/PIM (no control on the core network routers).
I expected to force Multicast traffic to be routed through the GRE tunnel interface by configuring a route in a similar way I'm used to do with Linux, e.g.:
add route -net 18.104.22.168 netmask 22.214.171.124 dev my_tunnel_gre
Unfortunately, I haven't found a command in the manual to configure such a route on ExtremeOS.
Does anyone have any idea how to achieve such a behavior?
I appreciate any answers able to solve the above issue.