RA second router/subnet

[Com DAC]

Is it possible to have the router advertisements advertise as second router for a specific subnet? Currently I've got a gateway/route defined for it in pfsense but if I could advertise the route to my internal network then the traffic wouldn't ever have to hit pfsense.

[jimp]

Normally the other router would announce itself. If it's possible to use it from that subnet it must already be there.