My org is preparing to multi-home. We have a legacy /16 that we own as well as a /24 from our current provider. Our plans are to start advertising a /24 out of our /16 so we can readdress at our discretion out of provider space. My question is: Do we need to advertise both /24s from both ebgp routers, or would it suffice to only advertise the ISP's /24 from their connection, and our own /24 from the new connection?
Hope my question is clear. Please let me know if more info is needed.
Thanks in advance.