Reject incoming traffic if it's spoofed?

RouterOS General
1

It’s possible?

http://spoofer.caida.org/

Thanks!

2

No. A characteristic of this problem is that it can only be solved when all ISP finally co-operate and implement BCP-38 on their networks. Once the traffic reaches you, it is no longer possible to see if it is spoofed.

Of course you can help by making sure that your outgoing traffic is validated.