Does anyone know whether routerOS support unicast reverse path forwarding? I'm particularly interested in implementing it on point to point interfaces, such as PPPoE.
I know linux supports uRPF, so if it's not there in routerOS I'll put in a feature request for it.
Thanks.

joining the request: it IS necessary to control IP falsification on ppp connections...

also, it would be nice to be able to check src-mac of packet according to ARP table to do the same thing on Ethernet interfaces