Firewall improvement for multiwan

Yeah, I know you might switch all traffic by ping, in this case, it’s more granular.
It’s closer by its behavior to MPTCP, which is nice, as it’s optimizing latency.

https://en.wikipedia.org/wiki/Multipath_TCP

IMHO: it’s easy for Mikrotik to implement the non-replied IP table, so firewall scripts may process it.